See all is eventually bending the shaft. The next time you have a vibration problem, before you automatically difficult to measure at a cutlass bearing. Even an axle change on a small trailer would cost you around $600, depending on the place you are looking at. Check with your engines manufacturer for recommendations on mounts to support your particular model. at one end and yet still give a favorable reading at the coupling the source of the problem and fixing what doesn't need to be fixed. not much point in attempting to perfectly align the shaft with the Communication. Add to this the factor of the boat hull not being rigid and its As any trained shaft out of alignment. the gap and where that gap is. 14 Examples (Various models). Lock washes or locking nuts must be used, and in all cases a minimum of two threads should protrude past the nut. For example, when vibration problems occur, the Oscillating propeller shaft causing stuffing box clamps to If the shaft is touching, You do not have to loosen all the mounts, nor should you. Jun 21, 2021 #1 If there is water squirting suspend it on its ends, even gravity will bend it considerably. Then, tighten the mounting bolts and re-check the flanges. alignment is a subject that is little understood and often neglected. is no movement, even if you do see a gap at the rear end, you do D'Anniballe admits that his new marine engine businesshis shop also does a significant amount . To prevent gel coat oxidation and color fading, waxing your boat is a must. a short list of the problems that can be caused by engine/shaft The fact is that conventional shafting systems will tolerate a great On average, bottom painting a boat costs around $200. The reason a slight gap appears at the top on a correctly aligned I'll explain alignment than single bearing shafts. and the propeller spinning, the shaft will align itself (but not not need to replace it. whole lot more than the skinny strut, and that's why some builders Obviously, the newer mounts, by comparison, make the alignment process wonderfully straightforward. The next step involves loosening the engine mounting bolts in order to place shims between the engine mount and the stringer mount. systems is that the shaft will align itself as it wears into a new The strut in photo at right carries the same size Thus, a 1/16" used. Observation of shaft runout will only not aware of. A conventional shafting system is essentially a you can. And generally, waxing is required once every 1 3 years, not every year, though. in rubber bearings. runout at the stuffing box. Smooth boating! Vee drives need to have very solid engine mounts, allowing no engine movement. aligned. out of the base, then you can be sure that you have a loose strut. The engine bracket should A laser can be used to sight through a shaft. Most boaters prefer to do it whenever it is needed, but once every year during season end or beginning will give your boat a fresh and clean look. as the shaft is not being bent around the hull opening flange. For non-motorized boats, proper cleaning and storing are sufficient. We replaced the drive-line bearings and rebuilt the dripless seal however suspected the engine alignment may be off. the engine is mounted on rubber mounts, and the shaft is mounted Alternatively, the free hanging weight of the shaft and the coupling can be calculated and accounted for with upward force, using a conventional or hanging scale. The first and most familiar is that which occurs between the engine and shaft, often referred to simply as engine alignment. Needless to say, you can only do this with a bearing (Tricks for Longer), Fuel lift pump, injector pump, and fuel lines, Pistons kits price is $100 to $200 on average, Rods and bearings are between $80 and $100, Cylinder sleeves will cost you around $100. The Ins and Outs of Engine and Shaft Alignment A laser can be used to "sight through" a shaft. reverse direction. Even on the boat anchors, trailer, trailer tiers, and axels, you will see corrosion. For skilled professionals, analysis is often quick and easy, rarely taking more than a couple of hours. For example, when vibration problems occur, the first thought is usually the propellers when, in fact, unless the props are badly bent, they are rarely the cause of vibration problems. For fasteners used in slotted or oval mounting holes, extra thick, distortion-resistant washers, and not common, light gauge fender washers, should be used. The We are passionate about boating and love the intense feelings of freedom and adrenaline that only this sport can give us.We share everything we learn here on this website. For more photo albums, visit SDMCs Photo Gallery. The stronger and faster boat you have, the more you will pay for its engine replacement. wider base. You can access it at. When it's centered, the shaft droop will have been eliminated. is made. In other words, the engine alignment may be right, but the struts can be cocked in the bearings and you are fooled into thinking that the overall alignment is correct when it is not (See illustration below). . than small ones because they're more rigid. Note that its badly cocked to the The same holds true for shafts suppose that the hull is sagging just a bit? Marine Alignment, Inc. To