Shaft Alignment |
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OldSchoolBlue84
Gold Member Joined: December-02-2012 Location: Valparaiso, IN Status: Offline Points: 814 |
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Chris, the current motor mounts, is the engine centered in between them? Maybe the previous owner made some adjustments and now since the drive shaft is centered, your having your engine/coupler misalignment. Just a thought.
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Kostas
1984 Ski Nautique 2001 |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Chris,
That's quite a distance to move the engine. Check your strut location. Measure from the chine on each side to the shaft to see if it's centered. Does it at all look bent or leaning towards starboard? |
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Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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Here is the result of centering the shaft in the log.
It looks like the entire engine needs to shuffle laterally to port. Would you guys agree? This is the pic of the current configuration attached to the coupler. You can see the shaft is on the right side of the log by about 1/8". I'm planning to tackle the engine mounts tomorrow and I'd be curious to see if you guys agree with the assessment before i go for it. There is one bolt on the starboard / aft/ lower trans attach point that is basically impossible to get a tool on. Any ideas for that bad boy? Chris |
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1999 Ski Nautique 196
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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Now we're talking experience!
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OldSchoolBlue84
Gold Member Joined: December-02-2012 Location: Valparaiso, IN Status: Offline Points: 814 |
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I used mineral spirit. Soaked the strut base and bolts in a pan. Worked like a charm! |
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Kostas
1984 Ski Nautique 2001 |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Chris,
I sure wouldn't worry about scratching the gel. It's going to get covered up with the strut base. Scrape and sand the old bedding compound off. Chances are it's not a polyurethane so it should come off real easy. |
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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Chris I found this on another site:
Re: Clean-up of 3M 4200 and 5200 This is the proper product. 3M 08984 General purpose adhesive cleaner. http://www.repaintsupply.com/pd_general_purpose.cfm# Buy it at a automotive paint store, Don't buy it at West Marine. You will save $7 to $8 on a qt. A qt will last a long time. It has a little spout that goes on the can. |
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Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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What is the preferred method of removing old 4200 without scratching the gel in the strut port?
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1999 Ski Nautique 196
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Chris,
Yes, 4200 is a good choice. |
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Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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thanks guys. should I 4200 the strut plate when doing a final mount?
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1999 Ski Nautique 196
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Chris,
All I'd like to add to the great advice above is the shaft doesn't need to be perfectly centered in the log. If I had to give you a figure, I'd say get it within a 1/16". Then, if the strut and log isn't kicked port or starboard, the engine will end up sitting pretty centered. |
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Hey Chris, sorry to hear of your woes.
Good advice above. Best to loosen the strut & get shaft centered in log. If you are applying pressure it is in a bind. I would remove 3 of the 4 screws & then see how much you need to twist it to get shaft centered. You may have to egg out the holes a little. If the holes are misaligned more than 1/16 in, I would get the strut straightened. Get a jack under the manifold & remove each adjuster, maybe 1 at a time, & get them to move freely on the bench. Some one recently posted a technique of spanning the gunnels with boards & using that as a support, Probably safer than jacking the manifold. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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So how does one align a shaft while on the boat?
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1999 Ski Nautique 196
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SWANY
Senior Member Joined: August-12-2014 Location: batavia Status: Offline Points: 384 |
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Number 1-Alignment all starts at the log. If the shaft isn't center in the log, the strut needs to be loosened and moved or shimmed to make the shaft "happy" in the log. Think of it as it all starts in the middle of everything.
Number 2- once you get number one good then put the nuts on, but leave a measurable gap with the feeler gauge. Can be whatever on your starting side across from that side can't/shouldn't be more or less than .03 more than your starting number. Number 3- I'm not expert but I'll I can say is go work out more and pull harder. Good luck. A lot of reading in old threads helped me tons |
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fanofccfan
Platinum Member Joined: December-13-2009 Location: North Bend NE Status: Offline Points: 1726 |
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I removed the adjustment part from the eng/tranny to be able to work on the shop table. Mine took heat from torch and petes home brew to get them to move. I will say when I started I didn't think they were worthy of salvage. A little time proved otherwise. It also made the alignment much easier.
Can the strut be aligned first so as to make it fit the thru hull fitting better? |
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OldSchoolBlue84
Gold Member Joined: December-02-2012 Location: Valparaiso, IN Status: Offline Points: 814 |
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Seeing deja vu as I am currntly doing the exact same thing with my new ARE The drive shaft should be centered in the log naturally without any pressure. You may have a slightly bent strut. The strut could be tweaked while still attached to the boat but probably frown upon on how to achieve straightness .... . Good luck |
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Kostas
1984 Ski Nautique 2001 |
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Frankenotter
Platinum Member Joined: August-26-2012 Location: Milwaukee Status: Offline Points: 1072 |
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Ok, so I was falsely hoping that my new shaft would arrive and it would just drop into place with no fuss. That's not the case.
I removed the rudder to get it out of the way. With that gone, the shaft sits to the port side of the log naturally. I can move it starboard and center it inside the log with a little pressure. If I push it up to the trans coupler, I can see that the port side has more than .003" gap from the feeler gauge. So, I have a couple questions for tomorrow's attempt at getting this aligned. 1. If it takes pressure to center the shaft in the log, does that mean the strut is bent? 2. Is the alignment based on the results of putting the couplers together without the nuts and reading the gap, or is it based on the shaft resting naturally in the log? (does that make sense? 3. How the hell do I move this engine? I tried loosening the lock nuts, kroil, a bottle jack, prybar, and praying. I cant get the thing to budge. Ive done everything short of pulling the engine and I cant get it to move. Sigh.......... |
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1999 Ski Nautique 196
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