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Thread: New old stock 803 break in oil.

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    Corporal
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    Default New old stock 803 break in oil.

    I have read up on the break in period and oil type posted here. My question borders on dumb question... none the less here goes. New old stock 803 17 real hours. Checked the genset fluids and found the (Break in oil) to be way over full. 1.5 inches too high on the stick. I drained out 2 liters. Still 1/4 inch high on the stick. Did verify correct stick. Is there a reason it was way over full? I assumed error and drained out the excess. I am not a motor guy and just wanted to ask to be 100% sure. Seems like a dumb question but I do not know for sure and wanted to not destroy a new motor.

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    General robson1015's Avatar
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    If in fact it's the right stick, I would drain it to the full mark. I have a mep-531A that won't run smooth if it has too much oil in it.

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    Thanks for the reply. . I verified the stick with another 803 and a 802. Like I said dumb question, but I am not a motor guy. Did take out 2 liter drink bottle full then checked it 9 more times to be sure over last two days. LOL

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    4 Star General Guyfang's Avatar
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    Most folks think the dip sticks are the same. That can lead to bad things!

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    Wow, 2 liters of excess oil is certainly an overfill! How did you drain the excess oil...from drain plug or fill port? If you only took oil off the top there potentially could be water on bottom of sump causing the oil level to read high. Did your unit have a working exhaust flap and was it closed when you received it? A missing or defective exhaust flap is a common water intrusion point allowing water to leak down exhaust and into cylinders and eventually into crankcase. Have you run this unit yet?
    Last edited by Chainbreaker; 07-14-2019 at 13:15.
    #1 House Gen PU-751/M: 1986 MEP-002a/M116A2 w/Aux Tank & OEM cover
    #2 Spare Gen PU-751/M: 1991 MEP-002a/M116A2 w/Aux Tank & OEM cover
    #3 Shop/Barn Gen NF-2 Enclosure: 19?? MEP-002a w/Aux Tank

    * Disclaimer - My comments on this forum are based on my opinion and my experiences only. Any information or suggestions I share could sometimes be inaccurate or misinterpreted. It is your responsibility to verify any information before using or to hire a professional.

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    Chainbreaker Good questions and thoughts. Yes 2 liter drink bottle full, drained from the bottom. It is new old stock , only 17 real hours. It had a bad hi temp switch that was not fixed and apparently shoved to the side. Yes the flap was down and in perfect shape. The oil did NOT have a water layer. Yes I have ran it 10 or so times about 20 minutes, and several times over an hour each. I have a 5 kw heater constant and a stove with oven set at 350 with the door ajar, 2 burners on high. When I walk by to admire the other 2 burners for a minute or so to max it out, then 2 off. The load varies from 50% to 110% ish during these runs. I had to do the fuse mod and did put in the MOV. The second new 803 has a very small pin hole leak in the radiator. Going to pull it this week hopefully and get it repaired by a shop that specializes in Rads. Great questions and appreciate the interactive questions. Will continue to run both and decide which one to keep and which to sale.

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    Chainbreaker (07-14-2019)

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