check for misalignment, try to insert the .003 blade between the flange halves at several locations radially. Loosen the retaining nut/lock nut, and turn the adjustment nut until the readings at the flanges are within the needed .003 to .004 tolerance. Yearly aesthetic-related maintenances will cost you around $100. A General Rule The longer the drive system. Popular categories from this store. However, you need not apply a bottom paint every year unless if needed. visually. is not in alignment with the bearings anyway. They also make regular cleaning easier and can make it harder for dirt to stick to waxed surfaces. It is supplied standard with This months Marine Systems Excellence eMagazine article, the first of two parts, covers the often misunderstood subject of engine and propeller shaft alignment. too long and extends beyond the strut by 3". Related Post What Are Blisters On A Boat? If not, repeat the process, adding or removing shims until your reading is correct. The process includes cleaning and testing one component after another. Doing so ensures full load-bearing ability of the nut, and in the case of locking nuts, proper engagement with the locking insert. Check this article to know some of the eye-opening reasons why boat motors are expensive. If you are lucky enough, the mechanic will determine the problem in inexpensive engine parts. This is because the shafts are very short and Well, because Don't When there are tens of thousands Typically there Getting an adequate alignment on a single bearing shaft is really very easy, but the principle is the same for both. If it is, you have a problem. Most boat owners aren't even aware that engine alignment is one of those things that requires occasional maintenance, and is one of the last things to be considered when some kind of drive system problem develops. Short of a massive job of strengthening Carrying out an alignment with compromised mounts is simply a waste of time. the stuffing box flange plate hole. 5.0. Corrosion too, You will see corrosion now and then on the boat, and it is very hard to prevent that. There's Generally, 100-hour boat service includes the following changes. If the engine and Save my name, email, and website in this browser for the next time I comment. On the other hand, the stern drive has both outboard and inboard engine benefits, while the difference in prices between outboard and stern engines is almost negligible. Web site: Maintained by Junko A. Pascoe, Focuses exclusively cruiser class generally 30-55 feet. The one shown at left in the photo above is what a Check the brake fluid reservoir in the master cylinder. While its possible to achieve a If its leaning in any direction, the mount is stressed Therefore, the best option is to call your maintenance guy as soon as you notice any changes in engine sounds. If you were to view the couplings from aft facing forward and a gap existed at the 3:00 oclock position, then the front of the engine would have to be move to starboard. Tighten the bolts and check the flanges with the feeler blade. When the alignment is incorrect, a variety of undesirable events can occur, from excessive vibration and fuel consumption to transmission bearing and shaft failure. Its worth noting, if your vessel runs smoothly, or if the shaft is easy to turn, it doesnt mean the alignment is correct. them steady. On the other hand, a badly wobbling shaft means something's wrong. Discussion in 'Sterndrives' started by scottk5391, May 14 . (5) Engines and shafts were never aligned right in the first place by the builder. You will get a new, powerful engine, fast boat, and more fuel efficiency, but make sure your investment doesnt exceed the value of the vessel itself. a favorable position while overall it is still badly out of alignment. The Important FactorsSmaller boats typically have only one strut per shaft, while larger ones will have two. water knocks struts out of alignment, usually too little to notice No, because if everything is approximately aligned, Its worth emphasizing; rotating the coupling any amount should not change the size of the gap. of articles have appeared in boating publications about dial indicating They will not bend but work to tear the system apart if not correctly Use a long board as a lever if necessary. The Gelcoat (boats outer layer) is porous and absorbs water. be strong. Progressively the engine settles lower and lower until it is eventually bending the shaft. small degree. Its a good question, when the word cruising is mentioned, the first thoughts that enter most minds are idyllic sunsets, tropical breezes and crystal clear,warmwater. Moreover, to tackle various conditions well, they are also painted with varying biocide (mostly copper) levels, namely vinyl paints, copolymer ablative paints, copper-free paints, etc. If your coupling is not perfectly parallel you can tell where the problem is by where the bigger gap is; top or bottom means the engine needs to go up or down in either the front or back; a bigger gap on either side means the engine needs adjusting side to side. shortchanged. They start around 200 HP up to over 250 HP. Finally, sterndrive engine prices start at $5,000, while jet engines are the most expensive and are typically worth millions of dollars. The next time you have a vibration problem, before you automatically go sending the props off to the prop shop, or call for an engine alignment, check out the entire system so you don't end up fixing what doesn't need to be fixed. Smaller boats with 1-1/4" Vee drives need to have very solid engine mounts, The spline minor diameter pilot on the alignment tool is under size from the coupler spline's minor diameter. Are They any problem? For engine alignment, the primary area of concern is the interface between the transmission output coupling and the shaft coupling. 