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Thread: collapsed lifters ?
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04-26-2009, 09:57 PM #1
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
collapsed lifters ?
I of course have the LS1 tick. Which I assume is a collapsed lifter(s) It was loud at start up and quieted down after warm up but was still there. Iv pulled out the engine to rebuild it for other things, but how can you tell which lifter is collapsed and should I just replace all of them sence im rebuilding it anyway?
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04-27-2009, 02:24 AM #2
Usually, you can see the top is recessed in when collapsed. Definitely, upgrade to a stronger lifter while it's apart. I've had good luck with the Comp 850's !!!
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04-27-2009, 10:18 AM #3
If you have it apart, replace the lifters. In fact, if you have it out replace everything you don't want to have to do later...
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04-27-2009, 10:30 AM #4
- Join Date
- Oct 2007
- Location
- Beaver Dam KY
- Posts
- 7,745
79 T/A -91 Firebird- 1998 Trans Am -Oynx Black
Very possible it could be a bent pushrod(not so much on the going away with heat. idk) or the common piston slap.
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04-28-2009, 02:52 AM #5
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
Thanks guys for the help... Im not sure I know exactly what "piston slap" means. I have a general idea, but could you tell me? thanks again.
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04-28-2009, 03:13 AM #6
- Join Date
- Oct 2007
- Location
- Beaver Dam KY
- Posts
- 7,745
79 T/A -91 Firebird- 1998 Trans Am -Oynx Black
Build specs on the engines werent too swell so the piston rocks in the bore when its cold. Metal expands and it seals everything up tight
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04-28-2009, 09:55 PM #7
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
Thanks for the explanation.
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04-28-2009, 10:19 PM #8
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