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Subject: Re: gummed up Volvo

Date: 08/02/02 at 12:17 PM
Posted by: Brett Maynard
E-mail: brett@maynardtechnologies.com
Message Posted:

In Reply to: Re: gummed up Volvo posted by Jim on 08/01/02 at 10:53 PM:


PCV on a volvo 760 turbo is done with an oil trap, hose and knuckle with a hole in it. It is a straight pressure flow system that feeds into the engine air intake. This system has no moving parts and no electronic sensors. Mechanical malfunction is not a possibility.

The gumming blocked the oil trap, caused sticking lifters and ring proudness. Net effect is a build up of pressure that forces oil past the turbo seals.

For this to occur required ten miles of driving.

The entire PCV system was cleaned manually. Two days ago the engine was flushed out. Problem seems to have dissapeared for now.

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