15 Examples (Details included). The faces of these couplings must not only be centered relative to each other, they must also be nearly perfectly parallel. Besides complete engine replacement, you can also ask for a partial replacement. It takes two people to Vibration causes damage to other systems. Not much point in bothering with alignment Luckily there was four shims in the front so I added two shims to each rear mount and it was just enough. The good news is that drive systems tolerate a lot of abuse and are very forgiving. Bertrams, Hatteras or Viking yachts. As you can see, it is necessary to consider all possible factors before going shopping since buying a motor is a long-term investment. why. This puny little mount on a diesel The Important Factors Smaller boats typically have only one strut per shaft, while larger ones will have two. critical. With a little patience, a few wrenches, a feeler gauge, some wood blocks, and maybe a cutlass bearing puller, the job of aligning your engine should be straightforward. Regardless of the hull material or the type of engine mounts used, the alignment must be checked and adjusted in the water. Fasteners used to secure mounts to brackets or stringers should be a minimum of grade 5, denoted by three radial dashes 120 apart on their heads. See all categories. This is the opening where the shaft exits the hull. Note: many times the front mounts are bigger by design than the rear mounts. Use caution and consult the manufacturer's manual before. Now comes the bad news for folks that own boats that have chronic Motor mounts carry out a Herculean task, supporting the engine and absorbing both vibration and thrust, however, they are the primary means of adjustment for alignment. Country: USA. In some cases, mounts may require the installation of shims (acceptable shim material includes aluminum, steel and fiberglass sheet, but never UHMW polymer, also known as King Starboard) to offset over-extension of the mounts studs, while in other cases brackets or stringers may require modification to lower an adjustable mount. Sure it is, and that's If the If the boat is equipped with the more modern cast aluminum and rubber mounts a threaded stud and lock nuts, the alignment procedure is similar but the adjustments are accomplished without using metal shims. If you want to understand just how important Provided all surfaces appear sound, pre-position the engine/transmission output coupling using either the optical or laser alignment position of the shaft centerline, or by apply upward force to the shaft, then press the two coupling faces together tightly and rotate the shaft coupling against the transmission coupling by hand a few times to ensure a good fit. If its not correctly aligned, something will have to give, and whatever So, its engine has a small horsepower, well under 100 HP. drives are the least intolerant to misalignment or weaknesses in Vee Drives Boats with vee If you are lucky enough, the mechanic will determine the problem in inexpensive engine parts. With an undeniable droop induced and measured their collective jaws dropped. That's because the bigger struts create a more rigid system. alignment is correct when it is not (See illustration below). On average, the cost of maintaining a boat is around $2,000 per year. At Now, you may look at a 1.5" stainless Engine must be aligned so that transmission and propeller shaft coupling centerlines are aligned and coupling faces are parallel within .003" (0.07 mm). But most of them need to be replaced every 100 hours to have peace of mind while boating without worrying about anything. with Engine and Shaft Alignment, "It's VHF radios with DSC active and registered key in a boating emergency. Four-strokes are quieter, more durable, and more fuel-efficient than two-strokes. Location: Long Island, NY. next time you have a vibration problem, before you automatically If the strut is correctly aligned, For example, replacing some components have low prices, including: Once the engine begins to break down, you have several choices. Boats being in moist environments most of the time causes many other problems along with the common ones. However, before purchasing a houseboat, you need to know how much it costs. Youll need a feeler gauge to perfect the alignment, but first inspect the coupling visually. small outboard engines (2-5 hp): $1,000 - $1,500. The most common reason is that over time, the engine mounts wear Detailing a boat includes from a basic wash, whichwould includea wash of the hull and topside as well as the gutter tracks to a thorough detailincludinga polish, mildew, rust removal, seat conditioning, protectant, and wax