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Compressor belt on an OM366

Discussion in 'Generators/Gensets' started by Frankhaddad, Aug 29, 2019.

  1. Volvomad

    Volvomad Senior Member

    Joined:
    Jul 14, 2011
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    Location:
    Ireland
    Can you increase belt tension a little ?
    Is there room to put flat pulley under the flapping side , even to get a longer belt to fit the pulley in ?
    It is very tough work for 1 belt
     
  2. AusDave

    AusDave Senior Member

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    Occupation:
    Self employed
    Location:
    Australia
    Can you change the pulley on the compressor to a heavier one or add a steel disk to it to give more of a flywheel effect in an effort to even out the compressor pulses?
     
  3. Frankhaddad

    Frankhaddad Well-Known Member

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    Aug 25, 2017
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    Location:
    Maine
    The belt is a little to tight as it is, I may have room for an extra pulley, I will have to take another look at the room, very tight quarters.
     
  4. Frankhaddad

    Frankhaddad Well-Known Member

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    Maine
    That is a much easier possibility, might be worth a try even if I have to have one made. I was wondering if there was a way to reduce the compression stroke of the compressor? (construction equipment experience, compressor not much) I see where you are going with pulley/flywheel effect. I did put the old pulley on the new compressor got the same results.
     
  5. hosspuller

    hosspuller Senior Member

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    North Carolina
    You might consider a harmonic balancer instead of a simple flywheel. It would be working in reverse of usual installation on an engine. Which brings up another thought. Is the harmonic balancer on the engine doing its job?
     
    Tinkerer likes this.
  6. Volvomad

    Volvomad Senior Member

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    Location:
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    I dont know anything of the science of belt tension but as I work only on the same kit over and over, i find the best tension varies hugely from 1 application to the next . If it was my machine assuming it has a good quality compressor , i would keep squeezing the belt bit by bit until it steadied or split . That is just me and I could be slated for suggesting this .
     
  7. Tinkerer

    Tinkerer Senior Member

    Joined:
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    On A Riverbank in IL. USA
    I would be looking at the harmonic dampener on the engine. The rubber part of it may be failing. I had one that had actually allowed the pulleys and the steel weight to rotate out of alignment with the correct crankshaft position. I figured it out because the 0° timing mark was off when #1 piston was top dead center.
    I even put new timing gears in the engine before figuring it out.