exhaust leak.... again. I need some help
#1
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exhaust leak.... again. I need some help
Ok I got the exhuast all welded and then found out that the little gasket that goes between the header and the air tube thing (PAIR system I believe) blew out. I got another gasket set (30 freaking dollars since they don't just sell the little gaskets) and swapped them in. The gasket blew again the instant I started the truck.
Is there something else I need to do to get this to stop?
Is there something else I need to do to get this to stop?
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#8
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Since no pics... are you talking about the gaskets that go between the PAIR manifold and the exhaust manifold, or the gasket at the rear of the PAIR manifold that joins the pipe which wraps around the rear of the engine to the PAIR valve? If it's the latter, it shouldn't blow out, but if it does it may be that the flanges there are warped or bent and not sealing properly.
#9
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Since no pics... are you talking about the gaskets that go between the PAIR manifold and the exhaust manifold, or the gasket at the rear of the PAIR manifold that joins the pipe which wraps around the rear of the engine to the PAIR valve? If it's the latter, it shouldn't blow out, but if it does it may be that the flanges there are warped or bent and not sealing properly.
#10
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I just went out and looked and the holes in the middle there (between the studs) are threaded.... I'll be I can find a bolt to go in there and snug the PAIR manifold up nice and tight. I'll hit the parts store tomorrow and see what I can find.
#11
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The one thing that I saw when I installed the LC header on my 89 truck, is that the lower edge of the PAIR flange makes contact with the top weld on the header flange/tube area (hope that makes sense). I removed material from the flange so that it was clear of the weld.
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
#12
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The one thing that I saw when I installed the LC header on my 89 truck, is that the lower edge of the PAIR flange makes contact with the top weld on the header flange/tube area (hope that makes sense). I removed material from the flange so that it was clear of the weld.
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
I hope that helps.
#16
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The one thing that I saw when I installed the LC header on my 89 truck, is that the lower edge of the PAIR flange makes contact with the top weld on the header flange/tube area (hope that makes sense). I removed material from the flange so that it was clear of the weld.
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
You may be sitting on the weld, creating a spot that does not make a good contact/seal. When exhaust gases make contact, leak.
I didn't take any pictures.
Hope that helps.
Mark
See above. I'm going to pull the PAIR assembly, grind it a little for clearance, replace the gaskets again and use two little bolts for those threaded holes just as soon as I figure out what size and pitch they are.
Cross your fingers!!
#17
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I willing to bet they are the same thread pitch as the studs are. I'm pretty sure I've screwed that hole before...
...anywho, you should pull one of the nuts off and get your bolts thataway.
...anywho, you should pull one of the nuts off and get your bolts thataway.
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kawazx636
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07-03-2023 03:03 AM