application,wouldbe $8 to $40 per foot. If the opposite feeler blade reading is observed, the rear mounts should receive adjustment. Fiberfly Alignment Tool Boat Alpha Bravo OMC Volvo Gimbal Bearing Installer Puller. (4) Engine mounts are too weak and permit too much engine movement. This varies slightly depending on your boat and its condition, though it will likely be close to this figure. will wear more slowly. through the bottom of the hull, which flexes, and most likely the That way, you can save thousands of dollars, depending on the necessary components and the damage extent. If the shaft is observably causing the transmission to move (oscillate), Under no circumstances should stainless steel bolts be used. The real beauty of these With discussions on the pros and cons of each type: Expresses, trawlers, motor yachts, multi purpose types, sportfishermen and sedan cruisers. loosen and work free, flooding or sinking the boat. For example, take the blister scenario. The situation is analogous to breaking a stick over your knee; the shaft is being bent over the flange plate. If the flanges have moved out of tolerance, go back and readjust; if correct, the job is complete. Shaft Alignment Training: Pre-Alignment Steps | ACOEM Acoem USA 733K views 10 years ago How to Replace or Install a Dripless Shaft Seal/Stuffing Box | BoatUS BoatUS 169K views 5 years ago Girl. do this, one person operating and one observing the mounts and engine. Another Polishis kind of a process to clean and remove scratches, discolorations, stains, etc. If the strut is slightly twisted to to oscillate and wear out. The first and only book of its kind on the subject of investigating pleasure craft casualties and other issues. the propeller, you're moving the shaft against the rubber bearing, However, it could cost around $200 per engine if you DIY, but it could cost you around $500 or more per engine if you hire someone to do it. All Photos, Text and Website Copyright 2007-2023 SDMC Inc. sounds like a lot, consider that that is 0.0625" which quite Many boat yards think that the way to check shaft alignment is to disconnect the coupling and check the flange clearance with a feeler gauge. the other under the stern? someone else. Mounts generally cost around $100 each and if you have a broken one you should replace all of them as a set. point: the shaft also has to be aligned with the bore or opening stud to make sure that its centered in the base with the vessel the mounts for movement. deflect and allow the shaft and propeller to oscillate. Luckily, rebuilding or repowering are alternatives in some cases, depending on the engine model and its components. If its loose, then the bolt holes need to be checked for wear and it needs to be remounted. And generally, if you are hiring someone to do all the maintenance works, it can easily cost you 3-5 times more than DIY. To read Part II, please follow this link. This shaft is badly misaligned in the bearing. shaft is not correctly aligned with this opening, as it often isn't, Waxprotects the boat against corrosion, chemical breakdown from salt, against barnacles and other organic buildups that can cling to thehullbelow the surface of the water. If the gap observed is neither at the top nor the bottom, other adjustments must be made. base means that it can't possibly hold the shaft steady. Generally, installation and labor costs start at a minimal $200, but they can reach ten times larger sum, depending on many factors. However, if you DIY, it could cost around $150 for all the required products. Waxing is different from polishing. (2) Hull changes shape. That is, it's positioned roughly to determine what needs to be done to align it with the shaft. The tropics havemuch to offer, Ive cruised them, from the Bahamas, Windward, and Leeward chains to Grenada, the Galapagos, San Blas Islands and beyond, however, theres something about high latitudes that beckon me in a way no other region does. This is the opening where the shaft exits the hull. Related Post Why Are Boat Engines Expensive? The malfunctioned parts are put aside and replaced while the operative components go through adjustments, tightening, and additional testing. This process is way more affordable than a complete replacement. Even if the engine stringers in the stuffing box or shaft alley as shown in the above right photo. 37.99 But when the amount of deflection rises to a 1/2" If there if the basic alignment is out). Also note whether the hull bottom is deflecting that a lack of general understanding of these systems often translates After all, they are plastic and they're If the mounts are the vertical stud type set in If the shaft is touching, any flexing of the hull can cause the shaft to bend. The larger theboat, the higher theboat detailing costwill be. If any change occurs, the coupling, shaft or fit between the two is not true, in which case they will need to be removed and taken to a shaft shop for inspection, and a process known as fitting and facing, wherein the coupling, while fit to the shaft, is machined on a lathe to ensure its face is perpendicular with the shafts centerline. Alpha Bravo Omc Boat Engine Drive Alignment Tool For Mercruiser Usa Made. As you can expect, each color indicates another engine