leaking manifold gasket,, loss of power??

[TurboFreak]

Sorry to semi-jack your thread but could this also occur on a N/A? I mean I know it could but would it be a very noticeable lack of power if there is a major exhaust leak from the header to the downpipe? I know thats different than the OP's problem but just figure I'd ask here instead of making another thread.

 

[Mr.PFloyd]

it would run rich so yea.

 

[ms07s]

im really sorry to hear about that.. he was leaking gas to did you say?

The thred reads his downpipe came loose and the exhaust heat started a fire.

Sorry to semi-jack your thread but could this also occur on a N/A? I mean I know it could but would it be a very noticeable lack of power if there is a major exhaust leak from the header to the downpipe? I know thats different than the OP's problem but just figure I'd ask here instead of making another thread.

Yes, and a N/A with an exhaust leak is also loosing necessary back pressure, and as cryoslash stated it will run rich.

 

[suprafanatic]

o wow....

 

[starscream5000]

Mine were loose when I got the car, put on the full turbo back, the car ran good. Tightened the exhaust bolts/studs down (previous owners are weird like that) and gain quite a bit of low end power and throttle response.

 

[suprahooked]

im really sorry to hear about that.. he was leaking gas to did you say?

No he was not leaking any gas . Got so hot the speedo cable started it.

 

[Halsupramk3]

if the exhaust manifold bolts are not tight that is a good way to warp the head and exhaust manifold. heat is being applied to each piece in ways it should not be and at various points ie each loose stud. the exhaust maniflold can warp and even when helicoiled the manifold may have different torque pressures at the warped points. that could still cause premature maniflold gasket failure. I had my exhaust manifold decked to be straight when i helicoiled the head. That way i knew the maniflold was tight all along the head.

 

[bluepearl]

^^ Me too! and this is the first time I have seen it mentioned here.