Exhaust leak, Need to know bolt size...

[Marlboro_Man]

Anybody tell me what size, thread pitch bolt/nut I might need for my passenger side h-pipe to stock header??? The nut seems to have come loose and fallen off and I'm hoping that the cause of the huge exhaust leak I'm hearing.

2004 GT SOHC

Thanks Ahead of time

 

[Marlboro_Man]

Well i picked up some nuts today and so far it's not...


3/8-16
3/8-24

m10-1.00
m10-1.50

Those sizes seem to be really close, they will start on the stud, but won't go past a thread or two.

Any ideas?

 

[BurningRubber]

No idea on the size but the leak may also be the gasket between the exhaust manifold (if its the stock manifolds) and the mid pipe.

Mine broke when I swapped mid pipes and that fawker was LOUD! A new gasket and it was all quieted down... may want to check into that as well.

 

[Marlboro_Man]

Well I'll have to retract my statement, It IS an M10-1.50 Thread pitch, with a 15mm metric head.


Got all 4 nuts replaced and no more exhaust leak. Wish i could say the same for the "Tapping" sound, but it's still there.