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MEP 002A- FUEL STOP SELENOID

180
18
18
Location
Jackson NJ
Hello and how are you all doing. Been a while since I've been on the site.
So, my cousin has an 002 machine of mine. He doesn't run it often and it's been sitting for a while.
Last week he tried running it. The engine stop selenoid above the IP was not working. I gave him a spare I had, I tested it to make sure it worked .
He installed it and here is what happens-
Master start to crank- selenoid goes up
Engine cranks, starts to run
Engine builds oil pressure
Gets above 20 psi
Let's off crank to run position
Selenoid goes all the way down and shuts Engine off.
The selenoid wont stay up to allow Engine to run . Goes up during crank, but goes down in run position.
Told him to jump oil pressure switch . He did. Still won't stay up for run position
Possibilities?
I'm thinking high temp switch on cylinders
Broken wire on that circut
Possible bad master start switch?
Any ideas?
I'm going to go over there this weekend and try and trouble shoot.
Would the stop selenoid shorting ( it was definitely bad) damage something else ?
Thanks, Metalworker393
 

Guyfang

Moderator
Staff member
Moderator
17,744
26,438
113
Location
Burgkunstadt, Germany
Hello and how are you all doing. Been a while since I've been on the site.
So, my cousin has an 002 machine of mine. He doesn't run it often and it's been sitting for a while.
Last week he tried running it. The engine stop selenoid above the IP was not working. I gave him a spare I had, I tested it to make sure it worked .
He installed it and here is what happens-
Master start to crank- selenoid goes up
Engine cranks, starts to run
Engine builds oil pressure
Gets above 20 psi (try letting it stay in the run position 2-3 seconds longer)
Let's off crank to run position
Selenoid goes all the way down and shuts Engine off.
The selenoid wont stay up to allow Engine to run . Goes up during crank, but goes down in run position.
Told him to jump oil pressure switch . He did. Still won't stay up for run position
Possibilities?
I'm thinking high temp switch on cylinders (good place to start)
Broken wire on that circut (Could be. But first jump the temp switch)
Possible bad master start switch? (could be. Look at the Troubleshooting diagram to check it.)
Any ideas?
I'm going to go over there this weekend and try and trouble shoot.
Would the stop selenoid shorting ( it was definitely bad) damage something else ? ( No)
 
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