I just came inside from running through the controller setup again.
Put mechanical governor lower screw at 0.9in away from the plate it screws into.
Got my voltage readings right where they should be at all the stages. After going through the adjustments to the controller so many times, it goes rather quickly.
I noticed now that at full load, the rod is lifting out of the lever by about 1/4 in. I looked as best I could with a hot engine running & it seems that the lever isn't lifting up all the way to the little spring loaded nipple at the end of the lower governor screw.
Either way, I was getting proper reading between A & B on the controller.
Any thoughts or input anyone?
I'm thinking maybe to just let it run a bit under load as it may need some time to clean itself out? Possibly a bad/worn spring on all the governor parts?
Fuel generally can be an issue with diesel not coming up to proper RPM but the fuel all seems to be fine. Brand new filter. Tank was pretty clean.
Since it seems to be at the governor, I'm not sure it's a controller issue.
Will mess with it more & if anything improves, I will report back.