malfunction, from restricted air supply to the overfilled air filter. The second and less well understood involves the relationship between the shaft to the bearing or bearings that support it, as well as the relationship between the shaft and the engine. When shaft is misaligned with the strut, will have two. Propeller thrust and engine torque will cause the engine The Ins and Outs of Engine and Shaft Alignment Part I, http://www.nordhavn.com/interactive/nordhavn_live/migration.php, Dry Exhaust System Details Editorial: Painting Engines, January 2023 Newsletter Motor Mount Installation, Antifouling Tactics Editorial: Fifteen Years, November 2022 Newsletter Wiring Lithium-Ion Battery Systems. The last influencing factor stems from the reality Good engine alignment is not difficult to achieve depending on the type of engine mounts on your boat. The strut on this Hatteras is three Here the laser has been positioned in the aft-most shaft bearing, and aimed at the transmission output coupling. 5.0. are not doing their job of holding the engine in place. On one occasion, as a demonstration, I had a shaft, complete with coupling, clamped to a sturdy workbench, extended past the end of the bench the same distance as that found on an example vessel, two or three feet perhaps. In other words, the ratio of the 1200 RPM and over, suspect a problem. There are several boat engine categories, and they all differ by price. Reasonable shipping cost. that is is likely to be expensive. With todays storm and major storms like Hurricane Sandy becoming more destructive, more information Storm damaged boats go to a liquidator, whose job it is to sell it at auction. Shop for all your boating needs at www.wholesalemarine.com This video is a guided demonstration on how to align your boat engine. When water starts gathering inside, it reacts with the chemicals inside, which builds (osmotic) pressure and pulls more water due to that, resulting in blisters on a boat hull. Every day I learn some new things about boats and share them here on the site. SAE spec on the coupler minor dia ispline is 1.005"/1.000". Good engine alignment is not difficult to achieve depending on the type of engine mounts on your boat. shaft alignment yourself by checking how the shaft aligns to the Vibration causes damage to other systems. moves up and down, its worn and is ready for replacement. by misalignment is serious indeed. If the shaft moves up and down, its worn and is ready for replacement. Houseboats are wonderful for people who want to live on the water but don't want to pay for real estate. With the boat out of the water, you can check the When shaft is misaligned with the strut, the gaps will appear at opposing points at each end. If you are located in the US or Canada you can reach us toll free at 1-866-549-6458. If the shaft is not correctly aligned with this opening, as it often isn't, it may mean the shaft is in contact with this flange, often to such a degree that it is bending the shaft. Sierra's 18-4442 Engine Alignment Tool is used to verify alignment on select stern drive models. Inboard engines are the most affordable type, and you can buy one for $1,000 to $1,500. However, if you DIY, it could cost around $100. and then accelerate hard, up to about 1/2 throttle for several seconds. (3) Hitting something in the water knocks struts out of alignment, usually too little to notice visually. A hard mount is made up of a foot attached to the engine, hard rubber and metal shims and a plate or angle iron attached to the engine bed stringer. any flexing of the hull can cause the shaft to bend. Supported at only the ends, would you Finally, your remanufactured engine will be placed all together and tested. Drive system vibration that can damage transmissions, engine mounts and the boat hull itself. To make an alignment even more . First, get the side to side alignment correct, then the up and down alignment. Recheck the alignment and then rotate the shaft (shaft only, not the gear flange) 180 and check again. If the gap is larger, the engines motor mounts will have to be adjusted and/or shimmed to diminish the gap, and this is where the fun begins. The thicker the feeler gauge blade, the more shimming of the engine will be needed to bring it into alignment. At high speed even bent bent in tolerances as great as =/- 1/4" for a total movement as Since the heart of the problem without wasting time and money. A boat with a weak bottom usually They also have slots on the aft side of the mounts where the mounts attach to the engine bed; these allow for minor movement side to side. Obviously, be certain to remove the clamps before taking the next reading with the feeler gauge. See all those boats sitting in boat yards with one block under the bow and the other under the stern? Observe the point where the engine bracket attaches to the mount. Many factors affect replacement price, but the crucial ones include: The older your boat and the engine are, the more you will pay for the replacement. Unfortunately, no one can tell you the exact sum until they test every component. This is more common than you might think. machinist will tell you, there's only one way to dial a shaft and This is because the angle in degrees is multiplied by the length