The Ford Barn - View Single Post - Having trouble getting new Miller-Cragar setup to run

Jon E · 09-19-2021, 08:55 AM

Thanks for the responses.

In answer to your questions, I am located in the NW FL South Alabama area.

It was a fresh build for the previous owner and was run very little. Mostly just to drive it in and out of the trailer taking it to shows.

It does NOT have a fuel pump nor a pressure regulator. Yesterday I completely filled the gas tank to the top to give it some additional head pressure and that seemed to help. The weather has cleared some today, so I am going to try to road test it. Maybe it will run better once the engine is warm.

In the garage it seems to rev well at higher rpm, but at lower speeds it wants to pop and misfire. Similar to an engine with a badly worn timing chain or a bad vacuum leak.

I tried applying some choke to the carbs, but it didn't seem to help. I will experiment some more with that today.

I have played with the timing quite a bit with the engine running and it seems to have a fairly narrow window where it wants to run at. If I go much above or below that it does not want to run at all.

I'll report back after a road test today.

09-19-2021, 08:55 AM	#13
Jon E Junior Member Join Date: Sep 2021 Posts: 6	Re: Having trouble getting new Miller-Cragar setup to run Thanks for the responses. In answer to your questions, I am located in the NW FL South Alabama area. It was a fresh build for the previous owner and was run very little. Mostly just to drive it in and out of the trailer taking it to shows. It does NOT have a fuel pump nor a pressure regulator. Yesterday I completely filled the gas tank to the top to give it some additional head pressure and that seemed to help. The weather has cleared some today, so I am going to try to road test it. Maybe it will run better once the engine is warm. In the garage it seems to rev well at higher rpm, but at lower speeds it wants to pop and misfire. Similar to an engine with a badly worn timing chain or a bad vacuum leak. I tried applying some choke to the carbs, but it didn't seem to help. I will experiment some more with that today. I have played with the timing quite a bit with the engine running and it seems to have a fairly narrow window where it wants to run at. If I go much above or below that it does not want to run at all. I'll report back after a road test today.