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Thread: EAS Pressures

  1. #1
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    EAS Pressures

    Hi

    RAVE states that the EAS runs at 150 psi.

    Having just added an enhanced bypass system i can now see my pressure had dropped to 50 psi overnight and after a short drive was up to 100psi.

    Is this normal or do i have air leaks, bad compressor?

    There are no obvious leaks and the rangie has never dropped overnight.

    As a side note, when we replacing the o-rings we discovered that the reservoir only had one o-ring under the collet!

    Thanks
    Steve

  2. #2
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    pressure in the reservoir will get up to around 150psi before the compressor switches off. when the pressure drops to around 120psi the compressor should start running again.

    it does sound like you still have a leak somewhere. check/double check the diaphragm and look for leaks around the exhaust port, as well as the usual spots like collets and solenoids.
    My toys, projects and write-ups at PaulP38a.com

  3. #3
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    Hi Paul,

    Thanks for confirming my suspicions.

    I shall seek further leaks.

    It may be the compressor itself, I had thought it was new, but i noticed some tape on the plug with "OK" written on it, so it seems it is second hand with an unknown history.

    At least now i can monitor the pressure in the system and it is definitely behaving better since the valve block rebuild

    Steve

  4. #4
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    I bought a new compressor with "ok" written on it. Sometimes they mark them after testing them out after manufacture, more of a quality control kind of thing!

    I've noticed my pressure sits around 130psi on average.

  5. #5
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    Quote Originally Posted by Keithy P38 View Post
    I bought a new compressor with "ok" written on it. Sometimes they mark them after testing them out after manufacture, more of a quality control kind of thing!

    I've noticed my pressure sits around 130psi on average.
    Keith,

    This OK, was written on a hand torn piece of masking tape and stuck to the connector, it doesn't look like anything which would come out of a LandRover factory ! Also my EAS delay relay has a very similar piece of tape on it

    My compressor cuts off at around 140 now.

    Steve

  6. #6
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    Hi

    There was a leak in one of my bypass connectors near my gauge, plus one of the push in connectors in the bypass setup would not stop leaking until I gave it a little coating of vaseline before pushing the tube in!

    So now I know it has no leaks in that area and seems to be holding 130PSI comfortably.

    I shall see what it says in the morning.

    Steve

  7. #7
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    Hi

    Well i have verified I have no leaks in my bypass system or any of the connectors at the valve block.

    I am thinking my next step will be to disconnect line 6 from the valve block and cap it off, i will then pressuries the system with my compressor and see if that holds overnight. Then i will know whether it is the line to the tank area, or if it is in the valve block compressor area.

    I have a feeling this has been happening since I bought the rangie.

    My efforts certainly have improved things, but there is still a little way to go

    Steve

  8. #8
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    Have you also tried removing the EAS Delay Timer from under the passenger seat and leaving it overnight?

    If the pressure drops more than 5-10psi overnight (depends on outside temp) you have a mechanical leak. If it does not, chances are that the loss is due to an electrical/logic issue.
    My toys, projects and write-ups at PaulP38a.com

  9. #9
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    Paul,

    My beastie has a switch under the passengers seat which I think bypasses the EAS delay relay.

    I will certainly try flipping that one evening

    Thanks
    Steve

  10. #10
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    Well it seems if i turn off the self leveling, I lose lot less pressure.

    So now I guess it's the individual springs and hoses, plus the valve block and compressor area

    Steve

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