2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

manifold and turbo housing cracks

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Old Aug 29, 2003 | 07:37 AM
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Husemoller's Avatar
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manifold and turbo housing cracks

Here are some pics...I hope they work.

https://www.rx7club.com/photo/showph...t=7&thecat=500

This is the left hole on the manifold that connects to the block.

https://www.rx7club.com/photo/showph...t=7&thecat=500

This is on the bend of the manifold where the big circle thing connects to kind of. hard to explain.

https://www.rx7club.com/photo/showph...t=7&thecat=500

And that is actually on the turbo housing that connects to the manifold.

Are these bad? Or would I be able to use them still? I am planning to take them to a machine shop and get them fixed probably :P But just let me know.
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Old Aug 29, 2003 | 11:12 AM
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That's all fine. The only time cracks are bad on a turbo manifold is -

- if the crack lets exhaust gas escape and create an exhaust leak

- if the crack goes under the sealing surface of the gasket - that introduces gas under the gasket, leading to premature gasket failure.

I wouldn't sweat it. Looks like most every S4 manifold/turbine housing I've seen .

Before spending any money on it, I would upgrade to the '89-91 turbine housing and exhaust manifold. MUCH more efficient setup, and two wastegate ports.

Dale
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Old Aug 29, 2003 | 05:23 PM
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Would these last for a few more years with only about 1-2k miles a year? Dont really want to buy new turbo housings or manifolds for a little while. Got other stuff I need to do to it first.
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Old Aug 29, 2003 | 09:11 PM
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%^
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Old Aug 29, 2003 | 09:50 PM
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Also haveing trouble finding the ACV gasket...anyone point me in the right direction?
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Old Aug 29, 2003 | 11:04 PM
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Someone must be able to give me some information here???? Do I even need a gasket for the blockoff plate?

Anyone ever get cracks like that fixed before? how much does it cost about?
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Old Aug 29, 2003 | 11:24 PM
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should I just use RTV gasket stuff?
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Old Aug 30, 2003 | 03:09 PM
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man ppl dont like to reply to anything I post lol

Also do I need a gasket or anything from the turbo to the turbo housing?

Last edited by Husemoller; Aug 30, 2003 at 03:30 PM.
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