Engine Declas - Valve cover and oil breather

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Engine Declas - Valve cover and oil breather

Postby 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

IMG_5817.JPG
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Re: Engine Declas - Valve cover and oil breather

Postby 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.
I got a Mountain Cur and a ~~pitbull~~ big loveable cuddle puppy
RIP Kimber 5/26/2022
RIP Yeager 1/3/2019
RIP TJ 3/25/2014
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RIP Shilo 4/10/2015
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Re: Engine Declas - Valve cover and oil breather

Postby 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.
I got a Mountain Cur and a ~~pitbull~~ big loveable cuddle puppy
RIP Kimber 5/26/2022
RIP Yeager 1/3/2019
RIP TJ 3/25/2014
RIP Sugar Bear 8/29/2014
RIP Shilo 4/10/2015
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Re: Engine Declas - Valve cover and oil breather

Postby 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:

Scan10001.jpg


Most Tm pictures put the decals at the FRONT:

scaled_d-6.jpg


scaled_d-3.jpg
I got a Mountain Cur and a ~~pitbull~~ big loveable cuddle puppy
RIP Kimber 5/26/2022
RIP Yeager 1/3/2019
RIP TJ 3/25/2014
RIP Sugar Bear 8/29/2014
RIP Shilo 4/10/2015
RIP Yuki 2/19/2017
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