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weber...pvc??

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Old 06-29-2003, 05:29 PM
  #2  
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drill and tap on your manifold, then just use a stock pcv valve. be sure the tap is the pipe thread type.
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Old 06-30-2003, 12:06 PM
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If you don't have to go through any smog, I'd definetly not hook it up. On my '77, I just put a freeze plug in the side of the block where the tobe came out of, and left a breather filter on the valve cover. the motor ran just fine, and did not experience that bad idle syndrome when the dipstick was not seated all the way.
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Old 06-30-2003, 09:00 PM
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if you dont have pcv, you are going to have some nasty carbon build up in the block.
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Old 07-01-2003, 07:04 AM
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From what I understand, a PVC only works at certain times when the vacuum is at the right level, and with a breather on the valve cover it's venting all the time, but without any suction. This would lead me to beleive that the amount of blow by in the crank case would be about the same, and carbon build up would not be an issue. Although, I would be curious as to how the motor looks which I did this to. The new owner has put about 25k on it since it was sold, without any problems.
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Old 07-01-2003, 09:32 PM
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pcv operates at idle vaccum, it applies vaccum to the block and fresh air is brought in via valve cover breather.
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Old 07-03-2003, 11:48 AM
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So air is actually circulated into the valve cover, down by the timing chain and out through the side of the block? I didn't know that.
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Old 07-07-2003, 02:17 PM
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carbon build up and plug oil galley holes .
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