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Is this engine mount done for? |
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nate2001SN 
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Joined: August-03-2014 Location: Wichita, KS Status: Offline Points: 14 |
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 Topic: Is this engine mount done for?Posted: August-07-2014 at 1:42am |
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Pulled my transmission and jacked up the rear of the engine in the process. I loosened the pinch bolts on the engine mounts to allow the engine to rotate up, but it appears one side didn't free up and rotate.
Do I need to replace it? I'm kinda thinking it will straighten back out when set down--obviously will need to check alignment though. The bent one--  The good one 
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SNobsessed
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Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Posted: August-07-2014 at 9:38am |
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It's fine - the rubber is doing the flexing. Good luck on the tranny rebuild. Make sure & do an accurate shaft alignment when you reinstall.
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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
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Joined: July-18-2008 Location: Pittsburgh, Pa Status: Offline Points: 4127 |
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Posted: August-07-2014 at 9:44am |
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You loosened the nut but I can see you didn’t tap the pinch bolt in. Most of the time you have to give the bolt a little tap to move the pinch bolt in to release the mount stud.
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nate2001SN
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Posted: August-09-2014 at 11:16am |
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SNobsessed thanks, I sent the transmission off to Fantastic Finish Marine and have heard nothing about good things from them so I'm just looking forward to getting everything back together now.
gun-driver I guess I'm not quite following you on tapping the pinch bolt. Unless I'm confused on what the pinch bolt is (which I probably am) I thought it was the threaded stud in the block where the horizontal shaft to the engine mount goes in (can barely see it behind the spark plug wires in the pics). Or is it the larger nut on the top of the vertical engine mount stud... because I only loosed those when I saw the one was bending/flexing. So that may have been my problem to begin with if that's the case |
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mark c
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Joined: May-09-2012 Location: Massachusetts Status: Offline Points: 534 |
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Posted: August-09-2014 at 11:39am |
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It's the horizontal bolt in the mount attached to the block. After you loosen it you need to tap it a few times with a hammer to expand the bore where the horizontal eye bolt (heim joint) is inserted into. That allows the eye bolt to rotate as you jack one end of the motor up. It's frozen in the bore and didn't rotate and that's why the outer bushing bolt got twisted.
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nate2001SN
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Posted: August-09-2014 at 12:10pm |
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Gotcha, that was my problem then. Thanks a bunch.
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gun-driver
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Posted: August-09-2014 at 1:14pm |
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If you remove the pinch bolt and clean it up then apply some anti seize and make sure the pineal type mount rotates and slides in and out freely it makes it a whole lot easier to do a shaft alignment. Which by the way is in your near future when the transmission comes back.
Now would also be a good time to tear down the rear mounts clean and anti-seize, it sure makes alignment jobs easier when the mounts move easily. |
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nate2001SN
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Posted: August-09-2014 at 2:34pm |
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Awesome, thanks for the advise. I'm not really lookin forward to alignment, but I do want to have everything ready to go for when I get the transmission back. Can't wait to get back on the water.
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nate2001SN
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Posted: August-09-2014 at 2:37pm |
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My cutlass bushing was suspect also so I'm replacing that and re-packing the shaft seal and rudder while I have everything apart. Hopefully will all run out nice and smooth when I get it back together.
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8122pbrainard
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Posted: August-09-2014 at 2:37pm |
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It's really easy as long as you understand the concept of keeping the shaft straight. Have you looked at the video?? |
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nate2001SN
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Posted: August-09-2014 at 3:29pm |
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I actually haven't yet, but I've seen several posts referencing it. I'll definitely watch it first though.
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8122pbrainard
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Posted: August-09-2014 at 6:51pm |
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Go to the video section and you will find the alignment 101.
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KRoundy
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Posted: August-09-2014 at 8:53pm |
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+1 Sticky mounts make the adjustments very frustrating. |
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Previous: 1993 Electric Blue/Charcoal Ski Nautique
Current: 2016 Ski Nautique 200 Open Bow |
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nate2001SN
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Posted: September-10-2014 at 9:22pm |
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Thought I'd follow up. After pulling the rear mounts apart for cleaning and watching the alignment video it was pretty easy to understand the alignment process. The front right mount did take some extra persuading to free up, even with the pinch bolt properly released.
I was kind of surprised that the engine is pushed nearly all the way to the right on the mounts (I was dumb and never looked to see where it was prior to pulling the tranny). But the shaft/coupler is properly aligned and the boat pulls hard with no vibrations. The Transmission was a little late getting back to me which set me back a couple weeks for when I was able to install it due to other obligations, but I couldn't be happier with the rebuild and am more than happy to be back on the water. |
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TRBenj
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Posted: September-10-2014 at 9:54pm |
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It is not uncommon for either stringers or log/strut to be placed just crooked enough from the factory to require a good portion of the mounts range... But I assume that you aligned the engine to the shaft where the shaft spin freely in the bore of the strut? If not, you just dialed in a bunch of misalignment.
I am also assuming that you checked to see that the shaft was fairly concentric to the log when spinning freely in the strut? Misalignment will quell vibration, not cause (or exacerbate) it. |
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nate2001SN
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Posted: September-10-2014 at 11:22pm |
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Yep, I did make sure it was concentric and spinning freely. After buttoning everything up it still spins freely as well. Good to know about the vibrations though, I just assumed a misaligned boat would vibrate badly.
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gun-driver
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Posted: September-11-2014 at 12:23pm |
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I had a similar problem with my '95 after my wife had her little episode with the rocks. Every thing lined up right but the motor was shifted all the way right. I found that the shaft was not in line with the rudder it was off centered when looked at from behind the rudder. Some adjustment with the strut got everything in line. So what I'm saying is to look at the shaft from the rear and see if it straight down the center line of the boat. You should be able to look straight down the rudder, shaft end, strut, Skaggs. Hope that makes sense. |
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Hollywood
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Posted: September-11-2014 at 12:42pm |
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Great ***************ing hair. 
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SNobsessed
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Posted: September-11-2014 at 11:53pm |
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If the prop shaft is centered in the log, that's as good as it gets for strut position.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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missicbc
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Posted: October-17-2014 at 9:29am |
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bolt a little tap to move the pinch bolt in to release the mount stud. Fut 15 Coins
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: October-17-2014 at 9:38am |
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Correct. Plus 1 |
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nate2001SN wrote: