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mark '87 930 mark '87 930 is offline
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Join Date: Feb 2006
Location: Toronto, Ontario
Posts: 727
unfortunately a leak down test is no longer an option as it's in short block status right now. I only checked #4 compression ring end gap (first one only) and I'm not even close to the service limit. I'll check the others, but I presume (read hope) they'll all be within spec.

I was thinking of sending out the heads regardless as my oil consumption was always a little higher than I would have liked.

As for the turbo/oil issue. compression housing I haven't inspected much yet, but looked to be fairly dry. Ironically, the turbo itself was one of the leaks I had. I checked the upper oil inlet pipe and it was dry, the oil leak seemed to be coming from the compressor housing. I know there is a large o ring there, but like you said, I would see oil inside the housing for that. Turbo only seemed to leak a drop or so when I drove the car hard. It's not an old turbo either, it has only 10-15K miles on it.

Thanks for all the input thus far. I'm a virgin when it comes to Porsche engines, but I'm not new to engines at all.
1987 930
1956 Chevy 3100
2009 Subaru Forester
2003 KX250 X2(I like my toys!!)
Old 12-29-2009, 11:23 AM
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