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The Terminator
Turbo Cobras
Oil restrictor for Precision 67's?
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<blockquote data-quote="Turbo98" data-source="post: 12521200" data-attributes="member: 39787"><p>This sounds like a 100% drain back issue only. Like mentioned, contrary to popular belief, the seals can't just "blow out". Call and talk to the service dep't at Precision to get clarification. If the bearings are good, the seals are good. If there's no shaft play, chances are everything is ok--especially with BB turbos.</p><p></p><p>I had new Precision 6266 journal bearing turbos on my car this year and while being tuned, the car started smoking. Pulled the filters and tons of shaft play. The seals were obviously compromised in this situation. Sent them to Precision and they said it looks like an oil starvation issue. We did notice some teflon tape debris in the feed line screen but it wasns't totally clogged. I've had two previous sets of journal bearing turbos on this set-up with no issues. I then upgraded to BB turbos because I figure the less oil required, the better. If you look into the oil inlet port of your turbo, you'll see about a 30 thousandths built-in restrictor. Precision has it regulated to what it needs. I wouldn't mess with it. Just get your drain issue plumbed and figured out and you'll be good!</p></blockquote><p></p>
[QUOTE="Turbo98, post: 12521200, member: 39787"] This sounds like a 100% drain back issue only. Like mentioned, contrary to popular belief, the seals can't just "blow out". Call and talk to the service dep't at Precision to get clarification. If the bearings are good, the seals are good. If there's no shaft play, chances are everything is ok--especially with BB turbos. I had new Precision 6266 journal bearing turbos on my car this year and while being tuned, the car started smoking. Pulled the filters and tons of shaft play. The seals were obviously compromised in this situation. Sent them to Precision and they said it looks like an oil starvation issue. We did notice some teflon tape debris in the feed line screen but it wasns't totally clogged. I've had two previous sets of journal bearing turbos on this set-up with no issues. I then upgraded to BB turbos because I figure the less oil required, the better. If you look into the oil inlet port of your turbo, you'll see about a 30 thousandths built-in restrictor. Precision has it regulated to what it needs. I wouldn't mess with it. Just get your drain issue plumbed and figured out and you'll be good! [/QUOTE]
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Oil restrictor for Precision 67's?
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