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TurboKraft TurboKraft is offline
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Join Date: Mar 2005
Location: Phoenix, AZ
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Originally Posted by baloo View Post
HOWEVER, while the ball-valve subject is being aired, is this setup needed or useful with the old boat anchor 3LDZ turbo (float bearings, aka shell or flat bearings)?
Yes, we have found it useful on 3LDZ and K27 equipped 911 Turbos as some will have a huge puff of smoke on startup. If we remove the drain canister, start and immediately stop the engine, and inspect the oil flow out the turbo drain, it just goes on and on and on dripping oil.

We initially tried this in 2 cars in the shop, a tired ex-Ruf BTR with a K29 and a newly built one with a GT35R, both with a huge puff of oil smoke at startup. New check valves at the oil source, problem gone.

That was 5 years ago, both cars still going strong on their same turbos, confirming there's no risk to the turbo.
Chris Carroll
TurboKraft, Inc.
Tel. 480.969.0911
email: -
Old 05-15-2013, 10:57 AM
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