Compession Stroke Stab Dizzy

Discussion in 'Fox 5.0 Mustang Tech' started by louieb, Jun 20, 2013.


  1. louieb

    louieb Member

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    finding compression stroke wile stabbing dizzy.
    finding compression stroke wile stabbing dizzy.

    ati damper all lines faded. new stock dizzy stabbed right or wrong?

    question to locate the position of number 1 inside the distributor, and line it up with the wire and the case.

    1do you first find number 1 cylinder as air is just coming out of the #1 spark plug with my finger on it? or do i wait till all the air comes out to be on the compression stroke.?

    i noted today as air just exits the #1 cylinder the #1 spark wire on the distributor did not line up with the rotor. it was off to the right. and not lined up with # 1 on the cap, but if i continued to rotate the crank by hand, when all the air from the compression on number 1 spark plug came out, and was evacuated, the wire cap, and rotor did line up with the distributor cap. for firing number 1 spark plug.


    this seems incorrect to me..
    #1
  2. v8only

    v8only Active Member

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    put the motor at 10 degrees tdc..stab dizzy pointed towards one..if it doesnt fire up yank dizzy rotate 180 degrees fire it up..done

    Sent from my SPH-L710 using Tapatalk 2
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  3. jrichker

    jrichker StangNet's favorite TOOL SN Certified Technician Founding Member

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    Putting the distributor back in and setting the timing.


    You can forget about anything beyond this point if you don't have access to a timing light. You will never get the timing set right without one.



    Putting the distributor back in is fairly simple. Pull #1 sparkplug, put your finger in the sparkplug hole, crank the engine until you feel compression. Then line up the TDC mark on the balancer with the pointer on the engine block.

    The distributor starts out with the #1 plug wire lined up at about 12:00 with you facing it. Align the rotor to about 11:00, since it will turn clockwise as it slides into place.

    Align the distributor rotor up with the #1 position marked on the cap, slide the distributor down into the block, (you may have to wiggle the rotor slightly to get the gear to engage) and then note where the rotor is pointing.
    If it still lines up with #1 position on the cap, install the clamp and bolt. If not, pull it out and turn 1 tooth forwards or backwards and try again. Put the #1 spark plug back in and tighten it down, put the clamp on the distributor, but don't tighten it too much, as you will have to move the distributor to set the timing. Note that there is no such thing as one tooth off on a 5.0 Mustang. If it doesn't align perfectly with #1 position, you can turn the distributor until it does. The only problem is that if you are too far one way or the other, you can't turn the distributor enough to get the 10-14 degree optimum timing range.


    Setting the timing:
    Paint the mark on the harmonic balancer with paint -choose 10 degrees BTC or 14 degrees BTC or something else if you have NO2 or other power adder. I try to paint TDC red, 10 degrees BTC white and 14 degrees BTC blue.

    10 degrees BTC is towards the drivers side marks.

    Note: setting the timing beyond the 10 degree mark will give you a little more low speed acceleration. BUT you will need to run 93 octane to avoid pinging and engine damage. Pinging is very hard to hear at full throttle, so it could be present and you would not hear it.

    Simplified diagram of what it looks like. Not all the marks are shown for ease of viewing.

    ATC ' ' ' ' ' ' ' ' ' '!' ' ' ' ' ' ' ' ' ' BTC
    ---------------- > Direction of Rotation as viewed standing in front of the engine.

    The ' is 2 degrees.
    The ! is TDC
    The ' is 10 degrees BTC
    Set the timing 5 marks BTC. Or if you prefer, 5 marks towards the driver's side to get 10 degrees.

    To get 14 degrees, set it 7 marks BTC. Or if you prefer, 7 marks towards the driver's side to get 14 degrees.

    The paint marks you make are your friends if you do it correctly. They are much easier to see that the marks machined into the harmonic balancer hub.

    At this point hook up all the wires, get out the timing light. Connect timing light up to battery & #1 spark plug. Then start the engine.

    Remove the SPOUT connector (do a search if you want a picture of the SPOUT connector) It is the 2 pin rectangular plug on the distributor wiring harness. Only the EFI Mustang engines have a SPOUT. If yours is not EFI, check for a SPOUT: if you don’t find one, skip any instructions regarding the SPOUT
    Warning: there are only two places the SPOUT should be when you time the engine. The first place is in your pocket while you are setting the timing and the second is back in the harness when you finish. The little bugger is too easy to lose and too hard to find a replacement.

    Start engine, loosen distributor hold down with a 1/2" universal socket. Shine the timing light on the marks and turn the distributor until the mark lines up with the edge of the timing pointer. Tighten down the distributor hold down bolt, Replace the SPOUT connector and you are done.

    The HO firing order is 1-3-7-2-6-5-4-8.
    Non HO firing order is 1-5-4-2-6-3-7-8

    [​IMG]
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  4. jetmech807

    jetmech807 Mustang Master

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    Get the feeling it's distributor week on SN.....

    Sent from my EVO using Tapatalk 2
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