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Thread: Check Intermediate shaft procedure

  1. #1
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Check Intermediate shaft procedure

    Hey all, I cant seem to find a thread that addresses the way to inspect or verify that the I-shaft is OK while still in the engine. THX
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Check Intermediate shaft procedure

    Are you concerned about the teeth where they mesh with the oil pump, or the bearing surfaces? Either way, I would pull the pan, and have a look. If you take the timing belt off and the retainer, you can slide it out enough for inspection without pulling the engine.

  3. #3
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Re: Check Intermediate shaft procedure

    I am not concerned with the teeth, I'm sure their good. I just wanted to make sure the shaft wouldn't be causing a spark scatter at high rpm under boost. I'm going to be reducing the plug gaps to see if that will eliminate the miss above 5000 rpm.
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

  4. #4
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Check Intermediate shaft procedure

    I think the shutter wheel on the dist. is more of a problem than the slack in the teeth between the int shaft and oil pump. If that gets too sloppy, you've got bigger problems than timing.

  5. #5
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Check Intermediate shaft procedure

    Check for excessive play where the distributor meets the oil pump. You can peen the tabs on the distributor to take up some of the play if needed.

  6. #6
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: Check Intermediate shaft procedure

    turn the motor over by hand (or wrench if you will....) and every 1/4 turn, check the play of the rotor on the distributor. if its the same at every crank angle for 4 rotations, then you are good. if the rotor fits a little loose, add a small piece of electrical tape to the shaft of the dizzy (1/8"x3/8" with half on the top of the shaft and half draped over the shaft before you put the rotor on to make sure its tight)

    then check the wiggle as you rotate the engine over and check. i saw a daytona with no play for some of the rotation and then significant play for the rest of the rotation cause the i-shaft and oil pump gear were muffed.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #7
    Supporting Member Turbo Mopar Contributor mopar-tech's Avatar
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    Re: Check Intermediate shaft procedure

    Pull the distributor and look in the hole. Rotate the engine over by hand while rocking the gear back and forth with a screw driver.

    Common to get one spot that is worn for some reason when the gear is head out the door.

    "knife edge" of the gears can cause massive spark scatter and is why the last engine in the Reliant failed, one reason I'm going to crank trigger on next engine.


    Working on clearing the decks.

  8. #8
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Re: Check Intermediate shaft procedure

    Thanks all, that is valuable, useful info. I am going to try the plugs first IF it ever stops raining in southern Wi so I will have dry roads.
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

  9. #9
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Re: Check Intermediate shaft procedure

    Thanks all, that is valuable, useful info. I am going to try the plugs first IF it ever stops raining in southern Wi so I will have dry roads.
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

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