98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
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98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Hey all,
Having an issue with my 96 civic lx. ce light p0420. Also might have a leak at the manifold to cat which could cause this code. Went to the parts store to get a new gasket and they sold me two circular ring type gaskets. When I took the old gasket off it was a normal metal flat type gasket. What is the proper style gasket for this car???
Having an issue with my 96 civic lx. ce light p0420. Also might have a leak at the manifold to cat which could cause this code. Went to the parts store to get a new gasket and they sold me two circular ring type gaskets. When I took the old gasket off it was a normal metal flat type gasket. What is the proper style gasket for this car???
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
The two rings are for the original manifold, if it has a flat triangular type then it's an aftermarket header. I don't think a part store is gonna have it in stock, it may be something you need to find from the manufacturer of the header or maybe ebay.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
The flat one came off the car. The round one is the one they sold me. From what I can tell its all oem or an oem replacement. I don't believe its aftermarket. I attempted to install the round one but couldn't get it to fit in the manifold like I think I would. Ideas?
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Thats an oem replacement cat converter. I dunno where you'll be able to find another gasket to cover that big opening.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
The oem unit was a one piece assembly, there is not a replacement gasket available at autoparts stores for that catalytic converter
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
ahhh so I see. recommendations on a fix for it? make my own gasket? exhaust cement or something over this old gasket?
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Call Dorman, give them the part number of the cat, ask them for a gasket.
If you can't find it, try some of this stuff:
EXHAUST MANIFOLD GASKET MATERIAL - Case IH Parts - Case IH Tractor Parts
Worst case scenario, you replace the whole cat.
@TomCat39 needs to review this post for accuracy.
If you can't find it, try some of this stuff:
EXHAUST MANIFOLD GASKET MATERIAL - Case IH Parts - Case IH Tractor Parts
Worst case scenario, you replace the whole cat.
@TomCat39 needs to review this post for accuracy.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Call Dorman, give them the part number of the cat, ask them for a gasket.
If you can't find it, try some of this stuff:
EXHAUST MANIFOLD GASKET MATERIAL - Case IH Parts - Case IH Tractor Parts
Worst case scenario, you replace the whole cat.
@TomCat39 needs to review this post for accuracy.
If you can't find it, try some of this stuff:
EXHAUST MANIFOLD GASKET MATERIAL - Case IH Parts - Case IH Tractor Parts
Worst case scenario, you replace the whole cat.
@TomCat39 needs to review this post for accuracy.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Has anyone ever tried to use any kind of cement or exhaust sealant to fix an issue like this? Like dress the old gasket in something
re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Yes.
I've used stuff called "Muffler Mender" and it works okay, but if the part isn't securely fastened or has a flex pipe near it, then it becomes useless.
This post not yet @TomCat39 approved.
I've used stuff called "Muffler Mender" and it works okay, but if the part isn't securely fastened or has a flex pipe near it, then it becomes useless.
This post not yet @TomCat39 approved.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
I've used copper spray gasket material on old exhaust gaskets. So far so good, you can get it at any autoparts store
re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Isn't there an exhaust grade silicone made by permatex? I think copper withstands three thousand degree but i'm not sure i forget
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this post isn't @slomofo approved.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
So I used some of the copper gasket maker and that helped but the leak is still slightly there. Not really audible but you can feel some slight air. I also have had a check engine light for a while which I think is due to this leak. The code is p0420 Cat converter efficiency. Could this leak be the issue for the light to come on? Also my next step since I can purchase a new gasket is to weld them together. Anyone see why this would be a bad thing to do? Remove the exhaust and sensors and weld the two flat flanged together? I have a mig welder at home just was trying not to have to remove the whole thing....but I'm down to the last option. I could live with the small leak it currently has but want to get rid of the check engine light.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
Is it the original cat?
Remove the cat and use a flashlight to inspect the internal glass substrate. What do you see? Is the substrate melted?
If the cat is clogged, the exhaust leak may be due in part or entirety to high exhaust back pressure. And a dead cat will throw P0420.
Remove the cat and use a flashlight to inspect the internal glass substrate. What do you see? Is the substrate melted?
If the cat is clogged, the exhaust leak may be due in part or entirety to high exhaust back pressure. And a dead cat will throw P0420.
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
The cat has been replaced...kinda the whole problem in this thread. It was replaced with a dorman unit, who knows how long ago and they will not sell me a new gasket for it. I will inspect it before I just weld it up then lol. Make sure it appears to not be clogged. If its not clogged the leak could cause the light to come on correct?
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re: 98 Civic D16Y7 - Need gasket between exhaust manifold-cat unit and exhaust pipe A
How old is the Dorman replacement? If the engine has been running rich or misfiring since installing the Dorman, the cat would be killed lickity-split.