Re: Mike's 53 Clipper

Posted by Tobs On 2017/6/2 1:59:44

Thanks for the pointers. Working about 1/2 hour each day this week before going to work in the morning I was able to hook up my voltage gauge and vacuum gauge. I put a T right before the vacuum pump on the line that goes between the fuel/vac pump and the intake manifold. Vac signal is still low. I started out at 15 inches of Mercury, and after crawling in traffic for 15 min, my signal went down to about 12. That's too low. Idle should be 18. In the parking lot at work this morning, I richened the idle mixture a little, and got it back up to 15 inches, and the idle smoothed out. The idle was too lean before.
It looks like I still have a vac leak someplace. On the way home today, I will remove the T connection, so that I have only the vac signal from the intake manifold, and not any interference in measurement from the vac pump. I don't know if that is confusing my measurement.
I will soon check around the carb base and starter switch for leaks as Ross suggested...
The vac gauge is very cool. Learning as I go, and I think I am slowly improving things with time!