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I went out early this morning and doused the AC voltage switch with wd-40. I got the switch to work as intended. I didn't have a chance to start up the unit since it was early on a sunday. What do you guys suggest with the diodes? Clean them up with some baking soda? Or are they shot?

Got out to the genset today. Took off the back cover off of the generator head and looked the excitor wires. Every thing looked intact. I poked around and no broken wires. I blew out the generator housing. Lots of dust and dirt hiding in there. I started her up and no voltage. I checked pin 27...

Im going to investigate where to find the exciter wires. I would like to rule it out before I order a new VR. I hope its the VR so I can put these gremlins to rest!

Sorry for the long wait time. I went out a tested pin 27 on the starter switch. While holding the switch to start after the set was running, I had 23.7 volts on the pin. I had no AC voltage. I tried turning the switch to start after the set was running and it did not change the AC voltage. An...

I will start the set this afternoon and test the starter switch. I usually hold it for a second or two after the unit is running. I'll also take a picture of the switch. Only have a video that shows the switch and I can't upload videos off my phone.

Finally had some daylight hours to continue the diagnosis of the genset. I went into the control area and tightened down every screw connection I could see. Also when to the distribution box and tighten down T3. After starting up the unit, I was reading 140 volts on the 110/220 setting. The...

If your going to perform this entire project at home, wouldnt it be easier to just buy a cheap 220 stick welder with variable voltage? Something like a buzz box or a miller thunderbolt would be perfect for your 7018 or 6011. There not expensive used and run on a regular 30 amp 220 plug. I used...

Thanks Jim for the info. That's good to know. So when running the engine below 1800rpm, what does that affect? Also is there any other way to tell what rpm the motor is running besides the frequency gauge?

When I first bought the unit, the throttle cable was broken. In the process of getting her running and then replacing the cable, the unit did idle. Not for extended times but a few minutes here and there. My question is, do the transistors fail imediately or take time to fail? The unit ran...

Jim, The video was with the battery connected. After the video, I did reconnect the wires as they should be on T3. The gen gave The same results with the voltage swinging. I have not been back outside to work with the unit anymore. It's been 20 degrees or less lately so I haven't been...

Not that I am in the Boston area, but I do know there are a handful of guys, especially on the coast and the cape. There are also a few clubs in the NE area. It cant hurt to make some friends and see what else is out there.

Ive been repairing my mep003a recently. It was producing electricity as it should and then I moved the unit from the truck to trailer. I went to start up the unit the other day and now while having the selector on 120/240 volts, the voltage gauge was reading 140 volts. I tested the lugs and...

Any pics or a link to the tool for the upper castle nuts? With my luck, mine will fail and I rather make the tool than disassemble half the rear end suspension to change them out.

Hey gang, Im heading to Cape Cod area end of the month. If someone needs something brought from NYC to Cape Cod, I have room on the 5 ton. Also have a hoist on the truck to lift heavier objects, up to 1500 lbs. PM me.

I went out last night and wired in a new fuse temporarily. After a few attempts to start her up at 27F, I did get some readings. At the wire with the red marking, I had 26.6 volts compared to a reading of 25.4 volts at the batteries. Stator readings were 27.2 to 27.4 volts. Seems that the...

Thanks Guyfang. I have looked through the TMs on here. I'm still learning the machine. My fuse holder was smashed when I got the genset, so I never knew there was one until I looked in the TM. I'll wiring in a fuse tonight and see what type of reading I get. Thanks for the help!

Makes sense now! thanks for explaining. What size is the fuse?

Hey Jim, I had my genset connected to my 5 ton at the time of testing. No change in voltage with or without batteries when the set was running.

Hello everyone, looking for some advice on the D.C. Charging system on my mep003a. The unit runs and operates as it should besides charging the batteries. I read the thread on checking the D.C. System and have come up with the following findings. I'm not sure if the stator is bad or the...

Welcome to the site and green diesease hobby from a fellow Long Islander! If you see a 5 ton around the deer park area, its probably me.