Thread: New 930 Owner
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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
The whirring sound is likely the oil sump pump at the air pump. I don't have an airpump anymore, but the cam driven oil sump remains for the turbo oil return line.

I'm guessing here.. but I'm pretty sure that's what it is. I hear mine as well and that's where I have pinpointed it to.

I'm posting prematurely here.. as I would generally wait until pictures have been posted
1987 930
1956 Chevy 3100
2009 Subaru Forester
2003 KX250 X2(I like my toys!!)
Old 04-23-2008, 02:59 PM
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