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Join Date: Aug 2008
Location: Marietta, GA
Posts: 99
Turbo oil sump question

First post! Thanks to everyone for their input in this forum... it has helped me accomplish numerous projects on my 1988 930... air injection removal, valve adjustment, A/C removal... looking forward to many more projects as I slowly slide down the slippery slope!

Currently I am repairing a leaky oil supply line to the turbo. While I was determining how to get the line out from under the intake, I noticed that the turbo oil drain line to the sump has been crushed. The only cause I can see is contact from the stock exhaust. After searching this forum, I found a couple other photos of stock sumps that appear to have a similar issue. Are these oil lines deformed on purpose to provide extra clearance with the stock exhaust? That seems odd to me. It appears to be a severe restriction to oil flow through the turbo.

If the line needs to be replaced, does it make sense to cut the damaged portion of the line out and replace with a braided line?

Thanks for everyone's help!


Old 10-29-2008, 04:12 AM
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