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Ignition Timing

Discussion in 'General Tech and Maintenance' started by PBE9699, Apr 5, 2004.

  1. PBE9699

    PBE9699 Member

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    I'm currently learning to do things under the hood for myself so here goes.

    I got a B16A and I want to adjust the ignition timing. I have access to a timing light and everything but I have no idea what I'm looking for when I'm "shooting" at the crank pulley. :(
    It'd be great if I could get some help from you guys, pics would be even greater, thanks a lot.
     
  2. MikeBergy

    MikeBergy Blah blah blah....

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    It's okay to be a noob, glad to see you are asking questions about the motor, and not about how you mount LED windshield washers or some crap like that. To check the timing, there is a mark on the crank pulley, an etched line that needs to match up to a line that is on the plastic timing belt cover. When you hook up your timing light to the #1 cylinder spark plug (the one farthest away from the tranny, on the drivers' side) and the battery, aim the timing light at the crank pulley. To see the marks better, I used a crayon to highlight both marks. When you set the timing light to however many degrees of advance you want, loosen up the distributor and rotate it slightly until your marks line up, and aren't moving around. Just make sure you tighten up the distributor when you are done, recheck the timing to make sure you didn't bump it when you tightened the dist., and if you're good, then you're good. Hope this helps
     
  3. PBE9699

    PBE9699 Member

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    Hmmm so cylinder #1 is the one furthest from the Tranny...
    Damn, a mechanic did it last time but he used the one closest to the distributor which I'm guessing is cylinder 4 :|
    What consequences would this have? He said he set my timing to 15 degrees...

    As for when I do it myself this weekend, Ok so I want to see the mark on the crank pulley lining up with the mark on the timing belt cover... how do I know how much degrees I've advanced/retarded by?
    I'm guessing when they are both in line thats the stock timing?

    Thanks for your patience MikeBergy
     
  4. D See 2

    D See 2 Senior Member

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    there are 4 marks on the crank pulley.
    There is one all by itself (0* (Cyl. 1 TDC))
    And there are 3 marks right next to each other
    the one closest to the 0 degree mark is 14*
    the middle one is 16*
    and the one farthest from the TDC mark is 18*
     
  5. PBE9699

    PBE9699 Member

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    ^^ Thanks, that helps a great bit.
    Another good question then,

    I saw the mechanic mess around with the ECU and he jumped the OBD connector (the one you use to check for codes I think). Is there any reason for this and does one need to do it?
     
  6. JDMilan

    JDMilan Senior Member

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  7. MikeBergy

    MikeBergy Blah blah blah....

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    I never really played around much with the other marks, because I had a timing light with an advance dial on it. I just dialed the amount of advance I needed, and set it. Good to know though, I haven't done much looking underhood of my integra though, no $, oh well good luck bro.
     
  8. PBE9699

    PBE9699 Member

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    :S

    anyone know why the mechanic messed around with the ECU?
     
  9. B16

    B16 Super Moderator VIP

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    he was jumping the service connector, you need to do this in order to set your base timing correctly. what this does is put the ecu into service mode, so when you are adjusting the timing by hand the ecu is not trying to correct it on its own.
    this is the connector you want to "jump" use a paper clip and stick each end into its own hole to complete the connection.
    here is what the guy looks like
    [​IMG]

    your check engine light will stay on while it is running like this, this is normal.
     
  10. PBE9699

    PBE9699 Member

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    Yowsa, great explanation.
    Thanks a lot B16!
     
  11. MikeBergy

    MikeBergy Blah blah blah....

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    B16, is that in the same spot for every honda? I have a DA integ, and never could understand what the manual meant by jumping the service connector. That is good info. I am still feeling like a noob.
     
  12. unsivil_audio

    unsivil_audio Ninja's pwn samuri's.

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    Is the connector in the same place on a 5th gen coupe? Also, do you have to move the ecu to get to it? and is it the same color?
     
  13. YouKnowWhoIBee

    YouKnowWhoIBee my avatar is better.

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    On my 5th gen hatch it is behind the glove box. You have to unlatch both sides and there is 2 blue plugs towards the passenger side fender.
     
  14. asmallsol

    asmallsol Super Moderator

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    On my sol, when you peal back the carpet, there is a little rubber holder with 2 plugs that go to nothing, one is 2 wire, the other is more. The one that your worried about is the 2 wire plug. Just some how connect the two pins. (I acutally couldn't find a paper clip so I used a metal twist tie and just striped the paper off)
     
  15. luispequeno

    luispequeno New Member

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    can you fix the link to the diagram on the ecu as to how to jump it to set it in service mode?
     
  16. joels440

    joels440 New Member

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  17. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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  18. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

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  19. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    Obviously.

    I only responded for the sake of info. If a link is down in an old thread but the thread has good info, or had good info because of the link, it's worth it to bring it back I say. Be reasonable...
     
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