Just when you thought you'd heard enough of shift shaft seal questions! | FerrariChat
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Just when you thought you'd heard enough of shift shaft seal questions!

Discussion in 'Technical Q&A' started by christopher, Feb 5, 2006.

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  1. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    #1 christopher, Feb 5, 2006
    Sorry Gentlemen,

    But I've uncovered yet another stumbling block:

    Finally got the shift shaft out! The seals don't look as if they're "o"- rings, they're infact squared! Is it my imagination, or is there something in front of the seal its self? Such as a hard plastic retainer? This might be where I'm confused.......I was sensitive in using a "pick" to remove the seals, as to possibly scar the alum. where the seal snugs inward. Is there another way to revmove the seal?

    There are 2-ea. cuts at the end of the shaft where the pinch both rides in, why are the 2-ea. cuts? If I replace the shaft exactly how I removed it, will I still need to have someone go through each gear and examine how they engage?

    On a side note; while dismounting my engine mount bolts, rust came out of 3 of them. Is this normal? This car has no rust whatsoever....

    Thank you very much!

    Chris.
     
  2. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    #2 Verell, Feb 5, 2006
    The std seals are indeed square cross-section rings.

    I believ that the early carb'd cars used o-rings which were then superceded by the square seals.

    Several people have reported excellent results using quad-seal o-rings. Belive a picture was posted in one of your other threads about this project.

    There really doesn't seem to be any way to get the rings out other than using a hook shaped pick to slip around them. You can blunt the end with a file if you're concerned about scratching the ring groove OD.

    The '2ea cuts' don't ring a bell, could you post a picture? (BTW, max pix size you can upload is 640x480.)

    If you replace the shaft in the exact position you it was in when you removed it, you shouldn't have to adj. things.

    However, you'd also be the first person ever to pull that off, so plan on either having someone help you adj. things, or else get Kermit's shifter alignment tool. See:

    http://www.durable1.com/ShifterParts.htm

    The tool is a big help in getting your shifting properly adjusted. It doesn't do it all for you, but does increase your chances of success before you give up in frustration & call someone to come over to help you.

    The square engine mount spacers are notorious for trapping water from when the car is washed. It then sits in there almost indefinitely & corrodes things. Std fix is to drill a ~4mm or 3/16" drain hole thru the joint between the shock mount spacer & the block. In some cases, the engine mounts themselves will trap water. Again, fix is a judiciously drilled drain hole.

    BTW,
    Convention is to start a thread for a project & keep all discussion, progress reports, questions, etc. in that thread. Makes it possible for someone to use it for reference later. It's almost impossible to go back & jump around between a half-dozen threads to reconstruct what was going on.
     
  3. jwise

    jwise Formula Junior

    Apr 2, 2003
    781
    Portland Maine
    #3 jwise, Feb 6, 2006
    Last edited by a moderator: Sep 7, 2017
    I don't remember 2 cuts in the shaft either- weird. Please post a photo.

    I've attached a close up of the ring that holds the seal in the wall of the case. You just need to use e pick to fish out the old seal- sounds like you already figured that out.

    Also- I've put in a photo of my shaft end showing one detent.

    The final photo shows the drain hole we drilled into the mount. Did you get water/rust from this spacer or the mount itself?

    Keep up the good work- sounds like you are almost there.
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