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Thread: Mep814a

  1. #11
    4 Star General Guyfang's Avatar
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    The 804B has a mechanical pump. So you don't hear anything in the run position.

    Food for thought:
    1. Did you get the S1 hooked up right?
    2. Is it the right S1, and what type is it? There are 3 versions.
    3.When the S1 is in the run or start position, the Electric actuator should pull down. Did it?
    4. Did you use the hand pump to help prime the system?
    Last edited by Guyfang; 01-30-2019 at 12:27.

  2. #12
    Private Oznog's Avatar
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    I think the S1 is correct. Once the generator starts, it runs fine. Starting is the issue. Once I found the manual, I tested the resistance of the glow plugs and found 2 of them to be shorted and 2 of them were over 4.8 ohms (open). I replaced the fuel filters and used the hand pump to prime, loosening the bleeder screws on the injector pump. Is there a better method? I'm not sure where the electric actuator is or how to test.

  3. #13
    4 Star General Guyfang's Avatar
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    Open the parts TM, TM 9-6115-643-24P, (PDF reader page number 15 Figure 21. Engine Accessories (Sheet 5 of 5). Look for item 77. It hooks to the back of the injector pump, and the governor tells it how fast to make the engine go. Or, tells it to start and stop. There is a cannon plug on the wire harness, that hooks to the Actuator. Disconnect it from the actuator, and have someone use the S1 to try and start the set. You should read 24 volts at the cannon plug. If you do not have 24 volts at the plug, I would then check the Magnetic pickup. The Mag pickup has to function right, (count the teeth of the flywheel, and send a signal to the electric governor. Test and adjustment procedure are in the -24 manual.

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    Oznog (01-30-2019)

  5. #14
    Private Oznog's Avatar
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    I got the glow plugs replaced. New fuel filter and fuel/water separator. I hand primed the system. After many tries I got it to start. I let it run for 3 hours. Shut it down. No restart. Any advice?

  6. #15
    4 Star General Guyfang's Avatar
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    How did you get it to start? Did you check the mag pickup?

  7. #16
    Private Oznog's Avatar
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    So I found the mag pickup. Took it out, cleaned, reinstalled, and adjusted. It started right up. I'm buying a new one to keep on hand. NPN 6695-01-367-9723 if anyone needs one. Thanks Guyfang for all the information and advice.

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    Guyfang (02-07-2019)

  9. #17
    4 Star General Guyfang's Avatar
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    Good to go!! Glad it worked out. And thanks for closing the loop.

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