Alk-3
04-28-2009, 01:36 PM
hey folks. I've got a backfiring issue with my 67 11A when i take my foot off the gas after revving it.
I 'm trying to eliminate the distributer as a possible cause, but i don't know how to tell if the vacuum advance is working or not. I cannot turn the distributer with my hand at all, and when I suck on the vacuum hose I get some air coming through, making me think the vacuum diaphragm is broken. should the distributer turn when vacuum is applied to it? Mine wont turn at all, so I think that's the problem.
The distributer is a lucas 25d
Thanks for any help!
I 'm trying to eliminate the distributer as a possible cause, but i don't know how to tell if the vacuum advance is working or not. I cannot turn the distributer with my hand at all, and when I suck on the vacuum hose I get some air coming through, making me think the vacuum diaphragm is broken. should the distributer turn when vacuum is applied to it? Mine wont turn at all, so I think that's the problem.
The distributer is a lucas 25d
Thanks for any help!