Mep 831A load issues

[grywitt]

I see in the pics and videos that somewhere in it's life someone cut the safety wires off the two mechanical governor adjustments. Not good... Those are adjusted at the factory and normally would not ever be messed with. Someone messed with those adjustments.
In the short video the governor arm does not stick to the magnet causing problems with not shutting down properly. My hunch is that someone messed with the strength of the magnet and now it's not strong enough.
The magnet strength can be adjusted. If you loosen the nut securing it to the bracket you can rotate the magnet inside the round collar to move it closer to the collar opening to make it stronger.
The magnet strength has to be set strong enough for the arm to stick to it at shutdown but no so strong that the Governor Controller can't pop it off the magnet at startup.

Is the rod adjusted so the gap is set to 5/16" running at no load?

I do have it set to 5/16 at no load. That little piece of lead just fell off in the last couple days. It was only hanging on by one side and I've been moving the gen around to get the exhaust off and stuff. The magnet not holding just happened basically over night. I can promise I didn't need with the magnet and I don't think I bumped and bent it either but it stopped holding. I'm kind of baffled on that part.

I guess I can move the magnet out and keep really close track of how much I move it.

 

[grywitt]

I see in the pics and videos that somewhere in it's life someone cut the safety wires off the two mechanical governor adjustments. Not good... Those are adjusted at the factory and normally would not ever be messed with. Someone messed with those adjustments.
In the short video the governor arm does not stick to the magnet causing problems with not shutting down properly. My hunch is that someone messed with the strength of the magnet and now it's not strong enough.
The magnet strength can be adjusted. If you loosen the nut securing it to the bracket you can rotate the magnet inside the round collar to move it closer to the collar opening to make it stronger.
The magnet strength has to be set strong enough for the arm to stick to it at shutdown but no so strong that the Governor Controller can't pop it off the magnet at startup.

Is the rod adjusted so the gap is set to 5/16" running at no load?

 

[grywitt]

I do have it set to 5/16 at no load. That little piece of lead just fell off in the last couple days. It was only hanging on by one side and I've been moving the gen around to get the exhaust off and stuff. The magnet not holding just happened basically over night. I can promise I didn't need with the magnet and I don't think I bumped and bent it either but it stopped holding. I'm kind of baffled on that part.

I guess I can move the magnet out and keep really close track of how much I move it.

Sorry I really need to get better at proof reading before i send. Sometimes I go back and i have a hard time figuring out what I was saying. " I didn't mess with the magnet "

 

[grywitt]

Well this morning was pretty informative. Apparently the times I've held 3kw were all first run of the day. Today it held 3kw for a bit before starting to choke. Also thank you kloppk for the magnet fix. The tms say don't touch that so I haven't but I moved it just enough to grab the arm and now my not shutting down problem is gone. Yay!!

In reading the TMs the one thing comon to my problem seems to be injector. I ordered one with the same part number as the TM calls out but it's too long. 714350 53100 yes? I'll keep trying. This gen will run great eventually.

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I see in the pics and videos that somewhere in it's life someone cut the safety wires off the two mechanical governor adjustments. Not good... Those are adjusted at the factory and normally would not ever be messed with. Someone messed with those adjustments.
In the short video the governor arm does not stick to the magnet causing problems with not shutting down properly. My hunch is that someone messed with the strength of the magnet and now it's not strong enough.
The magnet strength can be adjusted. If you loosen the nut securing it to the bracket you can rotate the magnet inside the round collar to move it closer to the collar opening to make it stronger.
The magnet strength has to be set strong enough for the arm to stick to it at shutdown but no so strong that the Governor Controller can't pop it off the magnet at startup.

Is the rod adjusted so the gap is set to 5/16" running at no load?

BTW. I was out there checking voltages ect and with no load 5/16 gap I'm running 172 and with load 2.75kw a high as she will hold I'm at 186. Is this acceptable with how you've built the boards? I did run with the actuator held open and adjusted the throttle to 219 like the instructions say

 

[kloppk]

Well this morning was pretty informative. Apparently the times I've held 3kw were all first run of the day. Today it held 3kw for a bit before starting to choke. Also thank you kloppk for the magnet fix. The tms say don't touch that so I haven't but I moved it just enough to grab the arm and now my not shutting down problem is gone. Yay!!

In reading the TMs the one thing comon to my problem seems to be injector. I ordered one with the same part number as the TM calls out but it's too long. 714350 53100 yes? I'll keep trying. This gen will run great eventually.

- YouTube

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

youtube.com

BTW. I was out there checking voltages ect and with no load 5/16 gap I'm running 172 and with load 2.75kw a high as she will hold I'm at 186. Is this acceptable with how you've built the boards? I did run with the actuator held open and adjusted the throttle to 219 like the instructions say

Close enough.
My board measures the AC Frequency to measure the engine RPM. So, at no load the RPM should be about 3,050 RPM (254 Hz PMA Frequency).
It adjusts the throttle to achieve the required RPM based on the Load signal from the inverter so that the engine RPM is correct for the load.

 

[grywitt]

Close enough.
My board measures the AC Frequency to measure the engine RPM. So, at no load the RPM should be about 3,050 RPM (254 Hz PMA Frequency).
It adjusts the throttle to achieve the required RPM based on the Load signal from the inverter so that the engine RPM is correct for the load.

Copy that. Thank you. I figured but right now I'm trying to make sure I check every possibility. So the not shutting down came back again. I'm pretty sure i got it now. The actuator arm is/ was slipping on its rod. It had been squeezed down to much and I'm still not sure it won't again but I seem to have it holding. Thanks again for your time.