The '79 had the EGR system. That's all gone now but I had to fix the holes. Here's my attempt on the valve. It's just two pieces of 3/16" steel with an old exhaust gasket underneath. The right gasket would be better but this is temporary. I bent the upper plate a bit to press in the middle. It may leak a bit but I'm not concerned.
What may be a problem is the tube port on the inside. I think that's for exhaust sampling or something like that. It was broken off and the fitting broke, too. So, I drilled out the hole and tried to tap it. That wasn't working so I grabbed a big self-tapping bolt and...cracked the manifold. With my options being to swap in a manifold or go with it, I went with it. One bolt on that manifold was broken off when I got it and I fixed that. I didn't want to do that again. So, put some JB Weld into the hole to seal a bit and drove the bolt back in. Might just break off or leak but I've had worse. It is temporary, after all.
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1980 928S Euro x2
1987 944 N/A
Last edited by GlenL; 11-19-2016 at 10:36 AM.
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