Good afternoon
I have a cold start carb question.
First the particulars: 1980 Scout with 196 and a Holley 1940. It has a prestolite electronic dizzy. When I bought the truck I had the carb rebuild by a local carb shop in denver. After the rebuild we kept having problems. The power valve was wrong and Mike at don’s carb got it sorted out.
Symptoms: no start on a cold start from overnight. The truck turns over and catches once. After that it will not fire. A bit of fuel or starter fluid and it starts fine and idles fine. Electric choke works and after warm up it drives fine etc. I drive two miles to work and let it sit for 6 – 8 hours. Starts just fine. I wondered if the mechanical fuel pump was not getting the job done or letting the carb empty back into the tank. I installed an electric fuel pump with a momentary switch to prime the carb on a cold start. I checked the fuel line at the carb to make sure that it was pumping to the carb. Fuel just fine. The next morning I ran fuel to the carb from the electric pump for 30 seconds or so and hit the ignition. Same behavior, turns over, catches once and then it just turns over and over. Thimble of fuel- starts and idles no problem.
At this point I am reluctant to throw a bunch of money at this carb. If there is something simple that I am overlooking, fine. Fix it and I am good to go. If it is likely something more I think I will upgrade to the webber.
I can get one from stovebolt but it is a “push up” linkage. I have searched the boards but haven’t seen specifics on converting to the push up style. Would a simple cable fab work the same by “pulling up” instead of “push up”?
Thanks for the help.
Cameron
I have a cold start carb question.
First the particulars: 1980 Scout with 196 and a Holley 1940. It has a prestolite electronic dizzy. When I bought the truck I had the carb rebuild by a local carb shop in denver. After the rebuild we kept having problems. The power valve was wrong and Mike at don’s carb got it sorted out.
Symptoms: no start on a cold start from overnight. The truck turns over and catches once. After that it will not fire. A bit of fuel or starter fluid and it starts fine and idles fine. Electric choke works and after warm up it drives fine etc. I drive two miles to work and let it sit for 6 – 8 hours. Starts just fine. I wondered if the mechanical fuel pump was not getting the job done or letting the carb empty back into the tank. I installed an electric fuel pump with a momentary switch to prime the carb on a cold start. I checked the fuel line at the carb to make sure that it was pumping to the carb. Fuel just fine. The next morning I ran fuel to the carb from the electric pump for 30 seconds or so and hit the ignition. Same behavior, turns over, catches once and then it just turns over and over. Thimble of fuel- starts and idles no problem.
At this point I am reluctant to throw a bunch of money at this carb. If there is something simple that I am overlooking, fine. Fix it and I am good to go. If it is likely something more I think I will upgrade to the webber.
I can get one from stovebolt but it is a “push up” linkage. I have searched the boards but haven’t seen specifics on converting to the push up style. Would a simple cable fab work the same by “pulling up” instead of “push up”?
Thanks for the help.
Cameron
