View Single Post
Old 10-28-2013, 10:26 AM   #7
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: '69 GMC 305 V6 not running right

Quote:
Originally Posted by BrianG View Post
sorry, if I'm a bit ignorant to these point style distributers, but do they have a vacuum advance? if the vacuum line in question went the distributer, seems like that could be the issue.
Yes, They have a vacuum advance. It's primary function is to advance the timing during low idle/lower rpms. As the butterflies/throttle opens and there is less engine vacuum the vacuum advance is less effective so the mechanical advance comes into play. That's why it's important to insure both work.
__________________
68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...

Last edited by 68gmsee; 10-28-2013 at 10:35 AM.
68gmsee is offline   Reply With Quote