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Originally Posted by blue thunder
(Post 3918325)
When he has the drive off he needs to inspect the splines on the coupler. If it has aluminum splines it is most likely toasted. At least that has been my experience with out of alignment engines.
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Originally Posted by US1 Fountain
(Post 3918331)
Possibly the mount was mounted too low from the get go requiring the motor to be adjusted high. The upper nut is a nylock. It doesn't turn freely.
Once it's rechcked and done, make note of where the upper nuts are for future reference. I hope my alignment was not bad enough to affect the splines. That would suck. I figured if it was that bad I would have heard it either in the coupler or the gimble bearing. Of course when you have wide open exhaust that dumps 12 inches from your gimble assembly, it may be a bit hard to hear. Doh! Thanks for all the inputs! I will update when I get back. |
Followup: Splines were nice and squared. No sharpness or wear at all. Gimble and coupler were like-new. Engine and drive were still perfectly aligned. No sign of water intrusion, wear or any other issues. Tightened up the motor mount and all was good.
Ready to put in the water and on the lift Friday! Thanks all! |
Originally Posted by US1 Fountain
(Post 3918318)
You did it wrong!
The top nut never moves, The lower nut always back down, throwing the alignment out. You should have turned the lower nut, raising the motor until it was tight against the upper nut. By moving the upper nut, you have changed the alignment outta wack. Gotta put an alignment tool in there and get it back to par. Next time, don't move the upper nut and you'll be pretty much good to go. Whenever you see a gap between the upper nut and the mount, you know the lower nut has backed off |
Originally Posted by Redhook98
(Post 3918230)
they went from a 454 to the 496HO
If you compare these 2 pics, you will see that there is an extra locknut in the 454 assembly. Notice part 16 in the second pic. 496 HO http://www.mercruiserparts.com/Show_...ywheel+Housing 454 mag http://www.mercruiserparts.com/Show_...ywheel+Housing |
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