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Thread: Oil & pressure adapter

  
  1. #1
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    Oil & pressure adapter

    hy!
    a have a astra H opc z20LEH
    i have bought from ebay 3 raid gauges - boost, oil pressure and oil temperature.
    does anyone knows what is the adapter for my car?
    i found 2 models on e-bay:
    http://cgi.ebay.de/Raid-Hp-3-4-AF-Oi...QQcmdZViewItem

    http://cgi.ebay.de/Raid-Hp-M20-Oil-P...QQcmdZViewItem

    on the pressure sender it sais: thread size: 1/8" 27 npt

    Thanks!

  2. #2
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    I would expect the thread to be metric, but the RaidHP site says Vauxhalls are either:
    VAUXHALL VauxhallOil temp & pressure adaptor.M18-P1.5660406VAUXHALL VauxhallOil temp & pressure adaptor.3/4 unf-16660408

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    Thats called national pipe thread and its american... search online you can buy the correct taps without a problem
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    ....have you got a link Enkidu ?

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    I brought mine off ebay http://cgi.ebay.co.uk/HSS-NPT-Tap-1-...QQcmdZViewItem

    You'll need I think 8.5mm drill too but 8mm will be fine im sure of it as the tap does the job fine.... Remember don't wind it all the way in as the thread can be too big, I did mine about half way and used some ptfe tape sealed fine.
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

  6. #6
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    1/8NPT is the thread on the senders that go into the sandwich plate,- the plate is already tapped to recieve them so you won't need to go faffing about with a tap.

    The question is what thread is the oil filter on an LEH, so the sandwich plate will fit. I'm sure it'll be M20.

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    I didn't go for a sandwich plate, I heard they don't fit too good.
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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