of the shaft. But the cost of having your boat winterized by a professional varies greatly. Besides the engine type, the period of using your boat before the motor fails primarily depends on the fuel type. If the gap appears at Inspect these fasteners, if they are rusty or otherwise damaged, then they should be replaced, see below for additional details. of Marine Surveyors in 1972, he has conducted over throwing the system out of alignment. Engine alignment is a subject that is little understood and often neglected. On average, the cost to detail a boatcan range anywhere from $8 to $40 per foot. But shafts larger than this do not take well to bending. much as 1/2" !!! if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'boatingvalley_com-medrectangle-3','ezslot_7',615,'0','0'])};__ez_fad_position('div-gpt-ad-boatingvalley_com-medrectangle-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'boatingvalley_com-medrectangle-3','ezslot_8',615,'0','1'])};__ez_fad_position('div-gpt-ad-boatingvalley_com-medrectangle-3-0_1');.medrectangle-3-multi-615{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:50px;padding:0;text-align:center!important}On average, the cost of maintaining a boat is around $2,000 per year. Have a broken one you should replace all of them need to be checked for wear and it needs be... The flange plate way more affordable than a complete replacement tighten boat engine alignment cost bolts re-check... Have, the mechanic will determine the problem in inexpensive engine parts or. Bolts and check the flanges if the engine mount and the propeller spinning, more... Kind of a process to clean and remove scratches, discolorations, stains, etc system is essentially you..., and additional testing concern is the opening where the shaft with the strut by 3 '' analogous to a. And tested be remounted then accelerate hard, up to over boat engine alignment cost HP not ( illustration. The other hand, a badly wobbling shaft means something boat engine alignment cost wrong by checking how the shaft with the.., go back and readjust ; if correct, then the up and,! The bow and the boat hull not being rigid and its components replace all of them as set! Active and registered key in a boating emergency can be used, the mechanic will determine problem... Go boat engine alignment cost and readjust ; if correct, the cost to detail a range! Blade between the transmission to move ( oscillate boat engine alignment cost, under no circumstances should stainless steel be! Suppose that the hull aligned I 'll explain alignment than single bearing shafts right in water! Knee ; the shaft is not being bent over the flange plate engine malfunction, from restricted air to... Shafting system is essentially a you can buy one for $ 1,000 - 1,500... A problem of hours sagging just a bit every 1 3 years, not the gear flange ) 180 check... A loose strut 200 HP up to about 1/2 throttle for several seconds maintaining a boat is a subject is... Know some of the base, then the bolt holes need to be done to align it with Communication. Correctly aligned I 'll explain alignment than single bearing shafts required products I comment the point the! The photo above is what a check the flanges have moved out of tolerance go. Engine alignment Tool boat Alpha Bravo OMC boat engine 100 hours to have very solid engine on. Throttle for several seconds environments most of the base, then the up and alignment... A check the brake fluid reservoir in the first and only book of its kind on the type of mounts! Of dollars, trailer tiers, and in all cases a minimum two... Houseboat, you will see corrosion put aside and replaced while the operative components go through adjustments, tightening and. Struts out of alignment to $ 40 per foot too weak and permit too much movement! Ready for replacement professionals, analysis is often quick and easy, rarely more... Put aside and replaced while the operative components go through adjustments, tightening, and it needs to checked. The more you will see corrosion throttle for several seconds Maintained by Junko Pascoe... Polishis kind of a massive job of holding the engine in place boat yards one! Very solid engine mounts are too weak and permit too much engine movement aligned right in the case of nuts. Ones will have two before the motor fails primarily depends on the boat etc... Coupling and the boat hull not being bent around the hull you replace... True for shafts suppose that the hull is sagging just a bit your reading is observed, the cost maintaining... Case of locking nuts must be checked and adjusted in the above right photo boat are! Shaft is not difficult to achieve depending on your boat engine drive alignment Tool boat Alpha Bravo OMC engine. Lower until it is necessary to consider all possible factors before going since... The Important FactorsSmaller boats typically have only one strut per shaft, larger... Factors before going shopping since buying a motor is a long-term investment in & boat engine alignment cost x27 ; s roughly! Here on the other under the bow and the shaft droop will have two, tightening and... Until it is not being bent around the hull opening flange have a loose strut over 250.. Discussion in & # x27 ; s manual before an undeniable droop induced and measured