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  1. 2

    1969 MEP 10K Generator

    @jimmr Photos might be helpful.
  2. 2

    MEP 803A - Clueless in Texas

    I think that it is really is better to follow the TM for starting and troubleshooting. The various safety and control features of these generators do run via the prime / run switch. So if that isn't working, I would start there. Jumping around can cause more issues than just following the...
  3. 2

    MEP 803A - Clueless in Texas

    Can you give a little more detail please? When you replaced the filter, did you bleed the air out of the high pressure lines? How exactly have you been starting it? Are any of the red lights coming on? Which green lights? If you look inside the front panel, switches have a label by them...
  4. 2

    Air filter element MEP007 genset

    Yesterday, for fun, I tried cross referencing all of the listed manufacturer's part numbers for the NSN above, and the one and only one that I could find was Oshkosh, who were willing to price it and price the shipping. I freely admit that failure to find is not the same as not existing...
  5. 2

    MEP-831A - Huge amount of exhaust smoke

    @zapp, yes those seals look pretty toasted. Congratulations on getting into the engine this far. All the best, 2Pbfeet
  6. 2

    Air filter element MEP007 genset

    While Oshkosh supposedly has them in stock, but at $200 for one, shipped, I wonder if devilman's suggestion above to replace the whole intake assembly makes more practical sense.🤷‍♂️
  7. 2

    Mep003 voltage drop after 7500w

    Thanks for sharing the video link! That video is a fascinating and very informative look at the rather sophisticated (I think) control system. It seems quite clever, and definitely an unusual solution in my experience. Do you have any insights about why a magnetic control system was used...
  8. 2

    Mep003 voltage drop after 7500w

    @kloppk is the expert. If it were me, I would double check the wires and the wire terminals to wire connections to be sure that there isn't some loose wire(s) or internal corrosion that is causing extra resistance, and overloading the AVR. I would also give the entire field wiring circuit from...
  9. 2

    MEP-805B Magnetic Speed Pickup (MSP) Missing.

    If it were me, I would try a 5/8-18 bolt before going too much farther. I can't count the number of times I was sure that I had eyeballed the size of a bolt, only to be off. Is an MSP675C a compact version of an MSP675? All the best, 2Pbfeet
  10. 2

    MEP-803a Measuring current on L1 in 120/240V

    If it is of concern, I think that It is straightforward to install a pair of aftermarket digital ammeters, or check with a clamp on meter.
  11. 2

    Wellnut question

    Great memory! Yes, the inner thread is 1/4-18 NPT (National Pipe Taper) taper thread. All the best, 2Pbfeet
  12. 2

    Wellnut question

    I don't. Bits of Teflon tape are said not play nice with diesel injectors, and I have never wanted to put it to the test. All the best, 2Pbfeet
  13. 2

    MEP-831A - Huge amount of exhaust smoke

    Personally, I like the L-series Yanmar engines. They are built like tanks and are about as simple as diesels can be, making a great place to learn for folks who want to. The simplicity reminds me of a more modern version of the original Lister engines that you could find all over Africa and...
  14. 2

    MEP-831A - Huge amount of exhaust smoke

    If it were me, I wouldn't rush to make this a parts machine. Yanmar part are easy to come by, though OEM parts can be on the not so cheap side. Given what you have found, it seems as if you have an oil leak, probably either a valve guide or a ring, or a cracked piston. If it were me, I would...
  15. 2

    Fuel drain for MEP 803A

    The original style rubber expansion well nuts have had issues for many folks. The replacement model bulkhead fitting that I posted above has worked for me. As it is brass and viton, it should be relatively unaffected by diesel and oxidation. In principle, the solid brass fittings should seal...
  16. 2

    Fuel drain for MEP 803A

    Are you looking for this item? https://farmerbobsparts.com/brass-bulkhead-fitting-1-4-fpt-i-d-w-3-4-required-tank-hole-size If so, I can confirm that the ones I purchased came with viton o-rings. Note: these are the bulkhead fittings with flats on the threads for a wrench to make installation...
  17. 2

    Cleaning/disassembling the K1 AC Circuit Interrupter

    DeOxIt is my go to cleaner/deoxidizer. I think that there is a difference between clean (free of gunk), and electrically clean (free of oxides and other insulating materials). You want the latter. DeOxIt isn't cheap, but a little goes a long, long way, so the cost/use ends up being not much. If...
  18. 2

    MEP501 28v to 120v

    Most should accept 28V as it is in the range of charging voltages for a 24V battery bank, e.g. this pure sine 2kW inverter accepts 21-31V https://www.amazon.com/EDECOA-Power-Inverter-Outlets-Terminal/dp/B08TWDFZBC I've never used this brand above personally, so I can't comment on it otherwise...
  19. 2

    MEP501 28v to 120v

    Depending on what you want the power for, you might look for a 24V inverter to get your 120VAC. Prices have come down a lot, though I give you that a bunch of power semiconductors might not have the reliability of a copper coil. Good luck, 2Pbfeet
  20. 2

    Please recommend a transfer switch

    Perhaps it is just me, but I think that if you have, or might have, youngsters around, I would consider putting a lock on the cover of those open transfer switches, if possible, to keep little fingers out of the live contacts and wires inside. I realize that they are UL listed, and have an...
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