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The problem with picking an oil for these generators is their age, when they were introduced in the 1960's the military came out with their oil specifications for various operating conditions, which were mostly straight weight oils if memory serves. The problem is oils have changed in the last...

For the smaller sized 3-5KW generators it is hard to beat cube heaters and hair dryers at 1,200 - 1,500 watts each they make nice incremental loads, and are fairly portable, for larger units old electric cook tops are a cheap option. Ike

Starting with the things that are fixable, I would isolate the problem by doing a manual field flash test, by disconnecting the F1 and F2 wires (may be listed as F+/F-) from the voltage regulator and momentarily applying 12V to them through a small fuse (1-2 amp) with the generator running...

I agree the rusty screw on the hour meters is a good potential indication, but I will not pay a major price premium for a very low hour unit, and will only avoid VERY HIGH hour ones. I find there can be good deals be found on mid hour generators say in the 1,000 - 3,000 hour range, keep in...

I have a photo a mine (MEP-016D yanmar diesel retrofitted MEP-016c, but is the same control box), but it was done with a phone camera and is not clear enough to read the fine print markings. The left one is 6 position selects voltage Line to Line and Line to Neutral for the voltage meter, the...

One more thing, the 3 fuel pumps each have screw off bottoms and have filters inside, they may be mesh plastic types or the new white styrofoam looking ceramic ones. there is also a rubber gasket in the screw off lid along with a magnet. Gunk and sand may be on the gasket, so clean it up...

It is fairly simple, the worst thing about the MEP-016b is the awful TM, full of all sorts of MAJOR mistakes, wiring diagrams with the wrong voltages showing, etc.

I would suggest doing some more run testing, you may have a problem with a part going out once it warms up. This is not a fun thing to deal with in a real emergency. I guess your one of the lucky ones to have your MEP-016b wired to get 120/240V split phase when the knob is set for 240V (note...

Well a typical electric oven at full power draws something between 3700 and 7500 watts and you had it connected to a 3,000 watt generator, sure it is a very conservative 3,000 watts, but if you had the oven on, plus those other loads you were way over 3,000 watts. As to what did you fry, there...

It is hard to say without knowing your skill set, generators combine need for mechanical ability with electronic and electrical ability and if you make a mistake they have the ability to injure or kill you in a number of ways. Having said that just about anyone with basic electronics skills can...

Like they said, sounds like you cooked your voltage regulator, hope you know someone that knows how to solder and do electronic repair. There is a chance it may be something in addition to the voltage regulator also. Ike

Someone else was looking for one on here a month or so ago, and posted a message that they had found one. This is probably the most common missing part of a MEP-701a since it detaches at both sides by clips. Ike

If you do take it apart all the way at least invest in a $25 rebuild kit with all new rubber parts, you can find them on ebay, etc.

The twist type plastic nozzle I bought to try this out is rated at 36-39 GPM (straight stream vs 45-90 degree) at 25 psi, 50 GPM at 50 psi, and 66 GPM at 75 psi. It has a straight stream range of 36 ft at 25 psi, and 50 ft at 75 psi, which to me sounds like enough stand off range for any likely...

There is no real standard, but it seems hour meters are replaced at overhaul most of the time, they are also replaced when they die. I bought 3 MEP generators last month and have some reason to think that the hours showing on all 3 are possibly wrong: 1, MEP-016d - 0 hours showing, but had...

Saturn Surplus shows them on their web page, of course they are in PA, and I don't think their page has changed in year. Ike

Yanmar rates the L-100 engine used on the MEP-016e at around .58 -.66 GPH at full load and around .34-.38 GPH at half load depending on the exact version of the L100 (L100A, L100AE, L100V, etc.) model and source of information. In the commercial world these are usually mated with 6,000 - 6,500...

Ok for those of you that may buy one of these pumps in the future, I tried mine out today, filled it with fuel and oil, and put about a gallon of water down the outlet fitting to do the initial prime per the TM. I then connected a 25 ft suction hose with a strainer on the end and tossed it into...

The knurled knob adjusts the amount of droop when load is applied, inward makes it less sensitive/more droop, outward is more sensitive/less droop, but setting too sensitive causes instability.

One note here, any time you are opening up a cover or removing a line from an injection pump you want as close to clean room conditions as possible, one little fleck of paint in the wrong place can clog an injection pump. Ike