New HG installed. Yotatech Rocks!
#3
#7
YotaTech Milestone-Two Millionth Post
Joined: Jan 2009
Posts: 12,009
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From: Northeast Pennsylvania
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#8
I've had a leak there before so it was suspect. When I fired it up the second time I just put my hand down there and could feel the hot exhaust coming out.
Here's some pics.
Napa Exhaust gas test

Spark plugs

Before cleaning

After cleaning

After Deglazing cyllinders
#9
I'll share this in case anyone else may have had the same problem.
The first time I had an exhaust leak where the Y pipe bolts to the Exhaust Manifold it was because the pipes that pipes that extend thru the flange on the Y pipe were almost 3/16 in, in spots where the gaskets are maybe 1/8 in thick so no matter how tight I got it it still leaked. I solved it by doubling up on the gaskets.
This time around I ground down the pipe to maybe 1/16 inch proud of the flange. Enough to position the gaskets but still allow them to seal.
The first time I had an exhaust leak where the Y pipe bolts to the Exhaust Manifold it was because the pipes that pipes that extend thru the flange on the Y pipe were almost 3/16 in, in spots where the gaskets are maybe 1/8 in thick so no matter how tight I got it it still leaked. I solved it by doubling up on the gaskets.
This time around I ground down the pipe to maybe 1/16 inch proud of the flange. Enough to position the gaskets but still allow them to seal.
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