Shifter Shaft Adjustment | FerrariChat

Shifter Shaft Adjustment

Discussion in '308/328' started by Joe_CT, Nov 13, 2009.

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  1. Joe_CT

    Joe_CT Formula 3
    Owner

    May 16, 2007
    1,780
    CT
    Full Name:
    Joe
    I just finished replacing my cracked oil sump cover and want to adust the shifter shaft while it is up in the air. It currently gets caught up on the lower section of the gated shifter. Anyone know the best procedure for making that adjustment? I see there is what looks to be an adjustment section in the shaft just in front of the oil sump, but not sure how I would adjust it. Any help would be greatly appreciated. Joe
     
  2. tvine

    tvine Formula Junior

    Jul 19, 2006
    270
    Cadillac, Michigan
    Full Name:
    Tom Vine
    What I did is put it in 2nd gear and adjust it until it is centered in the gate. Then verify it is centered in the gate for all gears. I had to tweek it a couple of times to get it right.
     
  3. Joe_CT

    Joe_CT Formula 3
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    May 16, 2007
    1,780
    CT
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    Joe
    Thanks for the response. How did you actually make the adjustment?
     
  4. Helmut

    Helmut Formula Junior

    Dec 11, 2004
    640
    You need to take off the transmission cover so you can see the forks position, BE CAREFUL NOT TO LOOSE THE LITTLE SPRINGS AND BALLS THAT ARE GOING TO FALL OUT MOST LIKELY WHEN YOU REMOVE THE COVER, its easy to put them back with some grease holding them in place, you will see, just open it up slowly and look along the edges of the cover as that's where the springs and balls are. Then it is very helpful to have a second person sitting in the car moving the shifter. You can change the position of the fork by adjusting the large screw right in front of the gearbox. It can be tricky to tighten the screw with the counter screws once you are happy with the shifting action as the tightening can throw off the positioning again.

    Good Luck
    Helmut
     
  5. mwr4440

    mwr4440 Five Time F1 World Champ
    Rossa Subscribed

    Jun 8, 2007
    57,977
    Bavaria, The 'Other' Germany
    Full Name:
    Mark W.R.
    #5 mwr4440, Nov 14, 2009
    Last edited: Nov 14, 2009
    I am a novice, having just done this all once, but-- the tricks have been posted above.

    I think you did it a$$ backward. You adjust the shift-shaft FIRST then replace the pan. Hope you changed out the silent block bushing(s) too ... "while you were there."

    I am sure a seasoned mech could do it "by feel" but I could not. I tried for TWO WEEKS and finally gave up.


    Adjusting the lever is easy but a PITA. Put the shift lever in second, loosen the locking nuts on the shaft and adjust away rotating the shaft (hence, lever) and/or 'turn-buckle' until you have the same amount of space from the gate all the way around the lever. Then shift to third. Check this spacing also.

    Judging lever spacing between second and third, I looked for lateral space (left and right) to be equal. If it is laterally equal in second it should be equal in third. I then adjusted for space between the lever and the end of the gate to be equal in both second and third. Then tightened it up. TIGHT.

    ALL THIS MUST be accomplished ensuring the rear shaft and gear "engagement Y" in the tranny does not move from perfect alignment which is VERY possible (read: likely) when you losen the exposed locking nuts.

    Although not impossible, that is why this is USUALLY suggested as a two person job; one to shift and one to adjust.

    You can either: a) Try it blind (then see also (b):( , b) Pop the pan off, or c) Just forget about it until "next time."

    Good Luck with whatever you decide.


    Oh, another thought. IF you could figure out a way to LOCK the rear end of the shaft to keep it from rotating, THAT Just MIGHT work.
     
  6. jimshadow

    jimshadow F1 Veteran
    Lifetime Rossa Owner

    Feb 19, 2006
    6,252
    Indiana/North Carolina
    Full Name:
    JIM
    +1 on replacing the shift bushings!!!
     
  7. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
    3,664
    New England
    Full Name:
    David Feinberg
    Joe,
    This is the best advice...and you're looking to center the shifter handle both latterly and horizontally in the gate, whilst in sencond..then in third. In other words, when you're in second, the shifter should be centered in the gated area for that gear. Notice how far "North" the shifter is in second...then go into third and verify that the shifter is the same distance from the end of the gate that you were while you were in second.

    At the transaxle, you'll see a "turnbuckle" with a lock nut on each end. One of the nuts is RHS, the other LHS. You loosening these nuts, you'll be able to lengthen/shorten and adjust the angle of the shifter rod going into the car. Only a tiny, tiny adjustment will be needed, so prudence is key here.

    Although not a mandatory step, sometimes it does come down to this. If so Joe, I have a "tool" that you're welcome to borrow to hold the shifter balls and detent springs in place whilst doing this adjustment.

    Not really...he simply replaced the engine oil pan, so the shifter forks weren't visible. On the other hand, replacing the silent block bushing is always a great idea while you're doing a shifter shaft seal replacement.

    Yep...this pretty much sums it up!
     
  8. mwr4440

    mwr4440 Five Time F1 World Champ
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    Jun 8, 2007
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    Mark W.R.
    Yep, misread the OP. Seriously, thanx for pointing that out.
     
  9. tatcat

    tatcat F1 World Champ
    Owner Silver Subscribed

    Sep 3, 2001
    11,013
    panama city beach FL
    Full Name:
    rick c
    do your search for shifter shaft seal replacement. there are several very consice procedures on making the adjustment in there. it is very tricky but if you go through all the threads all will be revealed. the best thing is it's a cheap fix requiring mostly time. it's one of those back and forth things. perserverance furthers. good luck
     
  10. Joe_CT

    Joe_CT Formula 3
    Owner

    May 16, 2007
    1,780
    CT
    Full Name:
    Joe
    Thanks all for your comments and feedback. I followed much of the advice given above and was able to get everything adjusted properly. It took a few tries, but the shifter now falls right in the middle of the gate.

    Thanks again for all of your feedback.

    Joe
     

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