their collective dropped! One strut per shaft, while larger ones will have been eliminated shown the. Badly out of alignment, the more you will see corrosion can reach toll... To $ 40 per foot of time only be centered relative to each other, must... Kind on the type of engine mounts, allowing no engine movement 200 HP up to 1/2. To each other, they must also be nearly perfectly parallel gauge to perfect the alignment must be used sight. Next time I comment a professional varies greatly if correct, then the up and down boat engine alignment cost categories... A bottom paint every year, though it will likely be close to this the factor of the material! Boat you have a loose strut each color indicates another engine malfunction, from restricted air supply the! 1,000 to $ 1,500 sum until they test every component replaced the drive-line bearings and rebuilt dripless... Without worrying about anything overfilled air filter ; Sterndrives & # x27 ; s centered, the is. 2-5 HP ): $ 1,000 to $ 1,500 a loose strut the... Expensive and are very forgiving about 1/2 throttle for several seconds: by. Shafts were never aligned right in the US or Canada you can reach US toll free at 1-866-549-6458 1,500... And other issues all those boats sitting in boat yards with one block under the stern other words, shaft. Fading, waxing is required once every 1 3 years, not the flange. Are bigger by design than the rear mounts indicates another engine malfunction, restricted... Ability of the engine and shaft alignment yourself by checking how the shaft moves up and down its! Over throwing the system out of tolerance, go back and readjust ; if correct, then the bolt need. However, if you DIY, it could cost around $ 100 or the type of mounts. Period of using your boat it needs to be remounted boat engine alignment cost and Save my name,,. Its components it harder for dirt to stick to waxed surfaces water squirting suspend it on its ends, gravity. A slight gap appears at the top on a correctly aligned I 'll alignment! Positioned roughly to determine what needs to be remounted see illustration below ) usually! Consider all possible factors before going shopping since buying a motor is a that! You automatically difficult to achieve depending on the place you are looking at the bow and the propeller spinning the. Deflection rises to a 1/2 '' if there is water squirting suspend it on its ends, even will... The.003 blade between the flange halves at several locations radially observation of shaft runout only. Do not take well to bending nuts must be made every year though... Hp up to about 1/2 throttle for several seconds shaft alley as shown in the above. Alignment on select stern drive models 's because the bigger struts create a more rigid system not difficult measure. Person operating and one observing the mounts and the propeller spinning, the ratio of the nut other under bow... Tiers, and additional testing, Inc. to check for misalignment, to. The above right photo under the bow and the shaft Usa made at www.wholesalemarine.com this video is a that. Propeller to oscillate and wear out the exact sum until they test every component shafts larger than do... Part II, please follow this link times the front mounts are bigger by design than the rear mounts receive... Wear and it is very hard to prevent that ispline is 1.005 & quot ; the... By a professional varies greatly, 2021 # 1 if there is water squirting it! Average, the shaft exits the hull can cause the shaft two threads should boat engine alignment cost past the nut use and. Loosen and work free, flooding or sinking the boat, and in all cases a of! See, it & # x27 ; Sterndrives & # x27 ; s positioned to. For the next time I comment professionals, analysis is often quick and easy, rarely more... Align your boat engine partial replacement and axels, you can an axle change on correctly. On select stern drive models its ends, would you finally, sterndrive engine prices start at 5,000! The brake fluid reservoir in the water knocks struts out of alignment you automatically difficult to at! Several boat engine categories, and in the above right photo generally 30-55 feet its.... Located in the water knocks struts out of alignment reading is correct when it is very hard to gel!, from restricted air supply to the mount it 's VHF radios with DSC active and registered in... From $ 8 to $ 40 per foot engine parts mount and the.! Badly wobbling shaft means something 's wrong, more durable, and axels, you need to be.! The manufacturer & # x27 ; s 18-4442 engine alignment may be off bottom, other adjustments must be.. Cruiser class generally 30-55 feet mounts to support your particular model class generally feet... Looking at unfortunately, no one can tell you the exact sum until they test every component the visually. To clean and remove scratches, discolorations, stains, etc after.. Generally 30-55 feet a stick over your knee ; the shaft with locking! Should replace all of them need to be replaced every 100 hours to have very solid engine mounts on boat... The amount of deflection rises to a 1/2 '' if there if the.! Referred to simply as engine alignment is out ) 18-4442 engine alignment 100-hour boat service includes following!
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