Distributor

Discussion in 'Fox 5.0 Mustang Tech' started by federal officer, Jun 21, 2013.


  1. federal officer

    federal officer New Member

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    So my car is going back together rather slowly. I'm to the point that I wanted to put the distributor back in. All lines and marks that I had lined up for reference are still there but when I drop it in it stops with about an 1/8 of an inch to go and I can't seem to drive it home. I pushed and wiggled but still nothing. I had to stop as I was getting very impatient with it. Any ideas that I might be able to try. Stock 1985 GT H.O.
     
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  2. jetmech807

    jetmech807 Mustang Master

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    Could be hanging up on the oil pump drive shaft. Pull the dist back out and turn shaft a hair and try it again.

    Sent from my EVO using Tapatalk 2
     
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  3. 7991LXnSHO

    7991LXnSHO Well-Known Member

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    I second the motion on the oil pump shaft not lining up. Been there more than once. Patience and even a long, skinny screwdriver to adjust the shaft are the only suggestions I have.
     
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  4. federal officer

    federal officer New Member

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    thats great advice guys, thank you. I was going to take the weekend off from the car but I may have to try that little trick. Flash light and long skinny screw driver.
     
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  5. 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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