Guest Alan Baldwin Posted October 13, 2017 Share Posted October 13, 2017 1935 Chevy original as possible rebuild inside and out it runs fine for 10 to 15 minutes till it warms up it's not a parts problem. Replaced multiple times. The dwell reading jumps about 3 to 8 degrees . Link to comment Share on other sites More sharing options...
Taylormade Posted October 13, 2017 Share Posted October 13, 2017 Is your coil overheating as the car warms up? Link to comment Share on other sites More sharing options...
capngrog Posted October 13, 2017 Share Posted October 13, 2017 What parts have you "replaced multiple times"? Backfiring/misfiring can also be caused by fuel starvation. Good luck and let us know how it works out. Cheers, Grog Link to comment Share on other sites More sharing options...
Real Steel Posted October 13, 2017 Share Posted October 13, 2017 I would have said its worn distributor shaft bushings, but you say its not a part problem. How can you have such a large variance in dwell without it being a parts problem 1 Link to comment Share on other sites More sharing options...
60FlatTop Posted October 13, 2017 Share Posted October 13, 2017 There is always a chance of a bad condenser. Recent quality seems to be about 1% good ones. Link to comment Share on other sites More sharing options...
Real Steel Posted October 17, 2017 Share Posted October 17, 2017 On 10/13/2017 at 2:49 PM, 60FlatTop said: ... Recent (condenser) quality seems to be about 1% good ones. Wow, that is so true! Link to comment Share on other sites More sharing options...
Spinneyhill Posted October 17, 2017 Share Posted October 17, 2017 The timing can wander around if your main distributor shaft bush(es) are worn. Put a mark on something (e.g. vibration damper, fan belt pulley) and look at that mark with a timing light. If the bush is worn, it will wander around. As the shaft wobbles around in the loose bush it affects dwell and timing. Link to comment Share on other sites More sharing options...
Guest Posted October 17, 2017 Share Posted October 17, 2017 When I was in GM parts 59-72 we had one tune-up man that hardly ever replaced a condenser. If the points were burnt blue then he did. He said there was a much a chance of the new condenser failing as the old one. Incidentally he had the fewest come backs of our four tune-up men. He also set the timing and adjusted the carb and then went on a road test and tweaked the settings. Link to comment Share on other sites More sharing options...
Graham Man Posted October 17, 2017 Share Posted October 17, 2017 Had a similar problem with my 1929; once it got up to temperature it would just fall on its face then come back to life just to do it again. Bad condenser, changed it out and all was good. (I got two just in case) Link to comment Share on other sites More sharing options...
mrspeedyt Posted October 17, 2017 Share Posted October 17, 2017 tinindian's story i've heard a few times before over many years. best to just throw the new condenser into the glovebox as a spare. Link to comment Share on other sites More sharing options...
hidden_hunter Posted October 17, 2017 Share Posted October 17, 2017 On 10/14/2017 at 8:49 AM, 60FlatTop said: There is always a chance of a bad condenser. Recent quality seems to be about 1% good ones. Yep, we had that 'fun' experience - brand new one had issues put the 90 year old Delco one from a spare distributor back on and it runs perfectly. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now