The Ford Barn

oak29 · 11-05-2021, 01:00 PM

thanks for feedback. We've sorted the problem. We rechecked the timing and points; gap had opened up to 25+ thou. We corrected it; and messed around with the timing in the end giving it a bit more advance. We also balanced the idle jet and gas valve for smoother running. She's ticking over much better and pulling better now.

Feedback on vac guage and readings; first I suggest you get another model A that running well to compare against and take a video of the guage readings. We used my Ford Model A as the comparison. Taht way we could see what was normal flicker and a flicker caused by a real fault! At normal idle, the needle is flickering all over the place, so don't read too much into those readings. At a step above fast idle, the needle settles down in the green zone but there's still a bit of flicker. When you blip the throttle it falls fast to 5 and then picks back up into the green. The meter we used is a $35 one from a good manufacturer. Found the vac guage straighforward to connect and a good way to tune things.

11-05-2021, 01:00 PM	#18
oak29 Junior Member Join Date: Oct 2016 Location: UK Posts: 10	Re: vacuum gauge as diagnostics tool thanks for feedback. We've sorted the problem. We rechecked the timing and points; gap had opened up to 25+ thou. We corrected it; and messed around with the timing in the end giving it a bit more advance. We also balanced the idle jet and gas valve for smoother running. She's ticking over much better and pulling better now. Feedback on vac guage and readings; first I suggest you get another model A that running well to compare against and take a video of the guage readings. We used my Ford Model A as the comparison. Taht way we could see what was normal flicker and a flicker caused by a real fault! At normal idle, the needle is flickering all over the place, so don't read too much into those readings. At a step above fast idle, the needle settles down in the green zone but there's still a bit of flicker. When you blip the throttle it falls fast to 5 and then picks back up into the green. The meter we used is a $35 one from a good manufacturer. Found the vac guage straighforward to connect and a good way to tune things.