PCV Valve(s) Replacement - ZR-1 Net Registry Forums

ralph92ZR1 · 01-17-2006

Doing some inexpensive winter-toolin around. Curiosity - from the book 1 of 2 service manuals for a 1992: there are 2 PCV valves and are not interchangeable. AC types CV746C and CV913C, however only CV913 is available and the other replaced by CV769C as per the GM dealer. My question is why 2 different sizes? Does anyone know the difference in function? Thanks...

ZR1 MK · 01-18-2006

See the link below for some insight.
http://listserv.corvettemuseum.com/c...&P=R52428&I=-3

ralph92ZR1 · 01-18-2006

Quote:

Originally Posted by ZR1 MK

See the link below for some insight.
http://listserv.corvettemuseum.com/c...&P=R52428&I=-3

Thanks Mike that link helps. I would still like to understand why 2 different sizes?

01-17-2006	#1
ralph92ZR1 Join Date: Dec 2005 Location: Shillington, Penna. Posts: 67	PCV Valve(s) Replacement Doing some inexpensive winter-toolin around. Curiosity - from the book 1 of 2 service manuals for a 1992: there are 2 PCV valves and are not interchangeable. AC types CV746C and CV913C, however only CV913 is available and the other replaced by CV769C as per the GM dealer. My question is why 2 different sizes? Does anyone know the difference in function? Thanks... __________________ [FONT=Franklin Gothic Medium]Ralph E. Weise [/FONT]:) '92 ZR-1#473 Red/Red

01-18-2006	#2
ZR1 MK Join Date: Aug 2005 Location: NY Posts: 143	Re: PCV Valve(s) Replacement See the link below for some insight. http://listserv.corvettemuseum.com/c...&P=R52428&I=-3 __________________ Mike 427 cu in LT5 [URL="http://zr1mk.weebly.com"]http://zr1mk.weebly.com[/URL]