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

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Old 09-12-10, 08:33 PM
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kel
24 yrs driving 2nd Gen RX

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I HATE Surprises

Hi Gang,
Today, I removed the turbo and exhaust mainfold to replace gaskets hoping to get rid of a very odd buzz in the exhaust.
Below is my surprise.

Anyway, my question is will an exhaust manifold from an S5 TII engine fit on an S4?

(I'm assuming that y'all agree this one can't go back on the car).

Here's the page with big pix: http://www.kkoop.com/RX7/EXH.htm
Attached Thumbnails I HATE Surprises-outside1.jpg   I HATE Surprises-inside1.jpg   I HATE Surprises-inside2.jpg  
Old 09-12-10, 08:37 PM
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F-IT

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they are always cracked, its very rare to find one uncracked. and as far as repairing it, it is very hard to repair iron cast. you need to preheat the metal and weld it with a high nickel filler and the slowly cool it down. i'd just rock it unless you can either find a good one or go aftermarket
Old 09-12-10, 08:48 PM
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Informed Appreciation

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Find a local welding shop that is confident in doing cast iron repairs. You would be hard pressed to find an exhaust manifold that is in better condition than the one you have.
Old 09-12-10, 08:53 PM
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Right near Malloy

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JB weld to the rescue!
I'm sure there are other substances that'll do the trick too.

(Put it on the outside so that it doesn't go into the turbine if it breaks off.)
Old 09-12-10, 10:28 PM
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Originally Posted by kel

Anyway, my question is will an exhaust manifold from an S5 TII engine fit on an S4?
Yes, however you would have to use the S5 turbo. Manifolds are interchangeable between all 13B's, but you need the same series turbo for same series manifold.
Old 09-12-10, 10:29 PM
  #6  
Sir Jason the Awesome
 
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Waffles waffles, buy tastey waffles...
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