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  1. #1
    Bronze Member DannyV's Avatar
    Join Date
    Oct 2004
    Posts
    55
    Location
    Santa fe, Texas
    Tractor
    Yanmar YM2200

    Default High Oil Pressure

    Okay guys here is another issue I am having while brush hoggin with my ym2200. Yup the oil pressure is showing high around 110 which is making me nervous. What should I do to troubleshoot that? The oil on the dipstick is showing its right on the mark.
    [img]/forums/images/graemlins/confused.gif[/img]

  2. #2
    Elite Member
    Join Date
    Mar 2002
    Posts
    3,512

    Default Re: High Oil Pressure

    More info needed. I'm not familiar with the YM2200, so is that an aftermarket sending unit, or oem? How long has it been that high, high at all rpm's, did you just install the gauge/sending unit, Is the oil really dirty? Possibly bad sending unit/gauge, dirty/wrong/too heavy oil.

  3. #3
    Bronze Member DannyV's Avatar
    Join Date
    Oct 2004
    Posts
    55
    Location
    Santa fe, Texas
    Tractor
    Yanmar YM2200

    Default Re: High Oil Pressure

    Need more info. Here ya go..Gauge/sending unit is original the way it came from overseas appears to be in good shape. It just sarted it yesterday while I was brush hoggin. I only use it for mowing and I am pretty sure it does it at all rpm's since it starts to go up 5 mins after use. The oil is black "real black" does that mean dirty since it was changed about 12 usage hours ago? I drained a little bit to check for any diesel fuel oder or water and didnt see any sign of it. I changed the oil/filter with Shell SAE 15W-40.
    [img]/forums/images/graemlins/crazy.gif[/img]

  4. #4
    Elite Member
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    Mar 2002
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    3,512

    Default Re: High Oil Pressure

    If it were mine, I would replace the sending unit and probably change the oil and filter again. That's the correct oil, but it shouldn't get "real black" that quick. My YM2000B has about 60 hours on the oil change and it still looks clean. Diesel tractor oil normally turns black, but that seems really quick.

  5. #5
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,804
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: High Oil Pressure

    Just for kicks.. I wonder if the filter is having a problem?

    Soundguy

  6. #6
    Elite Member
    Join Date
    Mar 2002
    Posts
    3,512

    Default Re: High Oil Pressure

    To tell the truth, this is the first time I ever heard of excessive oil pressure. I know a lot of gauges have a red area up around the 100psi mark, I guess, for a reason.

  7. #7

    Join Date
    Mar 2002
    Posts
    643
    Location
    Near Hagerstown, MD
    Tractor
    Yanmar models: YM1110D, YM1301D

    Default Re: High Oil Pressure

    You say you filled with Shell SAE 15W-40. Was that Shell Rotella T? I just want to make sure you used a diesel rated engine oil.

    It is also possible that the pressure regulator valve is sticking shut. But I don't understand why it would appear only after the tractor warms up.

  8. #8

    Join Date
    Oct 2004
    Posts
    442
    Location
    kansas (North East)
    Tractor
    YM 2210

    Default Re: High Oil Pressure

    Did you use the correct oil filter?

  9. #9
    Silver Member
    Join Date
    Apr 2004
    Posts
    237
    Location
    Thomasville, NC
    Tractor
    yanmar 1700

    Default Re: High Oil Pressure

    Danny,

    Like Greg said; make sure that that Shell oil is for diesel engines.

    Did you install an aftermarket oil filter (Fram, Purolator, etc.) or did you get from a supplier for OEM Yanmar filters?

  10. #10
    Bronze Member DannyV's Avatar
    Join Date
    Oct 2004
    Posts
    55
    Location
    Santa fe, Texas
    Tractor
    Yanmar YM2200

    Default Re: High Oil Pressure

    Well I never thought it could be the filter, but it is possible I guess. I was told a ym240 filter would be a good match from someone on here awhile back. I then went to the yanmar dealer that will only sell parts for the american yanmars and asked for a ym240 oil filter. The oil was Shell Rotella SAE 15w-40 for diesel/gasoline engines.

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