Thread: ? about problem with pvc
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03-12-2009 08:46 AM #1
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- Mar 2005
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- north salem
- Car Year, Make, Model: 39 chevy coupe,57 bel-air, 67 gto
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? about problem with pvc
noticed a popping noise in the right exhuast pipe after the engine got warmed up, checked the plugs, timing, wires, etc. everything checked out alright. besides the poppings noise in the right exhuast, the engine runs great. on a chance, I removed the pvc that was on the right valve cover, installed a regular breather; & the popping stpped.
what would cause the pvc to make the engine make a popping noise in the exhuast on the same side the pvc is installed on?
the engine is a 1970 ls6 454 with cal custom valve covers that use twist-on style breathers. I was using the breather with a built in pvc in it. the pvc has no check valve, is basicly a tube welded to the breather. hose running from the breather went to a larger port on the back bottom edge on the holley carb.
any guess as to the problem with the pvc ?Last edited by hottrodd57; 03-12-2009 at 08:50 AM.
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