Backfiring out one side.. Need some help..

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#14 (permalink)

08-20-2015, 11:39 AM

SFSDFGT

CC Member

Join Date: Jul 2014

Location: Sioux Falls, SD

Cobra Make, Engine: CSX 4145, aluminum body and Shelby aluminum FE stroker

Posts: 121

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Quote:

Originally Posted by commercialcobb

I still don't understand how a header gasket leak could cause a backfire out the tip of the tail pipe while accelerating?

As I understand it, if there is a leaky header gasket, exhaust pulsations can draw some atmospheric air/oxygen INTO the exhaust system through the gasket, allowing any unburned fuel in the exhaust to ignite (which otherwise wouldn't occur without enough oxygen), hence the "popping" in the exhaust. Somebody, correct me if I am wrong.

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