Engine Declas - Valve cover and oil breather

pfarber · Post by **pfarber** » Mon Dec 27, 2010 2:58 pm

These decals are available from Ross Prince in Australia.

Mr Prince can be reached via e-mail at: rossprince@y7mail.com

pfarber · Post by **pfarber** » Mon Dec 27, 2010 3:01 pm

Before you post, YES, I KNOW that valve clearance was increased on CCKWs to .016.

If you have a copy of the decal saying such, please e-mail or post a picture.

pfarber · Post by **pfarber** » Sat Jan 08, 2011 4:49 am

The valve clearances were adjusted to

INTAKE: .012
EXHAUST: .016

Previously to December7th, 1943 both were to be set to .012. This is from GM Tech Bulletin G-86.

No information regarding the valve cover decal was altered... I would assume that they added a line to ensure the proper valve clearances were made. But so far nothing conclusive has been found.

pfarber · Post by **pfarber** » Sat Jan 08, 2011 5:04 am

This is an interesting picture taken from GM Tech. Bulletin G-97 covering the reworking of exhaust manifolds. The valve cover decals are that the REAR:

Most Tm pictures put the decals at the FRONT:

tm9-801.com

Engine Declas - Valve cover and oil breather

Engine Declas - Valve cover and oil breather

Re: Engine Declas - Valve cover and oil breather

Re: Engine Declas - Valve cover and oil breather

Re: Engine Declas - Valve cover and oil breather