Did you check your oil water separator ???? Holding the start/run that long (beyond 15 seconds) likely not a good idea. It doesn’t quite sound like it’s getting up to speed. Clearly if the quality of the diesel has diminished it can lead to issues as well as condition of air intake but I may be stating obvious points you are well aware of. What did you eventually discover ?
I have a Mep805b the computer detects the engine has low oil pressure I change the sensor and still detecting that fault but I check and it does have great pressure. Can you help me get it running?
Have you tried shorting the pressure switch? Not the yellow and black wires (power)…. The other two you can short the pins and see if it starts. Once started you can pull the jumper to see if it keeps running with the sudden pressure change. Do not let run like this long or you may have a runaway generator that won’t stop!! If oil pressure is wrong it could take off and you have to cover air intake to kill it.
@@NewEnglandReptile I just took it to some one that change the computer sistem and is running great. I couldn’t wait to find the problem so we decided to eliminate the whole sistem and make it work with a different one.
Noting that the overspeed fault light is lit, either the governor setpoint or the overspeed circuit were probably the cause.
Thanks for the advice.
You have to have the solenoid hooked up to the wiring for it as that is how the speed is set to maintain hertz. I have three of these.....
That is why the overspeed light is constantly lit
Cool. Thanks for the info.
Hi do you have experience with 806B? I have a few issues with different ones. Thank you
The crank switch in the engine compartment needs to be in the normal position
Thanks.
Did you check your oil water separator ???? Holding the start/run that long (beyond 15 seconds) likely not a good idea. It doesn’t quite sound like it’s getting up to speed. Clearly if the quality of the diesel has diminished it can lead to issues as well as condition of air intake but I may be stating obvious points you are well aware of. What did you eventually discover ?
We sold it as is. It was discovered that there was an electrical issue. Thanks
Worked on so many of these. Definitely miss all the guys I served with.
Sounded like it wanted to runaway from ya.
Thanks for watching
I have a 804b that will not crank, doesn’t look like the governor control is getting power any suggestions
I’d look for a fuse first. Good luck.
I have a Mep805b the computer detects the engine has low oil pressure I change the sensor and still detecting that fault but I check and it does have great pressure. Can you help me get it running?
Thanks for inquiring. We sold this unit as is. I gave up trying to figure it out. I’m not sure who to send you to. Sorry.
Get on some military forums and find an army mechanic who worked on these things
Have you tried shorting the pressure switch? Not the yellow and black wires (power)…. The other two you can short the pins and see if it starts. Once started you can pull the jumper to see if it keeps running with the sudden pressure change. Do not let run like this long or you may have a runaway generator that won’t stop!! If oil pressure is wrong it could take off and you have to cover air intake to kill it.
@@NewEnglandReptile I just took it to some one that change the computer sistem and is running great.
I couldn’t wait to find the problem so we decided to eliminate the whole sistem and make it work with a different one.
What year was this Mep-805b?
Not sure. Thanks
This is a 805A series (analog)