Puzzling issue!?!?!
Puzzling issue!?!?! ok, we just bought this 94 z28.
this thing is becoming a headache, rear main seal was out when we ought it, we replaced that.
1.now the issue, the dipstick keeps "popping" out of the tube? and sprays oil all over everything.
2. take the fill cap off the valve cover and it "blows" air out instead of sucking in?
anyone???
this thing is becoming a headache, rear main seal was out when we ought it, we replaced that.
1.now the issue, the dipstick keeps "popping" out of the tube? and sprays oil all over everything.
2. take the fill cap off the valve cover and it "blows" air out instead of sucking in?
anyone???
1. we know it has a shitload of blow-by, but what could cause that? ive never had a problem like that.
2. the only thing on the passenger side valve cover is the oil fill cap, and a PCV valve in the back that runs to the trhottle body, driver side VC is blank. no breather holes.
2. the only thing on the passenger side valve cover is the oil fill cap, and a PCV valve in the back that runs to the trhottle body, driver side VC is blank. no breather holes.
TECH Addict
Joined: Jun 2009
Posts: 2,012
Likes: 0
From: Tulsa, OK
Blowby of this magnitude is caused by bad rings. The PCV is there to allow scavenging of the blowby back into the combustion chamber, replacing the road draft tube that preceeded it in 1963. The PCV is nothing more than a check valve to prevent a backfire from getting into the crankcase, potentially causing a crankcase explosion. All engines have some blowby (no such thing as a perfect seal), but it sounds like yours is really bad. Overhaul time.
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Blowby of this magnitude is caused by bad rings. The PCV is there to allow scavenging of the blowby back into the combustion chamber, replacing the road draft tube that preceeded it in 1963. The PCV is nothing more than a check valve to prevent a backfire from getting into the crankcase, potentially causing a crankcase explosion. All engines have some blowby (no such thing as a perfect seal), but it sounds like yours is really bad. Overhaul time.
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