allignment question |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Posted: June-15-2013 at 10:26pm |
Guys , I had the boat in the water this afternoon. Previously had to remove and install new ARE shaft. New shaft packing. Install a strainer that was never in the boat. Drop the rudder and reinstall. Lap a brand new ACME prop. Do a alignment. Remove and install new strut bearings. Retap set screws in strut. It took some time but WOW what a difference. I could not run fast very much due to to debris in the river but a few boats went ahead of me and I got behind them and did some hole shots. Everything worked like it should and it made all the work worthwhile. Thanks again for all the help. Tony.
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Yes.
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Tony - Did you get my PM regarding the Vesconite bushings? Did you get them to loosen up?
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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gun-driver
Grand Poobah Joined: July-18-2008 Location: Pittsburgh, Pa Status: Offline Points: 4127 |
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Just make sure to remove your clamps and jacks before the final alignment check to make sure you weren't moving the rubber mount instead of the motor.
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GlassSeeker
Grand Poobah Joined: November-26-2008 Location: Elk Grove, CA. Status: Offline Points: 2421 |
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good job of putting the tips to work. looks like you got it down.
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This is the life
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Test
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Thanks to all of you for your comments here on this post. I got out today in the garage and tried your suggestions and it all went great. At first I was thinking this would be tough. it was very simple really. I just needed the help from you guys to get me going in the right direction. Thanks again very much. I used a 8 inch c clamp in the front and the jack out of my GMC truck. I took it slow and really didn't move it too far but enough to make a nice alignment. Now on to new strut bearings and then to lap a new prop. I decided to try the Vesconite bearings and a Acme 1422 prop. I'm really looking forward to getting it back in the water. Thanks again! Tony |
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gun-driver
Grand Poobah Joined: July-18-2008 Location: Pittsburgh, Pa Status: Offline Points: 4127 |
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Put the nut back on the rear pinch bolt as you have the front one in your pictures. Tap them down on the back ones, forward or backwards on the front ones depending which way they are oriented.
You wont be able to move the motor until the pinch bolts are loose. Spray some type of lubricant (WD-40 PB Blaster) on the mounts and work the motor back and fourth(from side to side)till it moves freely. On the front mount loosen the top nut (top nut is the lock nut) almost all the way up there is a nut the same size under the mount that is the up and down adjustment for the front mounts. on the rear mounts loosen the large nut (lock nut) several turns. The up/down adjustment is made by turning the square top part to raise and lower the mount. Again here some spray om the rubber parts helps. |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Tim, that's what I was thinking too. I thought if the strut was good maybe the engine and trans never went in the way it should have. It is a repowered 351. Ok now only to get it to move. Thanks guys I'll post pics on how I get it to move. Tony.
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TX Foilhead
Grand Poobah Joined: February-01-2009 Location: Kingsland TX Status: Offline Points: 2076 |
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I will add to Chris's scissor jack comment, if you have one of the Ford jacks that you put the rod in and turn that works and you can turn it by hand. Forgot that I tried that but ended up not needing to use it.
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21184 |
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It's possible the strut is bent but its more probable that you were simply grossly misaligned before. Misalignment will not introduce any vibration.
If the shaft has decent clearance to the log in all directions where it spins freely in the strut, then don't worry about the strut. |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Just a thought.... Looking at the engine and tranny...I would think it very unlikely that the engine moved when I hit something. I say this because when I try to move it , it doesn't want to go. Could it be that my strut is off or bent? I only ask because it ran pretty smooth before I hit something and now with a new shaft it's off. I think when I move the engine and tranny over it will be fine but am I compensating for a bent strut? I'd rather straighten the strut right? Thanks, Tony.
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Tony - if you have a trailer scissors jack, I think that might nest against the tranny case & give it a little push. Go easy!
Another hint I just remembered - tap the ends of the pinch bolts down with a hammer to loosen them up. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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TX Foilhead
Grand Poobah Joined: February-01-2009 Location: Kingsland TX Status: Offline Points: 2076 |
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Nope, I was fortunate enough not to need to use them. I was able to cheat a bit putting the motor I and slid them roughly into place before I put the weigh on them. The couplings were lined up at that point so all that was left was adjusting the distance inbetween them. The Vdrive was different because you're moving coupling that's on the shaft for a DD. Took me a little while to remember that when I was deciding what to move. First time is a PITA, but next time goes much smoother. I had a helper the first time who did the moving while I checks the results, after that I could check and figure out what to move and it was only about a 20 min process
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Thanks for the info. Any ideas on the rear? I think I can get a longer pry bar in there and give it a little more push. I don't need to go far.
