Y-Pipe Question

[Brock94]

I recently removed and reinstalled my Y-Pipe to do some transmission work-- since then I've noticed a repetitive "pffft" sound that increases in rate with engine rpm. I'm thinking (but haven't confirmed) that it's a leak where the Y-pipe meets the exhaust manifold. Does anyone know if there is supposed to be a gasket at these connections?

(If one was already on there, I didn't notice when I took it apart and reassembled, so it might need to be replaced with a new one.)

 

[Noved87]

i believe there should be a gasket in there but i cant remember. call your local auto parts store. they can look this stuff up for you.

 

[shamaal]

Y pipe question

According to Haynes (2A-9), the 4.0 L pushrod engines did not have a gasket where the exhaust manifold meets the head. My 91 Mazda didn't when i pulled the heads. The cylinder head kit comes with a manifold gasket anyway for circomstances where the manifolds warped

 

[alexefron]

not sure about that spot, but on my ex the passenger side connection is rusting out, and causing the same leaking noise. I do believe that there is a gasket between the y-pipe and cat, so i wouldn't be suprised if theres soposed to be a gasket between the y pipe, and mainfolds.