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Thread: Timing degress for LPG???

  1. 7th December 2003, 08:29 AM #1
    Rovernaut Guest

    Timing degress for LPG???

    Anyone running Duel fuel. LPG and Petrol/
    What have you set your timing to?
    Std on the Aus spec Disco 3.9 EFI is 2 deg btdc.
    I hear that spark plugs should be gapped differently ans timing advanced.
    On LPG joint says advance to 8deg, another says leave std.?
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  2. 8th December 2003, 09:15 PM #2
    bazzle
    bazzle is offline Fossicker
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    Advance for LPG to 8 maybe even 10. If you run on petrol and it pings you will have to find a compromise between.

    Its said thet disco timing marks arnt acurate anyway. You need to do a TDC check to find 0 degrees.

    Bazzle [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]
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  3. 11th December 2003, 07:22 PM #3
    Pierre
    Pierre is offline Wizard Silver Subscriber
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    LPG tune

    Advance is important - agree about 8 -10 degrees. Check that the vac advance unit is actually working, too. Often fail....

    Plugs - no change to gap, but a different heat range if LPG is preferred fuel. Talk to your local LPG dude.
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  4. 11th December 2003, 07:48 PM #4
    Rovernaut Guest
    I checked NGK plug site and they reccomend I range cloder plug and also reccomend regapping 1mm closer on their plugs.
    Vacuum advance is fine. Bought a reco not so long ago.
    I agree I have heard that Rover TDC marks are not always accurate.
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