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engine allignment

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=314
Printed Date: November-27-2024 at 6:06pm


Topic: engine allignment
Posted By: cisom
Subject: engine allignment
Date Posted: April-23-2004 at 6:58pm
While winterizing my '75 Southwind 20 (351W/71C BW) last fall I noticed the jam nuts on the front motor mounts were loose. How do I determine if it is out of allignment (other than putting it in the lake and running it) and what is the procedure for re-allignment? Thanks.



Replies:
Posted By: Rick
Date Posted: April-23-2004 at 8:49pm
I beleive there are several threads on this here and on Nautique Planet. You need to tighten the nutson the front mounts. Then seperate the flange on the back of the transmission and the prop shaft. Rotate the shaft with a feeler guage between the flanges. The clearence should be .0001 to .0003" If more you are out of allignment.

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http://www.correctcraftfan.com/diaries/details.asp?ID=250&yrstart=1996&yrend=2000%20" rel="nofollow - 2000 Ski


Posted By: tryan
Date Posted: April-23-2004 at 10:30pm
the manuals in the refrence section give a short discription.

if the lock nuts are loose on the rear mounts, you should be okay and will only need to check as rick has stated ( but multiply by 10 0.001 to 0.003). it would be pretty hard for the adjustment shaft to spin from vibration.

if the front lock nuts are loose, you should be able to see if the trunion has been working up and down on the threads. the trunion is not threaded and the adjustment is from the lower nut.

it is important to align the boat at rest in the water. i do it with boat still attached to the trailer but floating. with calm water and a big pry bar, it's a two hour job.

if you think you want to try the ultimate-anal alignment, here is the
http://www.inboardtalk.com/cgi-bin/inboardtalk/YaBB.pl?board=36;action=display;num=1078425425 - procedure

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http://www.correctcraftfan.com/diaries/details.asp?ID=146&yrstart=1971&yrend=1975 - promo http://www.correctcraftfan.com/diaries/details.asp?ID=192&yrstart=1925&yrend=1970 -    #2


Posted By: cisom
Date Posted: April-26-2004 at 5:08pm
Thanks for the advice. Hopefully nothing has moved. We didn't use it alot last summer and I don't remember being in any real nasty water, so maybe they're ok.



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