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Should I get rid of the PCV

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by xnoahx, May 31, 2001.

  1. xnoahx

    xnoahx 1/2 ton status

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    Ive got a set of chrome valve covers that im going to put on my 73 blazer and i was wondering if i should just put breathers on it and cap off the vacuum port on my Q-jet? Or, should i just get a gromet or a push on breather with a PCV outlet? would it be bad to cap off the vacuum port?

    Check out my 73 K5 http://members.theglobe.com/xnoahx/73k5.htm
     
  2. wayne

    wayne 3/4 ton status

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    Just my $.02 but keep the PCV.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  3. Pugsley

    Pugsley 1/2 ton status

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    You'd do better to keep the PCV operating. I took mine out for one day, and ended up with enough oil leaking out of the valve covers/breathers that it looked like I was driving the Exxon Valdez. This was a brand new engine with lots of blowby, but pretty much any of them will leak some without a PCV valve.

    I'm not creative enough to comeup with a new signature [​IMG]
     
  4. CaptCrunch

    CaptCrunch 1/2 ton status

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    Keep the PCV! There is a reason why it is there and has been for like 30 years. Go ahead and run the dual or single open element breathers if you want... they should work just fine.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <A target="_blank" HREF=http://www.geocities.com/milnerlives_2000/blazer.htm>http://www.geocities.com/milnerlives_2000/blazer.htm</A>
     
  5. Burt4x4

    Burt4x4 3/4 ton status

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    I too capped mine off several yrs ago as a test and as soon as I got up to Hwy speed smoke started belowing out of my hood. I thought my rig was on fire. Turns out to be oil spewing out everywere. So I put the PCV back in sprayed on some engin cleaner and no more masive oil leak!!
    Keep it!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  6. 1bad82k5

    1bad82k5 1/2 ton status

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    Keep the pcv. I took mine off and just ran breathers. It built up so much crankcase pressure it blew the front of my oil pan gasket out.
    eric

    Hell, it don't really matter....it's just for my race car.
     
  7. xnoahx

    xnoahx 1/2 ton status

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