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Is the clicking sound coming from the relay? If so, use a test light or a volt meter to check each of the large terminals on the back of the relay. One of them is battery power and should be hot all of the time. The other large terminal only becomes hot when the relay is energized and it goes to...

I do see quite a few caged nuts as well. They seem to be pretty stout. The panel over the fuel tank received a bunch of these riv-nuts along with the caged nuts.

I’ve been playing around with these MEP generators for a few years now. Getting more acquainted with them each time I work on them. I recently picked up an MEP-803A 10kw unit with a bad oil leak from the rear main area. I ordered the seal and tackled that task yesterday. Not too bad at all, but...

That looks pretty stout! And, I may have jumped in too soon/without the correct experience too. I apologize if I have led you astray. When dealing with electrical power and the potential that comes with it, safety should be #1.

I would think that going directly to the main panel using an interlock would be the least expensive. I used 4/4 cable with a 60 amp breaker for my set up. I have a smaller generator, so 60 amp was all that I needed. I also installed an LED above the main panel which is wired directly to the main...

I have a 804b model, also with the Yanmar 2.0L turbo. It's interesting that we have two different alternators.

It appears that we have two different model of alternators. The one that I have is a Hitachi LR220-24V. I don't know if the internal parts are interchangeable.

It looks like the seller still has one left. if you type in HITACHI 20 Amp Alternator For Isuzu 4JB1 Engine 1988-On LR220-24 as a search you can see if this will work for you. I don't have any photos of the parts one that I have.

When I bid on my MEP-804b last September I failed to see that it didn't have an alternator on it. Of course I had to find one when I brought the unit home. I found a new one on eBay. It wasn't too awfully expensive but it arrived damaged. I contacted the seller and they sent me another one no...

I wish they were. Unfortunately the cast iron plates are just stacked and bolted in series. I believe there's 12 of them. By removing any of them it effectively lowers the resistance valve, going the wrong way.

Thank you both for your input. I purchased (2) of these brake resistor units yesterday. They're heavy, about 300 pounds ea. So even in series I have only 3 ohms. I really need something that I can switch on and off starting with 10 ohms, 8, 6 and 4 etc. And as you've both indicated heat...

I've been buying and selling the MEP generators for a couple of years now. When I "show" one to a perspective buyer I usually connect it to my shop main panel where I can turn on various different breakers to show that it's producing power. I've been looking for a load bank for a while now, and...

I've been buying and selling the MEP generators for a couple of years now. When I "show" one to a perspective buyer I usually connect it to my shop main panel where I can turn on various different breakers to show that it's producing power. I've been looking for a load bank for a while now, and...

I forgot to mention that the individual wires are very clearly labeled on these machines. When you look at the schematic on the inside of the access door it very clearly shows the correct location of all of the wires on the back of the alternator. If you have an ohm meter you can check the...

I was previously instructed by the very patient "Guy" to hold the S1 in the full right hand crank position for 4 - 5 seconds AFTER the engine starts. He was correct...this will clear up some of these faults that sometimes occur at start-up. It seems to be "a characteristic of the beast" for some...

Nice looking unit. I will hesitate to comment on the 240V capabilities of the MEP-804B as I simply don't have the experience. I double checked and everything in my house is ok with 208V, so I don't have an issue with using mine the way that it is. However, the 4 wire hook-up that you described...

Just a little extra personal experience with your specific generator. I've been using a MEP-804B as a whole house back-up power supply since September 2020. I live in Enumclaw, Washington and I lose power a few different times a year. The "unbalanced load" issue that has been discussed here...

Thank you kind sir. I appreciate your guidance!

Thanks for your help!

Good evening. I just picked up a MEP-804A from Iron Planet today. When I originally bid on this unit I didn't see that it was missing the alternator, although they did post a short video of the unit running. I have read a bunch of the manuals but I can't seem to come up with a part number for...