Cat c12 compressor

Discussion in 'Trucks [ Eighteen Wheelers ]' started by thev8man, Feb 3, 2009.

  1. thev8man

    thev8man Bobtail Member

    11
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    Oct 10, 2008
    Widnes uk
    0
    Greetings from the uk! glad i found this place, full of "horsepower heads" .
    Anyway, the problem i have is there seems to water/oil gettin in the air system at the compressor. not a problem i thinks ,untill i try and order a gasket set and valves for it. The gasket i suspect is failing is not available,according to cat, that gasket only comes with a new assembled compressor. what a load of s????t.
    U guys had anything like that ?
     
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  3. underpsi

    underpsi Road Train Member

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    Sep 18, 2008
    Toronto, Ont
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    You should be able to get parts for your compressor at a heavy duty parts shop. Somewhere that sells bendix parts and that since I don't think the compressors are actually made by cat anyways
     
  4. thev8man

    thev8man Bobtail Member

    11
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    Oct 10, 2008
    Widnes uk
    0
    Yep i thought that too, been phoning around all day. on the parts peoples computers it only shows 2 of the 3 gaskets.
    It's got 3 lots of part numbers on it, made by bendix in france for knorr bremse with a cat badge on it, why is nothin simple and straight forward!
     
  5. underpsi

    underpsi Road Train Member

    1,266
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    Sep 18, 2008
    Toronto, Ont
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    Which gasket is it that you need? You should be able to buy like a head gasket kit for it
     
  6. thev8man

    thev8man Bobtail Member

    11
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    Oct 10, 2008
    Widnes uk
    0
    Its the middle one of them i cant get. the headgasket is on the bottom then a "sandwich plate"then a gasket. then the top bit on top. the sandwich plate splits in 2 with another gasket in between, i believe it contains a water gallery.
     
  7. Jas

    Jas Medium Load Member

    Dont think thats a bendix compressor as they dont have a sandwich plate, the cat compressors have the sandwich plate though, what is you serial number? I have never seen anything other than a bendix on a C12 but never say never...
     
  8. droy

    droy Heavy Load Member

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    Jun 11, 2008
    Iowa, LA
    0
    Could also get a sheet of gasket material, and "make" one, just get the correct thickness, and make sure it's compatible with the liquids it will be exposed to.
     
  9. thev8man

    thev8man Bobtail Member

    11
    0
    Oct 10, 2008
    Widnes uk
    0
    Easyer to take pics than explain.Still no sense out of anybody so may have to make one but it's more like a head gasket than a gasket, apparentley.
     

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  10. underpsi

    underpsi Road Train Member

    1,266
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    Sep 18, 2008
    Toronto, Ont
    0
    Thats a Bendix compressor... Think it might be a 595 or 594 their called forget. Got a few trucks with them on it. Those are good compressors, pump fast. We have had trouble with the head gasket on them a couple times
     
  11. Jas

    Jas Medium Load Member

    I stand corrected, it is a bendix with a sandwich plate, the head gasket part number is 175-3171, and the head kit number is 187-1483 it contains valves, gasket, reed valves, etc. there is also an unload kit avalible 187-1481 containing unloader pistons, springs, gasket, etc. These are the only parts I can find availble through cat system.

    If it is putting oil into the air tanks it is unlikely a gasket is the cause of the problem, usually the only way oil can get to the air system is past the piston rings in the compressor.
     
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