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LH 2.2 timing adjustable?

posted by  NJC on  Sat Jan 28 15:16 CST 2006
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last visit: Sun Jul 24 13:42 CST 2011
[RELATED]

Didn't see anything in FAQ.
--
Norm Cook; Vancouver BC; 1989 745T 210,000KM








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    LH 2.2 timing adjustable?

    posted by  rhaire on  Sun Jan 29 07:43 CST 2006
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    last visit: Mon Aug 4 10:16 CST 2014
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    It is, but I would point out I have never had to adjust the timing in 20 years with LH 2.2. Get the belt on right?








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      LH 2.2 timing adjustable?

      posted by  NJC on  Sun Jan 29 17:57 CST 2006
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      last visit: Sun Jul 24 13:42 CST 2011
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      The belt is on right (checked about 3 times and even removed spark plug #1 to verify TDC).

      The one bizarro thing I noticed when doing T-belt is cam roll pin was bent when I removed..? I had turn the engine over using cam gear and wondered if maybe I had done that myself.

      But possibly the car timed according to the variation caused by bend in roll pin. I need to get a timing light and verify.

      Harmonic balancer rubber seemed tight.
      --
      Norm Cook; Vancouver BC; 1989 745T 210,000KM








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        LH 2.2 timing adjustable?

        posted by  someone claiming to be simulated on  Mon Jan 30 05:42 CST 2006 [RELATED]

        Light won't check a loose cam. Rubber will seem tight until it shreds.








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        LH 2.2 timing adjustable?

        posted by  B.C. on  Mon Jan 30 04:38 CST 2006
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        last visit: Wed Mar 28 22:28 CST 2012
        [RELATED]

        As you say, get a timing light and check.

        I have never needed to adjust ignition timing in any of my 240s. (1975 - 1988, none turbo.)

        Good Luck,

        Bob

        :>)








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    Yes -- LH 2.2 (Volvo/Chrysler Ign.) timing is adjustable

    uid 18083's pic
    posted by  lucid on  Sun Jan 29 01:57 CST 2006
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    last visit: Fri Oct 24 12:31 CST 2014
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    The spec is 12±2° @ 750 rpm. Vac hose to Chrysler ICU disconnected and plugged for timing check/adjustment.

    Nothing in FAQ because 700/900 didn't have LH 2.2 FI, as far as I know. Not sure if any had the Volvo/Chrysler ignition, which is really central to your question.

    Now that I look at the whole thread (sorry), I see more knowledgable responses a few posts down.
    --
    Bruce Young
    '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.








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      Yes -- LH 2.2 (Volvo/Chrysler Ign.) timing is adjustable

      posted by  Michae1 on  Mon Jan 30 15:18 CST 2006
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      last visit: Sun Feb 28 08:41 CST 2010
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      "Nothing in FAQ because 700/900 didn't have LH 2.2 FI, as far as I know."

      Quite common on '85-'88 700 series. Used '85-'89 on the 700 Turbo.
      --
      forums.turbobricks.com








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    LH 2.2 timing adjustable?

    posted by  aleekat on  Sat Jan 28 16:59 CST 2006
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    last visit: Fri Oct 24 13:19 CST 2014
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    Actually no.. You can move it a little, but if its off a bunch..check your timing belt/pulley marks.








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      LH 2.2 timing adjustable?

      posted by  NJC on  Sat Jan 28 17:11 CST 2006
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      last visit: Sun Jul 24 13:42 CST 2011
      [RELATED]

      the dist plate is on a slotted housing—IE it is looks like it is designed for movement.

      cam/crank marks aligned to 0TDC (verified by removing plug).
      --
      Norm Cook; Vancouver BC; 1989 745T 210,000KM








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    LH 2.2 timing adjustable?

    posted by  someone claiming to be sorenson-jr on  Sat Jan 28 15:31 CST 2006 [RELATED]

    LH2.2 is fuel injection. Its timing is based on the ignition system which might be Bosch or Chrysler depending on what model Volvo you might be talking about - all adjustable by moving the distributor during the years LH2.2 was used for fuel.








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      LH 2.2 timing adjustable?

      posted by  Rule 308 on  Sat Jan 28 20:43 CST 2006
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      last visit: Tue May 8 09:20 CST 2012
      [RELATED]

      Sorenson called it. Take a look at your mass meter, does it have a round plug on it where you can adjust the fuel mix? If it does then you have an LH 2.2 or earlier system and all you need do is loosen the dist and twist it and you will changed the timing. In the later cars you can still twist the dist it just will not make a difference because the engine speed sensor is no longer located in the dist on those models. As he also pointed out, LH 2.2 is the fuel injection and not the ignition. I am a California wrench and all of the LH 2.2 systems I have worked on had either Chrysler (240) or Bosch (700) systems in them and are adjustable.


      Mark







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