Thread: Boost leak?
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clexton1 clexton1 is offline
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Join Date: Jun 2008
Location: Katy, TX
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Boost leak?

I have a '76 930 with the original 3.0 and a few mods which include Kokeln IC and k27-7200. My problem is that I am not getting the full 1 bar boost, I can get it up to .7 or .75. When I first got it 2 years ago, I could get 1 bar so I know it has a 1 bar spring which the PO also confirmed. I changed all the o-rings but didn't fix the problem so I figured it might be a cracked injector block and just decided to live with it for a while. I was recently having a problem with the distributor and fixed a stuck advance plate and in the process found that the vacuum pot has a leak, a slow leak when checked with vacuum pump, it would still function but would bleed off. I was sondering that since this would also be under boost, could the leaking distributor pot bleed off .3 bar of boost?

Thanks,
Paul
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'76 Turbo Carrera
Old 04-14-2010, 06:33 PM
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