Exhaust Gasket Part Number
#1
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Exhaust Gasket Part Number
Can someone say me whats the gasket between Exhaust Pipe and Catalytic Converter? I suspect mine is probably leaking so I would replace both the exhaust gaskets. Also is it a DIY or pay a shop to do it? I suspect the car is from California and look okay on the Cats, the bolt might be stuck deep. So.
Also can i apply a JB weld and seal it off instead of replacing the gasket otherwise?
Also can i apply a JB weld and seal it off instead of replacing the gasket otherwise?
#3
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Part number for L and R gasket's then? 1998 LS400 and California if that matters
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#7
First time I did it, I bought new gaskets and put a little Permatex Ultra Copper on(still had leak). Second time I tore it apart, I reused the gaskets and used a lot of the sealer. I took pictures of the after shot if you're interested.
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#9
The reason I don't think the gaskets matter that much, is that the first time I changed out my gaskets to fix the leak- the leak was actually much worse after I had cleaned up the flange of corrosion and installed new gaskets.
Last edited by jaaa; 03-29-19 at 06:42 AM.
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Sherl (03-29-19)
#10
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On this thread around post 127 and 128 you should see pictures of what I was talking about. As to part numbers, I just went to Lexus and ordered them there. I also have a 1996 and think the numbers changed for the 1998. You could also just go to AZ. I don't think the quality of the gasket matters as much as using liberal amounts of the Permatex.https://www.clublexus.com/forums/ls-...w-owner-9.html
The reason I don't think the gaskets matter that much, is that the first time I changed out my gaskets to fix the leak- the leak was actually much worse after I had cleaned up the flange of corrosion and installed new gaskets.
The reason I don't think the gaskets matter that much, is that the first time I changed out my gaskets to fix the leak- the leak was actually much worse after I had cleaned up the flange of corrosion and installed new gaskets.
#11
Two bolts hold the rear part of the cats on both sides, so you would need to take off 4 bolts(and one in the rear if you wanted to take the Y pipe off entirely. If I remember right I had to cut off one of the bolts because I rounded off bolts on disassembly. Probably depends on how rusted those bolts are as to whether you could handle this.
#12
Racer
This stuff might be better though. The copper stuff only goes to 700F intermittent. This stuff goes to 2000F, Permatex Muffler & Tailpipe Sealer
https://www.acehardware.com/departme...4aAnoBEALw_wcB
Last edited by Losiracer2; 03-31-19 at 12:51 AM.
#13
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On this thread around post 127 and 128 you should see pictures of what I was talking about. As to part numbers, I just went to Lexus and ordered them there. I also have a 1996 and think the numbers changed for the 1998. You could also just go to AZ. I don't think the quality of the gasket matters as much as using liberal amounts of the Permatex.https://www.clublexus.com/forums/ls-...w-owner-9.html
The reason I don't think the gaskets matter that much, is that the first time I changed out my gaskets to fix the leak- the leak was actually much worse after I had cleaned up the flange of corrosion and installed new gaskets.
The reason I don't think the gaskets matter that much, is that the first time I changed out my gaskets to fix the leak- the leak was actually much worse after I had cleaned up the flange of corrosion and installed new gaskets.
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