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Discussion in 'Engine Topic' started by nagrom28, May 9, 2014.
Nicely done out there in Sask.
Hi guys!! I changed my valve covers and they fit well and no leaks. On one side I have the oil fill cap and behind that there's the whole for the PCV valve connected to the back of the carb. On the other valve cover the whole is plugged. Does that mean that air comes in and out of the air cleaner?
No sir....you need a breather cap where your oil fill cap is. That is where it would pull fresh air from. The air cleaner is for the engine combustion only.
If I have original GM valve covers, what would be the diameter size of the breather push in nozzle? The ones I have on my old chrome ones are too big and don't fit my covers. I found the 3/4 nozzle type . maybe they will fit.
If you have OEM GM valve covers, or any valve covers for that fact, then you can measure the hole. The last ones I bought, I had to "massage" to get them to fit, even though they came in the "right" size.
Yes! I did exactly that. Its the 3/4 inch nozzle breather. Thanks!