Decided they both need a complete overhaul. I've ordered a pressure gauge to test the pumps--should be here Monday. I stripped the larger down about as far as it goes. I drained and flushed the tank--just a little junk in there. I Cleaned the fuel intake filter--removed a bit of stuff. I took apart the nozzle--it looked perfect but I cleaned with carb cleaner and a q-tip. I took the compressor apart and I'm going to clean the rotor, vanes and housing tomorrow as well as the air filters. It's possible the ball that regulates pressure was stuck--it didn't fall out on it's own when the set screw and spring were removed--took a good tap to get it to drop out. If if was stuck that might cause high air pressure. After this I'll check the pressure Monday when I get the gauge and I can also check motor speed with an optical tach I recently got. Hopefully with all that done it will work.
QUESTION, Is my assumption that the compressor pump does not require lubrication correct? A Youtube video said use graphite but I think that'll just add graphite dust into the compressed air which will have to be filtered out by one of those filters. I haven't found any manuals or manufacturer instructions they say to lube it in any way.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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