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-   -   Can a loose timing chain rattle (http://www.mastercraft.com/teamtalk/showthread.php?t=52810)

1988prostar190 02-21-2013 04:59 PM

Can a loose timing chain rattle
 
All summer I have been thinking this rattle clunking sound is from my transmission but everything in the tranny is mint. So if now I'm looking into the engine end of things, would the timing chain be first to check when searching for a clunking rattle at low rpm and hot.

jhall0711 02-21-2013 06:23 PM

Quote:

Originally Posted by 1988prostar190 (Post 910550)
All summer I have been thinking this rattle clunking sound is from my transmission but everything in the tranny is mint. So if now I'm looking into the engine end of things, would the timing chain be first to check when searching for a clunking rattle at low rpm and hot.

Did you check your dampener plate? That is the common rattling sound in these trannys.

thatsmrmastercraft 02-21-2013 06:28 PM

It is possible for the timing chain to have so much slop that it hits the cover. Usually if it is excessively loose you will have other problems such as hard starting from little or no cranking vacuum and lack of performance. Should be able to find the source of the sound using a long screwdriver or, better yet, a mechanics stethoscope.

Note: if your wife has a stethoscope from her occupation she will not see the crossover use as reasonable.:rolleyes:

tockit 02-21-2013 07:25 PM

Quote:

Originally Posted by 1988prostar190 (Post 910550)
All summer I have been thinking this rattle clunking sound is from my transmission but everything in the tranny is mint. So if now I'm looking into the engine end of things, would the timing chain be first to check when searching for a clunking rattle at low rpm and hot.

Most definitely your damper plate! I just went through this last year with my 1989.

Here's what you need: http://www.skidim.com/prodinfo.asp?number=R140001


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