High Boost and crankcase pressure.

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High Boost and crankcase pressure.

700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars

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Oct 18th, 2019, 21:23	#1
Ashc Member Last Online: Feb 15th, 2024 21:13 Join Date: Jul 2012 Location: Walsall	High Boost and crankcase pressure. I've been running around 19 psi on a 15g for a few years now. My camshaft seal and my distributor shaft seal are both leaking. I've replaced the camshaft seal and dismantled the distributor and replaced all of the seals. This seemed to cure things for a few months but now they're leaking again. I'm wondering if this is down to crankcase pressure? My pcv system is working well with good vacuum at idle and when revved whilst stationary. I'm wondering if the standard pcv system can cope with higher boost? Does anyone successfully run higher boost with no oil leaks?

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