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Mark Henry Mark Henry is offline
Puny Bird
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Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,097
Originally Posted by 911 Rod View Post
Thinking out loud here.
I noticed a whistle sound under throttle. Now that it is cold out it doesn't start as well as it should.
Could a vacuum leak be the culprit to oil usage?
What kind or whistle? constant or a fast pulse, the latter can be a head leak.
Do you have a WB meter? what is your AFR? But I don't think this would be your oil issue.

Not sure on the 911, but with a 996 engine too much vacuum (faulty AOS) will cause issues with the JE rings, nikasil rings are low tension.

I have reasonably priced WB meters that I now sell (several in stock) and I'm also considering offering a rental unit.
I build them with custom length harness for 914 and 911 or a longer temporary install harness.
PM me if interested.
'74 Porsche 914, 3.0/6
'72 Porsche 914, 1.7, wife's summer DD
'67 Bug, 2600cc T4,'67 Bus, 2.0 T1
Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend.
Old 03-21-2019, 03:50 PM
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