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Click on image for the lowdown. 
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10 members (Bruce 1954-4100, frogfarmer, DennisM, Joe H, Joe Lowe III, Shade Baby, 3B, Oswald, Cosmo, 1 invisible),
73
guests, and
1
robot. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,073 Posts1,055,908 Members48,429 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | The first task is to identify which valve. A compression test will find any leaking valve - much lower CCP, and that spark plug will be visually different from the others.
If a valve is leaking, the head has to come off. | | |
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