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urgent need your imputs guys
Posted: Thu Aug 11, 2011 5:00 pm
by redline
My 320/6 has a breather hose connecting the engine via the cam over to the air filter box. This is suppose to vent oil gases as the pressure builds up in the engine.
Lately the vent is purging oil and I mean OIL into the air filter box. It took a 1/4 box of tissues to clean off the oil in the air box when I checked the last 2 times. There is no rubber valve that I can see that is causing this problem.....everything is metal under the the cam cover.
Anyone can advise why this is happening??????
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 12:20 am
by nas80
Usually a symptom of old valve stem seals. You got a smoke exhaust gas when you put the power down?
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 1:16 am
by e21-Mark
Run hose from the cam cover vent into a catch tank rather than into the air filter.
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 5:03 am
by redline
nas80 wrote:Usually a symptom of old valve stem seals. You got a smoke exhaust gas when you put the power down?
Nope there is no smoke that I can see.........
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 5:07 am
by redline
e21-Mark wrote:Run hose from the cam cover vent into a catch tank rather than into the air filter.
Hmmmmm..........this would not explain why i m having this problem........know?????/
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 8:55 am
by e21-Mark
Crankcase pressurizing and/or worn valve guides, oil stem seals etc.
http://www.e30zone.net/modules.php?name ... highlight=
Re: urgent need your imputs guys
Posted: Fri Aug 12, 2011 10:10 am
by johne21
Hi, oil pumped up through the breather hose is a symptom of crankcase compression. This is due to piston blow-by caused by excessive bore wear and/or piston ring wear.