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Join Date: Dec 2009
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Forget the exhaust / intake / boost - all that stuff. The seal is going to blow due to oil pressure. My guess is your oil return is plugged. Have you put a gauge on your engine to see what kind of oil pressure you are producing? There is a remote possibility your bypass is blocked creating an overpressure situation to the whole block and overwhelming the turbo oil return, but I'd bet on the former over the latter. Still, putting a gauge on it is the cheapest first test. You should be looking at 75 psi cold oil pressure at 2000 RPM, 50 psi at idle. That will drop to 50 psi hot oil pressure at 2000 RPM and 25 psi at idle. If you are seeing anything higher than that, you'll need to drop the rear oil cooler header and find out what's wrong with the bypass.
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM
I wonder if clouds ever look down on us and say, "Hey, look - that one is shaped like an idiot!"