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Re: Engine swap how do I seal up the turbo oil return port? Posted by Cmyles [Email] ![]() ![]() In Reply to: Re: Engine swap how do I seal up the turbo oil return port?, Spike 25, Sat, 16 Mar 2013 20:14:40 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Could be blow-by but could also just be failed crankcase ventilation plumbing. Landjet has observed that many (or all) of the plastic fittings, the ones that go in the left side of the valve cover and have a large and a small nipple for crankcase ventilation, are not drilled through. The small fitting is totally occluded and must be drilled out. There has to be a way for pressure to get out of the crankcase and that's why there's a hole in the valve cover (which is a contiguous cavity with the crankcase).
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