LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

what can cause a timing chain to stretch in 2,000 miles?

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Old Aug 17, 2005 | 11:31 AM
  #1  
blackztpi's Avatar
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what can cause a timing chain to stretch in 2,000 miles?

just wondering what can cause a timing chain to stretch in 2,000 miles specifically a cloyes double roller. is it made to stretch so much, or is something not right?
Old Aug 17, 2005 | 12:02 PM
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Re: what can cause a timing chain to stretch in 2,000 miles?

how much did it stretch?
Old Aug 17, 2005 | 12:19 PM
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Re: what can cause a timing chain to stretch in 2,000 miles?

I would think the most likely cause would be lack of lubrication. This would cause over heating and stretch. There should be signs, like galling on the rollers and gear. Only other thing I can think of is the one off bad gear set.
Old Aug 17, 2005 | 01:43 PM
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Re: what can cause a timing chain to stretch in 2,000 miles?

no real signs or anything. it just had some slack in it...plenty more than the one cloyes DR i got. so a bad bearing or anything can't stretch it out? something out of balance messing it up?
Old Aug 17, 2005 | 01:48 PM
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Re: what can cause a timing chain to stretch in 2,000 miles?

A bad cam bearing MIGHT make it stretch more...if the cam was harder to turn....
Old Aug 17, 2005 | 03:55 PM
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Re: what can cause a timing chain to stretch in 2,000 miles?

It is normal for a timing chain to stretch from Brand new to 2000 miles. It just depends how much "stretch" were dealing with.
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