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  1. R

    MEP-003a No voltage

    I thought CVT1 as well, but he tested it and said it checked out OK, unless it has an intermittent problem? Guyfang is correct in that the windings through the CT assy. will be 3 wraps Vs 4 wraps, but testing with one from a 002A as-is will still work testing purposes.
  2. R

    804A with ~52hz and AC undervolt?

    This is surely a long shot, but how long are you holding the start switch after you start the machine? I've only worked on one 804 but have seen ( by others ) that you normally have to hold the switch in the start position an extremely long time ( as compared to the mechanical governor...
  3. R

    Recovering a M1061 trailer?

    SUCCESS! Recovery went off without a hitch. We even got back to the ferry just in time to catch the 1 hour earlier boat and were back in CT by 12:30. Trailer brakes were unlocked and she rolls fine. Pretty heavy, but my friend Dave's truck had no problem pulling or stopping. For sanity and...
  4. R

    MEP-003a No voltage

    As an option I have a couple parts machines ( MEP-002A's) I just bought, if you want, I can help with a linear reactor, CVT1 or even an AC reconnect box, if you want to either swap it out and test or buy and replace anything. I'm open to letting you borrow parts to test with ( just pay for...
  5. R

    Recovering a M1061 trailer?

    Thanks for the info and offer. Tomorrow 6:00am, catching the ferry in New London. This trailer has 2 MEP-003A gens up front and some kind of cord reels out back. I'm expecting tongue weight and overall trailer weight to be pretty significant in the current config. Bringing a couple different...
  6. R

    Recovering a M1061 trailer?

    Excellent advise everyone, thank you. I usually go pretty well prepared to all recoveries so this should be fine. I'll be bringing my normal set of tools, straps, tape, zip ties.... air tank, magnetic lights etc. Will be towing with a friend's Ram 3500 Dually and plan to drive from RI to Long...
  7. R

    Recovering a M1061 trailer?

    Could you guys give me a little insight into the 1061 brake system, I will be going to Long Island to recover one next week. I thought the air over hydraulic systems leave the brakes off when no air is supplied, like the M103 and older gen trailers? I won't have air on my recovery vehicle, so...
  8. R

    Not sure what to do with 2 MEP-003a

    I 2nd that motion! Check your throttle linkage as well, if it seems stuck spend a little time on the IP plunger before you crank it. I've had good luck removing the fuel line and hooking up a fitting and hose, mount it upwards and fill with carb. clean or lacquer thinner and let it sit a few...
  9. R

    MEP-803A oil leak

    Like everyone said, clean it and start it, watch for leak. If it appears to be flinging oil onto the gen. doors etc. its probably the crank seal behind the crank pulley. If so, its easy to fix. the seal goes into the front cover from the outside, just remove the lower pulley ( left hand thread...
  10. R

    MEP802a leak at injector well

    Fastbrass, to answer about the injectors, just remove the hold down clamp, remove the line and they pull straight out. of it's stuck a bit you can twist and pull on the flat area just below the fuel line. If they are frozen in tight ( not likely ) I have used a small slide hammer to pull them...
  11. R

    MEP-803A Hard cold starting

    Yes, there is a gasket on the side cover. Many times you can reuse it if it doesn't get damaged or just replace it. You can get an entire LPW4 gasket kit on ebay for under $70 or you will probably pay 1/2 that for just the side gasket from Onan. Here is a new relief valve...
  12. R

    MEP-803A Hard cold starting

    The relief valve is a 1" diameter tube about 6" long screwed into the back of the oil pump right next to the oil pump pickup tube. Its all the way to the left looking into the open engine side cover, points down on a 45 degree angle almost touching the bottom of the crankcase. Normally they can...
  13. R

    MEP-803A Hard cold starting

    If you start it and it quickly dies, then sounds like it has no compression when you try to restart it.... then you let it sit 1/2 hour and it has compression again.... that is the typical scenario when oil pressure goes too high and you hydrolock the lifters. This causes the valves to stay...
  14. R

    MEP-803A Hard cold starting

    I've seen this a couple times when the weather gets cold. Try putting a mechanical oil pressure gage in it. You need a gage with a 1/8" NPT thread. Screw it in in place of the original sender for the gage. Start it up and check the oil pressure immediately. If the pressure goes too high ( above...
  15. R

    MEP002A no start

    ****... I was hoping to revisit Hawaii.... only been once back in high school, played in the marching band and did a ceremony at the Pearl Harbor Memorial back in like 1987. Once you get them out, send me a PM and we can talk. Just pay the shipping costs( for the injectors... I'm too big for...
  16. R

    MEP002A no start

    If Storeman is no longer available, I've mentioned earlier that I can do them.
  17. R

    MEP002A no start

    Sounds like it's time to pull the injectors out and have a look. If your machine isn't very rusty, they should come out pretty easily. If you take the injector nozzle off you will probably find that the needle is stuck in the nozzle. You can try cleaning the needles and nozzles to free them up...
  18. R

    Changed fuel filters in MEP-803A... now it won't start.

    If you're saying the pin that fits into the slot in the fuel rack does not move freely ( swing left and right about 50 degrees ) then yes your pumps need attention. Before you go replacing them, get a gallon can of the "soaking type " carburator cleaner. Take the pumps out and soak them for a...
  19. R

    Help me identify these wires

    I've had several machines with a "Factory" installed ( if you want to call it that ) remote monitoring system that goes in place of the diagnostic connector. It connects to the gages and shut off switch, but not the output lugs. I assume it was used to remotely monitor and shut down the...
  20. R

    MEP-803A Injection Pump sticking

    Good advice Guyfang. You need the TM for reference, pictures and descriptions are invaluable. The fuel rack is the long stamped steel bar that sits inside the engine block, just under the metering pumps. It connects the governor and fuel stop lever to the arms on the metering pumps. It is...
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