The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Help is a click away!

VEHICLE
INFORMATION
KITS


at the

GM Heritage Center
All the details are here.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
4 members (52Carl, Hanks custodian, Hugh63c10, Ponchogl), 122 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics128,052
Posts1,055,771
Members48,426
Most Online14,466
Apr 26th, 2026
Step-by-step instructions for pictures in the forums
Brad Allen's photos

AD Chevy Trucks

Pictures galore
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!

Big Thanks!

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!

Previous Thread
Next Thread
Print Thread
Joined: Nov 2002
Posts: 394
O
'Bolter
'Bolter
O Offline
Joined: Nov 2002
Posts: 394
We'll here I go again thinking my 235' is just running so good when all of a sudden, my vacuum advance just is not operating. I'm holding around 17 hg's from the line off the carb., but from idle up to about 2500 rpm's the lever is not moving what so ever, the engine want's to stumble a bit to.Could this just be a bad unit or is there something internally wrong in the distributer? :confused:

Joined: Sep 2000
Posts: 114
J
Member
Member
J Offline
Joined: Sep 2000
Posts: 114
Can you turn the distributor easily by hand? The vacuum advance gets rusty and stiff over time...

Jim


Jim
Joined: Mar 2000
Posts: 1,177
Red dot, center of chest ...
Red dot, center of chest ...
Joined: Mar 2000
Posts: 1,177
I believe you can disconnect the lever arm from the vacuum advance and operate it by hand. By doing that, you could test whether or not the mechanical parts of the advance are operating as expected.

You can also disconnect the vacuum hose from the advance, attach a rubber hose to it, suck through it and see if it holds a vacuum. (Or use a vacuum tester if you happen to have one handy.)


Paul Schmehl CI 6
geek@stovebolt.com
Stovebolt Staff: Geek
Joined: Jun 2000
Posts: 2,773
F
'Bolter
'Bolter
F Offline
Joined: Jun 2000
Posts: 2,773
Before I suck on a modulator, I gently blow into it first. That checks the diaphragm, and avoids sucking dirt into my mouth.


Fred
52 3600
69 C-10

Moderated by  Phak1, Woogeroo 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0