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That is one of the field diodes but not the one I was referring to. If you need that just look up field flash diode and you should have success getting the pn

#4 is running fine and making power. Had to make some Adjustments to the governor to bring the unit up to speed but other than that it looks like it just needed a longer preheat time to light of. Overall I got all 4 running and working handing a 5 kw load with easy, now to bring my load up to...

Well #3 is on line, the two diodes on A4 were replaced with the diodes that triple jim suggested and she fired right over making power. Moving onto #4 tomorrow with the ip and injector issues

Triple jim, thanks I think I should be able to get some tomorrow and see if I can get the field to flash

Well it's always the simple things that come back to bite you. Grounding issues back to the battery was the reason for the no pump condition. My A4 board has Cr1 and Cr4 Fried at the least. Does anyone know the specifics for these diodes otherwise I'll have to dig for it.thanks

Triple Jim, Thank you for confirming that I was thinking of a similar process after I opened the piston of one up. I think it is a wiring issue that I am having that causes a 24V reading when disconnected then an apparent short when connected to a pump. If it was not for a presumed working pump...

I am almost thinking that. Im still trying to figure out how the electro magnetic field pulses in the fuel pump or how it creates a reciprocation of the piston. I wonder if it is just the spring rate of the large spring at the bottom of the stroke exceeds the force from the coil and thus pumps...

Ok so im still stumped. I have voltage at the pumps and when you turn the switch to either purge setting you can feel the pump "thud" like the solenoid coil becomes active and the field is created but nothing happens. I took one pump apart to look at how its made and all these are are a solenoid...

IPs are fine just need to trouble shoot one unit. The wiring on #3 is my priority now

I have 2 units that are running fine so im lucky enough that I have a few references to use but thank you

That just occurred to me to check again but when I was ringing everything out the pumps all had to ground paths to the main frame since I did most of my probing to ground. I did find that the line that goes to the DCVR from the control box for a time was ringing as going to ground. I...

I did some additional probing of the DC side of things and I am perplexed as to why the fuel pumps will not run. I have verified that I have voltage to the pumps but am having a similar issue to what a few people have had. If one pump is plugged in the voltage goes down to 2-4V but when all...

I accicentally won two lots of 2 -002a's on a M103 trailer out of DE last week. Loaded them up and got them home no problem the hours were 351, 451 on one trailer and 351, 1 on the other with the latter trailer having better looking generators. All of the units had Mfd dates of 1982/3 and all...