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Thread: Discovery 2 SLS Air compressor

  1. #1
    Join Date
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    Discovery 2 SLS Air compressor

    Hi All,
    The compressor on my d2 seized.
    I have stripped down and got the motor running again, but it has suffered quite a bit of heat damage.
    It is no longer generating any meaningful pressure.

    I am considering replacing the compressor with a generic air ride compressor, as used by some others here.

    I am unsure of the fittings I might need to make the change, so any help there for adapting the 4mm pipes to the compressor would be gratefully received.



    I have also ordered the repair kit for the SLS compressor from bagpiping andy, I figure its worth a go, and I could maybe get a new motor for the existing SLS compressor but thats likely to cost more than a generic compressor.

    All thoughts and ideas welcome. I'll document the fittings needed to do it for the next guy.
    RR

  2. #2
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    Hi, depends on what connection you have on the generic compressor but there are adaptors on the market for any kind, you need one with 4mm push fit one side and the proper thread for the compressor on the other side, something like this [ame="http://www.amazon.com/SMC-Connect-Fitting-Adapter-Metric/dp/B00AM41P2Q"]SMC KQ2H Push-to-Connect Tube Fitting, Adapter, Brass Body, Tube OD x Metric (M) Thread Male, With Gasket, Metric: Amazon.com: Industrial & Scientific@@AMEPARAM@@http://ecx.images-amazon.com/images/I/41qii2kqIiL.@@AMEPARAM@@41qii2kqIiL[/ame]


    though the bigger problem i detect in case of a generic compressor is how did you think to resolve the exhaust valve which in the original setup is together with the compressor on the same supply pipe
    Discovery Td5 (2000), manual, tuned

  3. #3
    Join Date
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    Quote Originally Posted by sierrafery View Post
    though the bigger problem i detect in case of a generic compressor is how did you think to resolve the exhaust valve which in the original setup is together with the compressor on the same supply pipe
    Thanks for the link.
    Yeah, I'm thinking about that one.
    Considering using the method outlined here. [ame="http://www.airsprings.cc/4x4/LandRover/GRK35033D%20Land%20Rover%20Discovery%202%20Compres sor%20Replacement.pdf"]Replace discovery 2 sls compressor with generic[/ame]

    Have another issue. the inlet elbow melted into the head, so I need a collet and new elbow to mount it in the head. Any ideas for where and what to buy?

    I think this stackable elbow is it?
    Last edited by rangeyrover; 18th January 2015 at 02:36 PM. Reason: More info

  4. #4
    lewy is offline Wizard Silver Subscriber
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    darwin
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    This is what I done 3 weeks ago.
    I used the existing pump exhaust valve.
    dismantle the pump,Get rid of the piston,conrod,crank shaft,the electric motor
    you will need to drill out four rivets to undo the conrod from the crank,replace the rivets with small bolts and nuts.
    Get a hacksaw and cut the electric motor straight behind the main body of the compressor.
    this leaves just the head of the compressor with the exhaust valve intact and the block of the compressor with no internals.
    You will now have to drill the intake out and tap a thread to except a pushin high pressure air pipe.
    Make up a plate to bolt to the electric side of the block. I used a bit of flat 4mm alum plate.
    I used a Vair 380c from air ride suspensions mounted in the rear of the disco.I cant seem to upload pics to the site at the moment send me a pm with your email and i will send you some pics

  5. #5
    lewy is offline Wizard Silver Subscriber
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    darwin
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    the existing inlet is just a pushin fitting it has no pressure on it when used with the standard setup it will not hold the pressure if you want to use an external compresser,this is why i drilled and tapped mine.

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