Speed sensor gear fell | Ford Escort Owners Association (FEOA)

Speed sensor gear fell

Discussion in 'Drivetrains' started by wasthatawagon, Aug 13, 2018.

  1. wasthatawagon

    wasthatawagon FEOA Member

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    Sooo the plastic speed sensor gear fell into the trans and I cant find it. Question is, should I leave it or take the trans out and take it apart to retrieve it?
  2. denisond3

    denisond3 Moderator Staff Member

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    Ouch!
    Have you tried turning the axles or the differential (by holding one axle motionless but turning the other axle gently)? This might bring the VSS gear into view. It would have to be done with the transmission in neutral.
    The problem with leaving it in there is that it will eventually get drawn up and crushed between the rotating differential carrier and the aluminum walls of the differential area. While that likely wont hurt any metal parts - it would likely ruin the larger plastic gear that is mounted on the diff carrier to spin the VSS. And also destroy any new VSS that you put in there.
    As a first or second recovery "try", I think I would spend a while probing into the VSS hole, using a thin length of brazing rod, with a tip bent a few degrees (almost into a hook) , to see if I could fish the VSS gear at least back into view.

    Maybe someone with better experience of this will respond.

    If you do take the trans out, turning it on end or somesuch method might let the VSS gear come into view. I would be sure to put a 'plug' into one side of the differential - to keep the output gears from falling out of place. It would only require one side to be plugged. I have done it using a short chunk of wooden broom handle, also with a short chunk of PVC pipe.
    If the side gear did fall out of place, I believe it would mean dismantling the trans case halves in order to recover the gears and get them set opposite each other. And with either an automatic trans or the 5-speed trans, you cant just split the case halves without taking many of the internal parts out.
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  3. wasthatawagon

    wasthatawagon FEOA Member

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    Sooo, I was tryin to get the gear out and had to remove the bolt that holds the sensor in, because it was in the way annnnd it fell in also, so do I get discouraged, hell to tha naw. Patience my friend, not to mention I removed the tranny to, so it would be easier. Winner!!

    20180814_205959.jpg 20180814_210320.jpg 20180814_211830.jpg
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  4. denisond3

    denisond3 Moderator Staff Member

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    Thanks for the feedback. You are a shining example to our community!
  5. billzie

    billzie FEOA Member

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    This happened to me a few months ago. I couldn’t get it out of its mounting hole. I figured it’s plastic and will eventually bring itself into sawdust size pieces. For a month or so I would have trouble getting into gear occasionally but never left me disabled on the road, haven’t had any issue I the last 2 months or so. I am getting ready drain the oil and remove the trans and will see what I find.
    Bill
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  6. JOEG5982

    JOEG5982 FEOA Member

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    get the bolt out I hope--magnet. Don't worry about the plastic.
  7. wasthatawagon

    wasthatawagon FEOA Member

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    It's a pretty big piece of plastic to just leave in there, I just played it safe.

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