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Thread: Need help with TIMING.

  1. #1
    Join Date
    Mar 2012
    Location
    Sacramento CA.
    Posts
    254

    Default Need help with TIMING.

    I am trying to figure out where to set the timing on my dauntless 225. I bought a timing gun and I have it set right where the red mark is on the pic below. It seams to have a better start but it is running in high idle it seems like and it smells a lot diffrent than when I had it at about 5 degrees on the ruler marks(not sure what you call that little timing ruler). Would it hurt if I run it like that or where should I be set at? Thanks in advance.


  2. #2
    Join Date
    Apr 2013
    Location
    N. Highlands Ca
    Posts
    181

    Default Re: Need help with TIMING.

    5 degree before is what my Chilton manual says...point dwell at 30 & point gap at .016

  3. #3
    Join Date
    Oct 2009
    Location
    Yuba City, CA
    Posts
    85

    Default Re: Need help with TIMING.

    If it runs well there, leave it. Unless you use a piston stop to determine the timing mark and indicator are matched and accurate you are guessing anyway. Set the dwell (I personally do not like setting by gap) and adjust the idle speed. If you change the timing, reset the idle. Now if you have an other than stock distributor, the discussion gets more involved.
    "A people that values its privileges above its principles soon loses both" - Dwight Eisenhower
    "The problem with socialism is that eventually you run out of other people's money". - Margaret Thatcher

  4. #4
    Join Date
    Nov 2007
    Location
    Rio Linda CA
    Posts
    619

    Default Re: Need help with TIMING.

    Felipe,
    Looking at your picture, you are setting the timing about 5° retarded, that is, after TDC. These engines turn clockwise from the front perspective, so the numbers on the timing indicator above the 0° are all advance numbers, before TDC.

    Try it set to 0°, drive it and listen for ignition pinging on acceleration. If not, set it to 5° BTDC and listen for pinging then. If you reach a point where it pings noticably on acceleration, back it down a couple degrees until the ping goes away and run it there.

    I think the reason JAlves said what he did about the accuracy of the timing mark is because an old harmonic balancer can sometimes slip the weight after the rubber isolator ring deteriorates. When this happens the timing indicator line will be off.

    With your Pertronix ignition module you can ignore the advice about the gap and dwell. Just reset the idle after you are satified with the timing.

    Don
    '70 CJ5 the Yellow Barn Find. V6, T14, D18, Warn OD, D27, Flanged D44 W/Trak-Lok, 4.88.
    '69 CJ5, still undergoing a rebuild. V6, SM465, D18 W/TerraLow, D27, D44 W/LockRite, 4.88
    '66 CJ5, a Pile O'Parts. F134, T90, D18, D27 W/Powr-Lok, D44 4.27.

  5. #5
    Join Date
    Mar 2012
    Location
    Sacramento CA.
    Posts
    254

    Default Re: Need help with TIMING.

    Quote Originally Posted by djbutler View Post
    Felipe,
    Looking at your picture, you are setting the timing about 5° retarded, that is, after TDC. These engines turn clockwise from the front perspective, so the numbers on the timing indicator above the 0° are all advance numbers, before TDC.

    Try it set to 0°, drive it and listen for ignition pinging on acceleration. If not, set it to 5° BTDC and listen for pinging then. If you reach a point where it pings noticably on acceleration, back it down a couple degrees until the ping goes away and run it there.

    I think the reason JAlves said what he did about the accuracy of the timing mark is because an old harmonic balancer can sometimes slip the weight after the rubber isolator ring deteriorates. When this happens the timing indicator line will be off.

    With your Pertronix ignition module you can ignore the advice about the gap and dwell. Just reset the idle after you are satified with the timing.

    Don
    I had the timing set at 5° BTDC before and I would get a lot of back fire, it sounded like the engine wanted to die and would take a bit to start even after spark plug change and the pretronix. Once I set it to where it is at I got a better start, not much backfire but it sounds like it idles really high.

    I will defiantly try to do it your way and see what happens.

  6. #6
    Join Date
    Jan 2005
    Location
    Colton,Calif
    Posts
    280

    Default Re: Need help with TIMING.

    did you disconnect your vacuum line to the disturber

  7. #7
    Join Date
    Mar 2012
    Location
    Sacramento CA.
    Posts
    254

    Default Re: Need help with TIMING.

    Quote Originally Posted by cookieman View Post
    did you disconnect your vacuum line to the disturber
    Not sure wich is the vacuum line. Is this the vacuum line?


  8. #8
    Join Date
    Nov 2007
    Location
    Rio Linda CA
    Posts
    619

    Default Re: Need help with TIMING.

    Yes that is the vacuum line to remove. This disables vacuum advance so you can set static timing. If you have been trying to set the timing with this still connected, no wonder you have problems. Try this, disconnect the vacuum line then set it to 5° BTDC. See how it runs. If you still get the backfiring or pinging, retard it a couple degrees at a time until you get the setting that gives the best power without pinging or hard starting, then run it there.

    Don
    '70 CJ5 the Yellow Barn Find. V6, T14, D18, Warn OD, D27, Flanged D44 W/Trak-Lok, 4.88.
    '69 CJ5, still undergoing a rebuild. V6, SM465, D18 W/TerraLow, D27, D44 W/LockRite, 4.88
    '66 CJ5, a Pile O'Parts. F134, T90, D18, D27 W/Powr-Lok, D44 4.27.

  9. #9
    Join Date
    Aug 2003
    Location
    Fairbanks, Alaska
    Posts
    924

    Default Re: Need help with TIMING.

    yep
    1970 CJ-5, 225 V-6 OF, headers, HEI, D30 Fr, 44 Rr, ARB's, saginaw power steering, SM420 w/ Novak, D18 twin stick, 33" TSL Radials, Ramsey REP 5000, Sky Jacker Soft Ride, No Cam Button.

  10. #10
    Join Date
    Aug 2003
    Location
    Fairbanks, Alaska
    Posts
    924

    Default Re: Need help with TIMING.

    Don't forget to plug the vacuum hose after you remove it from the distributer.
    1970 CJ-5, 225 V-6 OF, headers, HEI, D30 Fr, 44 Rr, ARB's, saginaw power steering, SM420 w/ Novak, D18 twin stick, 33" TSL Radials, Ramsey REP 5000, Sky Jacker Soft Ride, No Cam Button.

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