| |
Click on image for the lowdown. 
====
|
| | Forums66 Topics128,051 Posts1,055,729 Members48,426 | | 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: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I have seen a number of distributors with this set-up.
Wouldn't mind having that card.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | So it's a cam bolt to pre-load vacuum advance?
Drew
| | | | | Joined: Sep 2008 Posts: 872 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 872 | Looks like an eccentric screw.... would allow you to change the timing of the vacuum advance. It probably has about 1/16thin total swing.. that would add or reduce the effect of the advance by shortening or lengthening the effective arm of the advance giving you more or less degrees timing.
| | | | | Joined: Oct 2013 Posts: 98 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2013 Posts: 98 | Interesting. That is something to ponder about isn't it.
A shop is where you wash your hands before you pee.
| | | | | Joined: Mar 2010 Posts: 10,272 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,272 | Brad, do you have a close-up picture of one of those removed from the card? I'm curious how it is designed.
Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Sep 2006 Posts: 3,596 'Bolter | | 'Bolter Joined: Sep 2006 Posts: 3,596 | | | |
|
|
| |
