valve covers with no PCV

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Apr 23, 2015 | 03:18 AM

marklt

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valve covers with no PCV

Hi there, whats the deal with valve covers in aluminium 'Oldsmobile' milled covers....but they have no PVC hole....will this cause problems?

Apr 23, 2015 | 06:13 AM

oldcutlass

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Posts: 42,475

From: Poteau, Ok

With aftermarket valve covers I've found you can add the PCV and breather ports

Apr 23, 2015 | 09:09 AM

tmaleck

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Joined: Sep 2009

Posts: 337

From: Austin, TX

Quote:

Originally Posted by marklt

Hi there, whats the deal with valve covers in aluminium 'Oldsmobile' milled covers....but they have no PVC hole....will this cause problems?

My 67 had no PCV when I got it. The rear main dripped, as did the manifold end rails. I put the PCV back, and the leaks stopped and oil consumption is now about 1/2 quart between oil changes.

Tim

Apr 23, 2015 | 06:33 PM

joe_padavano

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Joined: Mar 2007

Posts: 50,770

From: Northern VA

Aftermarket aluminum covers are blank so you can install whatever type of breather you want by drilling the right holes.

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