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Thread: aircon compressor

  1. 6th August 2014, 05:48 PM #1
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    aircon compressor

    Not sure if this should be here or in the Isuzu section so move it if you have to.

    Anyway I seem to not have much room to fit an air on compressor in my Isuzu powered rangie.
    I have an old sanden 508 compressor which I was using as a dummy, this has twin A belt pulley on it, now to have this in a position where it will line up with the front pulleys it hits the fan just.
    So I can either change it to a single B type belt and run it on the main belt system but I would have 4 pulleys running on the same v belt, crank pulley would get about 120 degrees contact, fan pulley would remain the same (roughly 70degrees contact), alternator 90 degrees contact, a/c would be about 90 as well. Would this be enough?

    Or

    Does anyone make a more compact compressor and pulleys diameter wise, sanden one is around 130mm.
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  2. 6th August 2014, 08:18 PM #2
    Ancient Mariner
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    Vern dont know if these are still available but are about one belt shorter than a Sanden.You cant space the fan enough to clear ? The pulley sizes are about the same 135mm .

    Noel
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  3. 6th August 2014, 08:23 PM #3
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    Pto driven?.
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  4. 6th August 2014, 08:37 PM #4
    Ancient Mariner
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    Sorry thats my on board air .Pulled the magnetic clutch and adapted Hyspeed hyd motor You can just see abit of the boss where the mag clutch bolts to
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  5. 6th August 2014, 09:26 PM #5
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    Oh OK, so far easiest way I can see to do it is change the pulley to a B type pulley and run the whole lot on 1 belt. Or may be a hydraulic compressor, I think reddot do one.
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  6. 8th August 2014, 03:28 PM #6
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    bump
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  7. 10th August 2014, 10:17 AM #7
    Ancient Mariner
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    Hey Vern thought some one might have chipped in by now.You did'nt say if you could space the fan forward as you only need about 6mm clearance.I have always tried for 90+ but think a B section would be OK with those contact areas.You could always charge the AC with HYChill-30and reduce the load really impressed with mine sofar
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  8. 10th August 2014, 12:53 PM #8
    Davehoos Guest
    you are talking about an air compressor-not air conditioning compressor? the compressor is a copy of a 508.there is a smaller sanden compressor 507 that's made for aircraft type applications that hold the oil within the pump. or tama-unicla style pumps. these pumps you can fit the hoses to the top body of the compressor saving space.


    you can get a variety of compressor pulley mostly on tractors and commercial aplications that have bolt on pulley on to the drive pulley.
    the clutch disc is internal inside the pulley.


    you use a double tensioner pulley and 2 belts to allow you to offset the line.


    most trucks will have a conversion to fit-and use a visco hub fan. some conversions came with a metal spacer plate for the water pump pulley-others had a thicker water pump pulley.


    some fridge trucks have the compressor mounted on the right side with a tensioner-idlers mounted on the left lower and a 3rd on the cyl head.
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  9. 10th August 2014, 05:27 PM #9
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    Sorry its an air con compressor for the air con. Stupid tablet and its corrective spelling
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  10. 10th August 2014, 05:34 PM #10
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    A lot of options there, but not sure any will work.
    Ultimately the easiest is just change the AA pulley to a single B pulley and run one belt, but the belt will have to run the crank, water pump, alternator, and the aircon. This seems to not be very advisable.
    Second best option is to change to a B pulley and run an additional B pulley on the crank, I can set the compressor up as the tensioner.

    Moving the fan is not really an option, I don't want it any closer the the radiator than it already is.
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