MEP-831A

[CCF73]

I have gotten a MEP-831A from my dad, he used it regularly and had no issues, it sat for a couple years. I have drained the fuel and replaced the filter. It starts up fine with power or pull start, runs for about 5 minutes then starts surging then dies. Any help with this would be greatly appreciated.

 

[DieselAddict]

Will it immediately restart and run OK?
Will it continue to run if you hold the speed control servo away from its magnet?

 

[CCF73]

Will it immediately restart and run OK?
Will it continue to run if you hold the speed control servo away from its magnet?

It will start right up but keep doing the same thing And I can control the speed control by hand and keep is somewhat the same rpm

 

[DieselAddict]

OK. If you can hold the speed control by hand and keep it running it eliminates a lot of possible problems.

Your problem of it running OK for a while then going crazy is one I've run into a number of times on these sets. Each time it was the speed control module behind the control panel flaking out. You can find the OEM ones around (currently one on ebay) or you can order a better than stock one from Kurt here on the forum.

He has a standard one that replaces the speed control functionally - https://www.steelsoldiers.com/threa...lc100-2990-01-477-1371-98-19539.190192/unread

Or one that adds remote control ability - https://www.steelsoldiers.com/threa...mote-start-governor-controllers.191540/unread

 

[Ray70]

FYI, I had the same issue a year or 2 ago. Threw in one of Kurt's controllers ( and after a little help from Kurt ) problem solved.
I would suggest verifying the adjustment on the control rods per the TM instructions first. If they are all correct, replace the controller.

 

[kloppk]

Ditto on DieselAddict's conclusion. The speed controllers or Governor Controllers are notorious for going flakey on the 831's.
I have both types of Governor Controllers in stock should you decide you'd like one.
Kurt