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#1
05-09-2004, 05:56 AM
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Crank Case Pressure High
I had recently bought a 1986 Chevy S-10 Blazer under the assumption that all it needed was a rear main seal. Pulled the motor and replaced the seal, all was fine. Not more than 20 miles later oil is pouring out of rear seal again. I further investigated the motor and noticed smoke and alot of pressure being built up in the crank case. What might be the cause of this and would it make my new seal go bad? At a big loss and need some advise.
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#2
05-09-2004, 08:16 AM
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Re: Crank Case Pressure High
Possibly a bad oil pump...I've seen them go high before quitting all together before.
__________________
  95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal
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#4
05-09-2004, 11:59 AM
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Re: Crank Case Pressure High
Possibly a silly question, but was the oil pump primed properly when it was installed?
__________________
95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal
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#5
05-09-2004, 10:24 PM
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Re: Crank Case Pressure High
Yes, I packed the oil pump with vasoline. Silly question, maybe but would the oil pump cause pressure in my ventilation? I have mad amounts of air being blown through my valve cover.
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#6
05-09-2004, 10:31 PM
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Re: Crank Case Pressure High
anything is possible... I'll have to ask a buddy of mine with more experience in that department...Another silly question, how is your PCV system and vac system?
__________________
95 s10 Blazer, EGR Mod, ZQ8 Steering box mod, 99 Center console shifter mod and more... See everything at www.pghconsulting.net/teal
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