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PVC Question
#492136
10/08/09 10:57 PM
10/08/09 10:57 PM
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Joined: Feb 2003
Posts: 4,953 Houston, Texas
TheOtherDodge
OP
master
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OP
master
Joined: Feb 2003
Posts: 4,953
Houston, Texas
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Tonight, I got on the 94 a bit (see https://board.moparts.org/ubbthreads/show...vc=#Post5533757). When I got it back in the garage, I saw oil all over the place under the hood. It is pushing up through the dipstick tube. I have a PVC and it worked fine until I really started to hammer on the truck like I did tonight. I know under WOT there is no vacuum so the PVC is useless and that is where the problem is. Are you guys putting a breather on 1 VC to help with this? If not, what are yall doing, short of a vacuum pump? Thanks!
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Re: PVC Question
[Re: Thumperdart]
#492138
10/08/09 11:08 PM
10/08/09 11:08 PM
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Joined: Feb 2003
Posts: 4,953 Houston, Texas
TheOtherDodge
OP
master
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OP
master
Joined: Feb 2003
Posts: 4,953
Houston, Texas
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"When I ran breathers only, I never had the issues you`re having w/blowing the dipstick out......... seems like a bit too much crank care pressure to me. "
But remember, under WOT, there is no vacuum for the PVC to work, so nowhere for the crank case pressure to vent...except out the dipstick tube!
On your setup, which I will prob have to do, your PVC does most of the work at part throttle. Under WOT, the breather allows the crankcase pressure to vent.
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Re: PVC Question
[Re: TheOtherDodge]
#492139
10/09/09 12:08 AM
10/09/09 12:08 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Have you changed the PCV(positive crankcase ventilation) if so, you do know there is more than 1 PCV... 1 for a V-8 and 1 for a 4 banger... you might have the small one
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Re: PVC Question
[Re: TheOtherDodge]
#492141
10/09/09 11:18 AM
10/09/09 11:18 AM
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Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
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master
Joined: Feb 2007
Posts: 5,080
organ
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i run a pcv valve on one side and two breathers on the other. no problems at the track, or anywhere else. my guess is you have inadequate breather capacity for w.o.t., or too much blowby, or possibly an incorrect/malfunctioning pcv valve.
for what is the good life if not doing things thoughtfully?
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