Exhaust Leaking Past Pyro Fitting In Exhaust Manifold

Exhaust Leaking Past Pyro Fitting In Exhaust Manifold

03-23-2005, 06:16 AM

#1 (permalink)

PKleine

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Join Date: Oct 2003 Location: The Great Northwest Posts: 150

Exhaust Leaking Past Pyro Fitting In Exhaust Manifold

It finally happened, after about 35k miles I broke something on my Cummins. I was exiting off I-5 down a steep grade where the sign said for trucks to use lower gears. So as I slowed I put her into 3rd ~3100 rpm and the exhaust brake gave its all. It's been whistling ever since.

As it turns out, the exhaust is escaping past the 1/4 npt bushing in the exhaust manifold mostly along a short section facing aft. The taper seems to be gone as the bushing will bottom easily. Anyone have an idea of how I can get the threads to seal again?

Thanks in advance.

Peter

__________________
2001 2500 4x4 ETH/DEE Long Bed Q/C Di-Pricol Boost, Pryo & Fuel Pressure. Bilsteins. Jacobs exhaust brake. DSS. RV275's. Rip's 4" Magnaflow exhaust. Smarty.

Last edited by PKleine; 03-23-2005 at 06:19 AM.. Reason: any one became anyone

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