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Couple questions regarding retrofit, do you guys know how many ohms the HZ adjustment knob is and what's the operating frequency of the MPU (how many teeth on the flywheel)? Thanks.

Pretty sure I've narrowed it down to the woodward governor controller. I basically ran 24v straight from battery right to the controller, installed a new MPU (just in case) and monitored VAC on the ACT output, it would slooowly climb from 13.7VAC to about 14.4VAC and hold there for a while, then...

Yeah that's a good idea and roughly what I'm thinking is going on

you mean the 2 coming up from the load measurement area? I've taken them apart, sprayed some electrical parts cleaner and put some dielectric in them. Didn't make any difference. My friend bypassed S1 today, made no difference, machine started well, and ran for about 4-5 minutes then shut down...

These tests would only apply if the starter clunks and immediately disengages right? I'll try to go over these anyhow just in case. This doesn't address the shutdown after a few minutes problem does it? I'm really confused what correlation a short crank and shutdown after a few minutes of...

I tested the switch like that and it checks out, the failure is very sporadic. The machine sometimes just clunks and no crank, other times it'll crank for a second and not start, other times start and run for like 10 minutes then die on its own. I'm guessing the switch is possibly iffy and goes...

That's a good question, what's the best way to test that thing? I guess we can just put a jumper to pin 3 from 2,4,6,8 to simulate "RUN" and then a jumper to pin 7 for start signal. I'll see if my friend can try that and get back with the result.

Just did some more careful reading of the schematics and noticed that the LMU is basically directly connected to the governor at pins 11 & 12 and 13 & 14 go off to the paralleling connection. Could the LMU being fully disconnected (it's in there and powered but not getting any input from the...

So seems like the "no-start" issue didn't really go away, it's just so intermittent that it "fixed" itself for a while. Since april my friend used the generator almost daily until last week when it stopped starting again, just click and nothing. At this point I went over there and ran some...

My friend swears he never even opened the control panel since I dropped off the machine at his house after swapping out the gen-head. lol, who knows.

So It's "fixed" now, but I'm not sure why or how it worked before. I noticed that the frequency selector switch (50/60Hz) was set to 50, i flipped it over to 60 and it fired up O_O but was reading low frequency, so i just dialed up the FREQ dial on the governor up to 60 and now it's running...

Does the fault indicator feed back into the governor controller? Because the controller itself triggers the starter cutoff. If so maybe I could just disconnect/bypass the fault indicator thing to at least get the engine running and make sure the governor itself is working fine. If so, do you...

Oh, I just found what you mean by Quad MWO, I think this machine actually had this fault. The whole generator head blew up a few months back and was repalced by a mechanically matching one, but it's no longer 3 phase, so none of those wires/gauges do anything anymore, The control panel just...

Yean, at some point in the past the machine had some overspeed relay installed on top of the existing woodward controller, I tried disconnecting all its wires and it made no difference. I'm not sure what a Quad MWO is, can you be a bit more specific? As for the fault indicator plug. Do you...

Hi Guys, I'm new here, helping a friend of mine with his MEP-804A generator. The machine ran great and started really quick then suddenly one day it stopped starting. What's happening is when you turn the knob to START it'll bump the starter for a moment (maybe 1/2 second or less) and then cut...