The Ford Barn

sport coupe newbie · 08-25-2015, 08:13 PM

Hi there. I am completely new to Model A's and need some help. We have just finished restoring a 30 Sport Coupe, including motor rebuild and new replacement Zenith Repro Carb. When it was first started, the motor started right up and idled very smoothly. Ran for about 20 minutes. Shut off and immediately restarted fine. A short while later, the car struggled starting. Would start to fire and struggle running over a few seconds. When finally got it started close to 10 minutes later, it ran super rough (not firing on all cylinders). With throttle applied, back fired numerous times through carb. After a few minutes it completely smoothed out and idled perfect again. I let it sit for two days and tried to restart. Pulled choke and it immediatly fired, but stumbled again like previous day. When finally got it running it ran super rough again, backfiring and appeared to drip some excess gas out of carb. 5 minues later it smoothed out completely like a flip of a switch. Acts like I am flooding out a cyliner or two. What am I missing that must be obvious? I just have zero experience but want to learn.

08-25-2015, 08:13 PM	#1
sport coupe newbie Junior Member Join Date: Oct 2014 Location: Norwich NY Posts: 23	Starting Difficulty Hi there. I am completely new to Model A's and need some help. We have just finished restoring a 30 Sport Coupe, including motor rebuild and new replacement Zenith Repro Carb. When it was first started, the motor started right up and idled very smoothly. Ran for about 20 minutes. Shut off and immediately restarted fine. A short while later, the car struggled starting. Would start to fire and struggle running over a few seconds. When finally got it started close to 10 minutes later, it ran super rough (not firing on all cylinders). With throttle applied, back fired numerous times through carb. After a few minutes it completely smoothed out and idled perfect again. I let it sit for two days and tried to restart. Pulled choke and it immediatly fired, but stumbled again like previous day. When finally got it running it ran super rough again, backfiring and appeared to drip some excess gas out of carb. 5 minues later it smoothed out completely like a flip of a switch. Acts like I am flooding out a cyliner or two. What am I missing that must be obvious? I just have zero experience but want to learn.