Well, here is an update on my problems...
Changed out the intake gasket.. it was fine
Changed out the intake/carb gasket and lower carb gasket. Better! 14 in and smoother.
Then I received an email from Dave Ray and he showed me a mod to the vacuum advance that made a lot of sense [img]smile.gif[/img]
I made the mod and used the tune up suggestions from Mark, combined with Dave's.
Tried the 36 and blue and silver springs. Pings
I then tried a bunch of spring combos at 36, but went back to the blue/silver, but at 34. very slight ping at lower RPMs when hot.
Then I played with the vaccum advance. It's limited to 8-10 degrees at 1 turn.
Starts right up hot and cold. idles smoother and just a hint ping under part throttle with high vacuum. Does not diesel anymore. I just have to fix the new problem of the GEN light staying on for 30 sec after it's shut off. Alt is new, so I think it is the volt reg.
All in all, I like how it is running. Not perfectly dialed in yet, but I'm going to let it break in more and play with it again.
Thanks to Mark, Dave and the others for their help!
Here is the stuff from Dave:
"This is the way the stop plate should be set up on the Crane advance. Use
8/32 hex head machine screw and #8 washer to retain the plate, then set the
stop to give 8 cranksjaft degres, then full manifold vacuum after setting
the initial. This is the default setting for idle timing, and the overall
idle should come out to 20/22 degres, so with 8 vacuum, and 14 initial, that
would give you the 22 the engine wants."