heads from the 93 and bolt them right up on mine... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-02-2006, 05:04 PM   #11
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Quote:
Originally Posted by BillBoost37
I smell a mechanical problem that we could diagnose if we could understand the misspelling above...lol
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well thats what this thread is for’ish...

i have a Valve tap Knock.... isn't that usually a bad pushrod or lifter of rocker?
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Old 06-03-2006, 03:08 AM   #12
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Quote:
Originally Posted by bandit
Quote:
Originally Posted by BillBoost37
I smell a mechanical problem that we could diagnose if we could understand the misspelling above...lol
FIXED


well thats what this thread is for’ish...

i have a Valve tap Knock.... isn't that usually a bad pushrod or lifter of rocker?
Yes... but replacing both heads won't have ANY effect on bad pushrods or lifters, only on bad rockers. To do the lifters you need to remove the lower intake, both valve covers, and loosen the bolts for the rockers. Ever seen a pushrod fail and leave the car drivable? No.

It'* possible there'a a colapsed lifter.

Rocker? Not so mcuh.

I may have missed it in a different thread, but could you explain your symptoms again please?
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Old 06-03-2006, 01:30 PM   #13
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Do we have video of this noise?

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Old 06-03-2006, 02:23 PM   #14
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Yes... but replacing both heads won't have ANY effect on bad pushrods or lifters, only on bad rockers. To do the lifters you need to remove the lower intake, both valve covers, and loosen the bolts for the rockers. Ever seen a pushrod fail and leave the car drivable? No.
Thank you for illustrating my reasoning. I was wondering this myself.
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Old 06-03-2006, 05:32 PM   #15
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Do we have video of this noise?
no but im sure about 5 or so people herd it well and clear at NEBF i know bill herd it, he said " nice knock you have there" lol

but i will try to get a video of it, its weird cuz once the car worms up and is hot you can barly here it.
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