Posted by David G on August 03, 2015 at 21:51:58 from (97.127.128.228):
I ran the tractor about 3 hours tonight.
It is a lot easier to tune with the dyno, I set it at an RPM, then started loading it up. The auto tune took about 5 minutes at each step to get it right. I then move to the next RPM range and do it again
The timing tables I loaded make it sound quite a bit better, and the throttle response is also.
The engine runs out of snot right at 44 HP, adding fuel does no good at that point. I did not check to see if the governor opened it all the way up, so will do that next time. If it is open, I will remove air cleaner and see if that makes a difference. The next step after that would be to bore out the throttle body to the next size throttle plate I can get. I am thinking a JD 3020 might be a good fit.
The good news is that I am only up to 10ms second on fuel at full load. I would like to go to sequential injection so I can balance the outer cylinders to the inner ones on fuel. A siamese intake will always run one pair of cylinders leaner than the others. I have about 16ms of total fuel time with the cam that is in it now, so I have a little safety factor. Does anyone know if the 44 special or 444 had a different grind cam?
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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