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Search results

  1. J

    New to me MEP-802 low fuel light on

    Your float in the fuel tank is more than likely malfunctioning. You will have to take the back cover off where you refill the tank, to gain access to the fuel tank. The float is to the left and closest to you. Its held in with 4 screws, then disconnect the electrical connection with the quick...
  2. J

    803a vibration

    I take the temperatures on the head, right below where it attaches to the exhaust manifold. You'll have 4 flat portions of the head, it's about even with the oil pressure sending unit. Temperatures usually are 190-198 with no load and there will be about 1-2 degrees difference.
  3. J

    MEP-803A 751-42670/5 Pistons?

    What part number did you use for the pistons? Like Guy said, power wash everything except the control cubicle and directly into the back of the generator head. If it has a lot of sand buildup, then be ready to wash it twice. I can power wash all the sand away, then start it up and then its...
  4. J

    803a vibration

    Have you put a load on it yet? You could have an injector not firing correctly causing the vibration. Usually it won't hold a 10kw load with a bad injector. Also, could be the mounts. I believe the mounts for the 802a are little softer and if someone mismatched the mounts, it would cause more...
  5. J

    what this plate means

    Here's a link to the old style fuel pump. The pictures include the part number you need. southernsurplusinc.com/media/department-of-defense-88-20479-electrical-fuel-pump-nsn-2910015015642-generator-14080502/
  6. J

    what this plate means

    Did you read the description on the fuel pump? I don't believe its going to work with your application. Its a specialized pump that is not made for continuous use.
  7. J

    MEP-803A issue... Won't start... HELP?!?!?!

    You may want to try to put the hard lines back on and then try to start. It will take a little while for the air to get out of the lines so don't give up. Try to crank for 20seconds, stop wait about a minute, then try again. Some times it takes 5 or more tries before you'll see smoke coming out...
  8. J

    MEP-803A issue... Won't start... HELP?!?!?!

    I doubt your ip is bad, it just has varnish build up from sitting. I have several customers that have 10,000 hours plus on the original injectors and pumps so don't think they are bad. The only time I have had to replace one was when it was leaking into the block. All the others were easily...
  9. J

    MEP-803A issue... Won't start... HELP?!?!?!

    More than likely the plungers are stuck in pump. What I do is take one pump out at a time, then take the tops off (were the hard line hooks to), then soak it in carburetor cleaner for a few hours. Then hold the pump in your hand with the bottom (spring portion) in your palm and squeeze so your...
  10. J

    Lister/Onan LPW2/DN2M

    dpequip, are you the guys that sell a lot of parts on the big auction site under dpequipment? If so I've bought several high quality OEM parts from you and been very satisfied.
  11. J

    newer 803A smokes and bogs down with load ... start with injectors?

    Sounds like you have an injector leaking after shutdown. So when you start it, the cylinder is filled with diesel and it needs time to burn it off. Raw diesel burns blue, has a very noticeable smell and will burn the mess out of your eyes when you get up close or in an enclosed area. To verify...
  12. J

    newer 803A smokes and bogs down with load ... start with injectors?

    Change the fuel filters first. Then buy a cheap IR thermometer at any parts store and take temperature readings at each exhaust section. The exhaust manifold protrudes at each cylinder when you looking at from the side, its about level with the oil pressure fault sender. Take your readings for...
  13. J

    My (new to me) MEP-803a won't crank from start switch.

    Faria 12801 works.
  14. J

    My (new to me) MEP-803a won't crank from start switch.

    Yes, you can bypass the circuit by unplugging the float sender and jumping connector 3 & 4. Look at the schematics and get the wire numbers to know exactly which ones to jump. Someone may have zipped tied them so they could get a newer unit. Check the bulb, I bet that's been removed too.
  15. J

    My (new to me) MEP-803a won't crank from start switch.

    More than likely its the low fuel fault, see if the light is working and then see if it comes on when the pump shuts off. That is about the only thing that would cause the fuel pump to stop and the switch not to start. One time I had this happen and the light was blown, took me forever to...
  16. J

    what this plate means

    Just from my experience on buying units with that particular tag has been great. The tag below the hertz gauge tells you that the motor was replaced and they write the hours of the unit when it was replaced. I've bought several really cheap because they have high hours but people don't know what...
  17. J

    what this plate means

    You did awesome. Since the tag says 4395 and the unit has 4400 on the clock, that means the engine only has 5 hours on it. Run it with break in oil for the first 100 hours to make sure you have a good break in period. If you have time will you report back as to what the tag under the hertz gauge...
  18. J

    MEP 803a Remote start options without ATS but leveraging remote start kit.

    Just to help you. Buy the unit from inovahightech.com because they are the original manufacture. Green Mountain just bought a bunch when they first developed the boards and are reselling them. Peter is the owner of inovahightech and will be able to answer any questions that may arise. With my...
  19. J

    what this plate means

    Marcos, let us know what the tag under the Hertz gauge says and the hours that is written on the line. That hour reading will be when the engine was replaced.
  20. J

    what this plate means

    That plate is mainly for the engine only. It means the engine was replaced in 2012, along with some other updates. Look at the tag under the hertz gauge and that will tell you the hours that the engine was replaced. They usually wrote it with a black marker. From the looks, I bet the engine was...
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