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TX Foilhead
Grand Poobah Joined: February-01-2009 Location: Kingsland TX Status: Offline Points: 2076 |
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On the front mounts you can use an 8in C clamp to pull it to the side you need. I'll get a pic up in my thread later tonight or PM me a mobile number and I can send it from the phone.
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Just to make sure.... Front and rear bolts loosened here (both sides)would give Port to Starboard movement right? I loosened them but I think I need a bigger pry bar. Thanks, Tony.
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Tony,
You are very welcome! |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Ok went out to the boat.... Looked harder..... Found the adjustment. Thanks anyway. Tony.
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Ok so I want to " bump" the motor and trans a little to port but can't understand the adjustment on the motor mounts. Sorry but I can understand up and down, but port to starboard kind of confuses me. All I see is the up and down. Can someone explain. I watched Pete's video and it all makes sense but you cant actually see what he is explaining in the video. He says its a "split" piece that will move port to starboard in the rear but I cant see that. Sorry i'm still a noob. 89 Ski Nautique. Thanks, Tony.
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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To find the alignment sweet spot, I just moved the PROP shaft L-R & U-D to find the limits of play & targeted center. (Edit, that was a close one)
Other random tips - Take a pencil & mark the support rods that go into the engine & tranny before you start pushing it sideways. It comes in handy if you need to start over! I use a crowbar to 'bump' it. Loosen all of the pinch screws, otherwise a mount might have to conform to another's adjustment (sorry if this doesn't make sense). When moving either U-D or L-R, make part of the adjustment of the front & also some of it on the rear. If you do it all at the front, it is magnified at the tranny coupler. (Again, hard to explain). Good luck, take your time & stop for a beer if you get frustrated. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21184 |
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In case youre missing it in the above posts, the first step in aligning the powertrain is determining where the shaft spins freely in the strut. Letting it settle under its own weight and forcing it any direction (trying to mate the transmission coupler, etc) are no-no's. It will not find its happy spot "on its own".
Once you find where it spins freely, support it in that location and move the powertrain to match it. If you miss that first, critical step, then whatever you do afterwards doesnt matter and you'll end up with a misaligned shaft. |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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By kicking you mean prying it over with a piece of wood? Not actually kicking. just making sure. i have no problem kicking it right as frustrated as i am right now. Just kidding. Loosen slightly and bump over? or just bump over?
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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I would probably start out kicking the front of the engine to the port a touch, 9 out of 10 times this will cure it, I try not to break the complete engine loose until I attempt kicking the front over. then proceed if that doesn't cure the alignment
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"the things you own will start to own you"
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Once you find that "sweet spot" where the shaft is happy in the cutlass bearing plus pretty centered in the log, then adjust the engine to match. Yes, you most likely will need to adjust all four corners of the engine. Up , down, port and starboard. Keep in mind you are adjusting for both offset (parallelism) and angular alignment.
If you don't find that "happy" spot were the shaft turns freely and is centered in the log, then you need to take a step backwards and do a strut alignment. |
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TX Foilhead
Grand Poobah Joined: February-01-2009 Location: Kingsland TX Status: Offline Points: 2076 |
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It really depends on where you need the engine to go, it take a little playing around with and measuring to figure out the way it moves. Once you get that it's not hard to guide it where you want. I don't care for the rear PCM mounts, with my Crusader I could put a C clamp on each mount and move it easily. Can't do that with the rear PCM mounts. I also noticed that it was easy to move the studs in the bushings instead of the motor. Keep an eye out for that, though I had it a couple of time only to have the bushing move it back to where it was when I released the clamp.
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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So what I'm understanding from the video is that I just adjust the rear bolts port to starboard. The vertical looks right on. That is after I find the "sweet spot"
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TX Foilhead
Grand Poobah Joined: February-01-2009 Location: Kingsland TX Status: Offline Points: 2076 |
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Watch Pete's video, it may or may not sit in the sweet spot in the log. Push it back so the couplings don't touch and see if it spins best there or some where else. Once you figure out where that spot is you migh have to use something to hold it there while you move the engine to that spot. A ratchet strap worked for me. Once the engine is close there was a lip inside my coupling that would keep them close enough without having the strap on while I finished adjusting for the last few .000ths. If I took the coupling further apart the shaft would drop and hit the sides of the log.
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Bones71
Senior Member Joined: March-09-2013 Location: Bettendorf Ia Status: Offline Points: 334 |
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Ok two pics here of new shaft. I thought I would slide it in and see how well it lined up. It looks like I need to slide my transmission to port a little. I can move the shaft over by hand and line it up fine but I thought it should line up on its own if the alignment is right. Right?? What do you guys see? It spins freely when connected but I think it should line up without me pushing it over at all right? Thanks. Bones.
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