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Recent content by Light in the Dark

  1. Light in the Dark

    Wellnut question

    If it makes the OP feel better, use a fuel rated thread sealer https://www.oreillyauto.com/detail/c/permatex/permatex-thread-sealant-with-ptfe/per0/80632
  2. Light in the Dark

    Wellnut question

    No teflon. The taper will seal the threads. There are instances where tape/dope is needed in a tapered thread application, but its not this one. This is not a pressurized fitting, just static pressure from the fuel.
  3. Light in the Dark

    Wellnut question

    Its been a fair few years since I did the swap on my machine, but I think the threads were tapered, eliminating the need?
  4. Light in the Dark

    MEP-803A Oil Pressure

    If you are concerned, many (myself included) have added a tee and a mechanical oil pressure gauge right behind the LOP switch. Its a good bit of redundancy to the factory gauge. https://www.steelsoldiers.com/threads/installed-mechanical-oil-pressure-gauge-on-mep-803a.178509/
  5. Light in the Dark

    MEP-803A Oil Pressure

    You should note an oil pressure drop as the viscosity lessens under normal operating temperature. The LOP switch trips at 15+/-3 PSI. As this engine has a mechanical oil pump, if the engines running... the oil is flowing. If your Rotella is semi-syn, realize this engine is spec'd to run...
  6. Light in the Dark

    Fuel drain for MEP 803A

    And I think I have a valve assembly off a skid of an 802 (think its the same as the tank drain on the 803, I will reconsult the TMs)
  7. Light in the Dark

    Fuel drain for MEP 803A

    Ive got some grey new style expansion, PM me your address.
  8. Light in the Dark

    Fuel drain for MEP 803A

    I think the O ring groove is key to sealing, which is why I would recommend the original 'ultimate well nut' upgrade. With the O ring in the groove, the sealing gasket is much more prone to properly sealing (where the ungrooved item, the gasket can distort for the reasons mentioned above. Plus...
  9. Light in the Dark

    Fuel drain for MEP 803A

    So you are looking for the brass drain, or the well nut? There are a number of low end copies of the 'ultimate well nut' that are on the market, that should be considered poor replacements. As 2Pb calls out, the right one has an O ring groove in the rear face of the bung assembly, and includes a...
  10. Light in the Dark

    MEP803a parts needed

    If your VR is crapped out, now is the time to get one better than stock: https://www.steelsoldiers.com/threads/mep-802a-mep-803a-ac-voltage-regulator.196939/ I think I have the HZ and PRC, not sure on the transducer.
  11. Light in the Dark

    Cleaning/disassembling the K1 AC Circuit Interrupter

    There should be (4) corner screws that you remove, for the cover to pop off.
  12. Light in the Dark

    MA Cummins Onan 220-4236-01 MEP-802A Stator NSN 6115-01-368-7159 88-20038 $700

    Available
  13. Light in the Dark

    MA Operator Control Gauge Cover for MEP-802A and MEP-803A (88-20198) $275

    Available
  14. Light in the Dark

    MA MEP-802A 5-7KW 1800RPM Genset - $2000

    Available
  15. Light in the Dark

    MA MEP-803A MEP-813A Replacement Door - Dead Crank (88-20077) or Starter Side ( 88-20078 ) $275

    Available
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