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Old 04-30-2004, 05:37 AM
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oil in pvc

I have had the same problem with my sbc. some one replied that the motor should have a breather on both sides with the pvc in the middle, like the valley area. Can some one detail this better for me?

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Old 04-30-2004, 02:07 PM
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The way your referring to consists of drilling your intake manifold to use for a pcv valve to remove blow by gasses from the lifter valley, where it`s less prone to pull in any oil. My car used a quart of oil a week, I removed the valve cover and cut a slot in the upper part of the baffle, this way, vacuum can`t pull oil into the valve when oil covers the entire bottom of the baffle, since I`ve did so, my car uses no oil at all, try this way first, if it doesn`t work, I`d try the intake method next.
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Old 04-30-2004, 03:20 PM
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pvc oil blow by

Thanks for the detailed info on cutting a slot in the baffle. Let me provide additional info. my sbc has after-market (tall) vavle covers. They have a stamped plate that attaches to the cover, leaving an air-gap under the valve cover pvc hole., i.e. there is no baffle like the stock cover. So if you are able to detail the valley breather mod abit i would greatly appreciate it. thanx
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Old 04-30-2004, 04:05 PM
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If all you have is a plate over the bottom of the pcv valve, it WILL suck oil. The oil gets tossed off the rockers and goes everywhere and some is bound to go right into the valve.

I looked high and low until I found a set of tall covers that had a good baffle. The Proform "genuine GM" ( made by license in China ) have what looks like the stock GM baffle in them. No problems yet! ( knock on Kung Pow Chicken!)

Mark
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