1973 l48 pcv

[Douglas C.]

Re: 1973 l48 pcv

Doug,
Here are a couple pics from my Restorer article I did on this very thing a while back. Yes the bottom lid just pops off using a small screwdriver in the marked slot and then snaps back into place.

Great, thanks again for your help. Doug

[Douglas C.]

Re: 1973 l48 pcv

One more question. AIM calls for PCV 6487530 which is CV769C. Is that correct for 73 L48? If so am I safe to buy an old stock one on Ebay? Doug

[Jimmy P.]

Re: 1973 l48 pcv

One more question. AIM calls for PCV 6487530 which is CV769C. Is that correct for 73 L48? If so am I safe to buy an old stock one on Ebay? Doug

Yes Dave that is correct for the 73L48. But Im not certain about the part numbers listed in the AIM. I questioned them while working on the latest 73-74 TIM&JG. I always looked for the part number Joe lists above for this valve.

[Douglas C.]

Re: 1973 l48 pcv

Yes Dave that is correct for the 73L48. But Im not certain about the part numbers listed in the AIM. I questioned them while working on the latest 73-74 TIM&JG. I always looked for the part number Joe lists above for this valve.

Thanks Jimmy, I'll order OEM CV769C from Ebay. Doug

[Joe L.]

Re: 1973 l48 pcv

Yes Dave that is correct for the 73L48. But Im not certain about the part numbers listed in the AIM. I questioned them while working on the latest 73-74 TIM&JG. I always looked for the part number Joe lists above for this valve.

Jimmy------

Parts from the old GM AC Division usually have different GM part numbers depending on whether destined for SERVICE or PRODUCTION. The AC part number (e.g. CV769C and usually embossed on the part) is the same and the SERVICE and PRODUCTION parts are virtually always identical but the GM "long numbers" are almost always different. So, in the vast majority of AC-supplied components one cannot use the part numbers in the AIM to determine the correct SERVICE part number.

[Joe L.]

Re: 1973 l48 pcv

Thanks Jimmy, I'll order OEM CV769C from Ebay. Doug

Doug------


Keep in mind that the CV 769C PCV valve has been available from GM for nearly 50 years, right up to the present day. All are equally functional. However, there have been nuances of configuration differences over the years and, especially, since AC ceased to be a GM manufacturing division and part manufacture was outsourced. So, if you are interested in exact original configuration you need to obtain an NOS CV769C that was manufactured 50 or so years ago. That can get difficult and expensive.

[Douglas C.]

Re: 1973 l48 pcv

Parts now received
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