Engine Alignment
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=992
Printed Date: December-03-2024 at 2:44pm
Topic: Engine Alignment
Posted By: Guests
Subject: Engine Alignment
Date Posted: November-15-2004 at 7:17pm
Looking for help.
I am original owner of 2001 Ski Nautique. My question is " What is the correct procedure to use when aligning the drive shaft coupling with the transmission coupling. When I unbolt and slide the coupling apart so as to not have the 2 parts contacting each other. The shaft drops down as there is nothing to hold it in position. Should I block it up and center it in the strut bushing on both ends and then adjust the engine up/down, left/right within tolerances or what. Should I not be able to spin the prop freely once everything is bolted back together ?
Thanks for any sugestions.
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Replies:
Posted By: captan1
Date Posted: November-15-2004 at 9:32pm
Well for starters you don't want the prop shaft to touch or rub the packing gland when your done. I read .003 difference from side to side, top to bottom of the couplers,,tranny and shaft mating surface when pushed together. The idea is to have a straight line from tranny output all the way to the prop. You probably only need to adjust the up/down/side to side a little to achieve this. Push the couplers together and slip a feeler gauge between them and slide the gauge all the way around 360 degrees and find the tight spot and angle the engine by way of adjusting the engine/tranny mounts to achieve equal or as close as you can coupler mating surface. You may have to use a pry bar or something like that to shift the engine side to side. After, with a wet strut bushing I was able to turn the shaft easily. It's nice knowing that's correct when you finish. I had to do this to twin engines below deck on my 31 foot Trojan, talk about a sore body after that, since then I have installed a Polyflex disk between the couplers that takes up any misalignment and vibration.
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http://www.correctcraftfan.com/diaries/details.asp?ID=452&sort=&pagenum=1&yrstart=1978&yrend=1978 - 1978 Ski Nautique
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