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Old 02-21-2013, 03:59 PM
1988prostar190 1988prostar190 is offline
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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.
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Old 02-21-2013, 05:23 PM
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jhall0711 jhall0711 is offline
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Quote:
Originally Posted by 1988prostar190 View Post
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.
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Old 02-21-2013, 05:28 PM
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thatsmrmastercraft thatsmrmastercraft is offline
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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.
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Old 02-21-2013, 06:25 PM
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tockit tockit is offline
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Quote:
Originally Posted by 1988prostar190 View Post
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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