Is there anything special that needs to be done when replacing the rear muffler on a 1988 300E? I replaced it with Benz OEM but it seems to be leaking from the flange area. The clamp is tight but you can feel a bit of exhaust coming from around that area. Is there a trick or special compound to put in there before you bolt it together?

TIA
Steve

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1997 E320
1990 Nissan 300ZX Twin Turbo (Stage X+)

1. No your are OK be patient.
2. If you had the original on vehicle you would have to cut it off yes? As long as you don’t cut it to short you’re OK.
3. It should be a water leak (results from having a cat)from that spot. It takes a month or so for the two parts to “rust seal” together.

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So all I have to do is wait and it will seal itself up on its own?

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1997 E320
1990 Nissan 300ZX Twin Turbo (Stage X+)

1. If you had the original on vehicle you would have to cut it off yes? As long as you don’t cut it to short you’re OK. You should be able to have about 70-80 MM to insert the center muffler into the new rear muffler if you did it right.
2. The clamp should be torque to 25 NM.
3. It should be OK, If you cover the rear muffler (about 7-10 seconds) with your hand right after start you should feel pressure, take your hand away then a rush of pressure. Sounds something like this: soooump!…..pizzzzz……pushelll!
4. It should be a water leak (results from having a catalytic converter) from that spot. It takes a month or so for the two parts to “rust seal” together.
5. How do I know I did this twice on my 190E, once in Iceland when I was stationed there, and the other here in Maryland to pass state inspection. Same results both times.


Thai GI sends…

__________________
GI but not GI Joe
They call me "The Thai GI"
Thai in the US Arsenal