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Knocking/Tapping sound when cold

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Old Jan 11, 2008 | 02:18 PM
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peccy
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From: roth
Question Knocking/Tapping sound when cold

1998 STi Type R

ive had the car 2000miles, ever since ive had it ive noticed a knocking/tapping noise at low revs from cold...

after a few minutes the noise goes away and everything is fine.

is this normal? crank trouble!? piston clearance?

?

just to add Engine was rebuilt 2000 miles ago with new crank.

Last edited by peccy; Jan 11, 2008 at 02:32 PM.
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Old Jan 11, 2008 | 02:21 PM
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From: over the hills and far away
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could be the start of piston slap
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Old Jan 11, 2008 | 02:31 PM
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From: roth
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Originally Posted by jd5217
could be the start of piston slap
hmm, engine was rebuilt 2000 a mile ago when i bought it. you reckon they havent put it back tobether right?
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Old Jan 11, 2008 | 02:39 PM
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i have heard of some engines after rebuild get "sticky tappets"
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