Strange problem with shifting?!?! | FerrariChat

Strange problem with shifting?!?!

Discussion in 'Boxers/TR/M' started by kerrywittig, Apr 17, 2009.

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  1. kerrywittig

    kerrywittig Formula 3
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    Nov 10, 2005
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    Kerry David Wittig
    #1 kerrywittig, Apr 17, 2009
    Last edited: Apr 17, 2009
    I got inspired by reading of Shamile's problems with his shifter adjustments in thread http://ferrarichat.com/forum/showthread.php?t=237906&highlight=shifter+block
    to post this one. Here goes...........

    Since day one of owning the car (1987 TR, 3 years + now) It has had this relly "strange" quirk............

    Sometimes if down shifting without being very precise from 4th to 3rd, the transmission will go into 5th gear rather than 3rd. I can re-clutch the trans, push the shifter into the neutral position, up to the 4th gear position and then very deliberatelly re-shift it into 3rd and voila', there we are finally in 3rd. Which by this time I have had to over-brake and have rolled thru the corner..........momentum has been lost and the whole idea of attacking the corner/turn has just been tossed out the window. This happens at least once, every outing with the car if driving aggressively.........Which is the whole point to owning and driving a Ferrari, right?

    Also if not being "precise" and "delierate" when down shifting from 2nd to 1st...AND THIS IS WHEN IT GETS SCARY.....the trans will feel like it has gone into some really bad place like.......... reverse!! I can not tell anyone exactly where it has "gone", because I have NEVER let the clutch out, the maybe half dozen times it has done this.............why? Because there is a very distinct "feedback" that comes through the shifter to my right hand, and the clutch sends a very faint and odd type of vibration, weird sensation to my left foot and there is a change in the sound that comes from the engine/transmission that just sounds to my ear that something is spinning/rotating way to fast.

    I wish I could give the readers that be, a more "technical" description of these "feelings", but I have always been a person that when in a car or motorized vehicle that I guess you could say, "Feels the machine through the seat of his pants." I can often pickup from the vibrations and/or the sound of something coming from a "machine" that a wheel bearing, a brake, valves, a drive axle, rear end or a transmissions have a "problem". I have driven friends, relatives and even strangers crazy by pointing out that they have a problem and most likely where the problem is with their car, or are about to, in just seconds after riding down the road whether it be in the drivers seat or as a passenger. 9 times out of 10 it usually proves to be right........there is a problem. I don't profess that this is some magical gift but just something that I have learned over the years from especially driving alot offroad, where the "feel" is so important in such adverse conditions.

    Any way.............Things just don't feel "right"..............Is this an adjustment issue......DOH!....... like I have read about here and there on this BBS? I have put off diving into it until I drop the engine one of these years to do maintainence and valve seals.......

    I have recently read with great interest a reply or 2 by Rifle that describes the very fine art of getting the shifter/linkage to be correct.............Again I ask is this also an "adjustment" issue?

    Thanks for listening,

    Kerry
     
  2. Drew Altemara

    Drew Altemara Formula 3

    Feb 11, 2002
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    I've had the same thing happen both on a boxer and 308. Yo need to rotate the shift stick slightly right/clockwise (sitting in the driver seat view). Put the car in second and make sure you are in second. Loosen the adjustment under the car and retighten but witha slight clockwise bias. The rotation is very small and be sure not to lose your place. It's sometimes a pain breaking the adjustment mechanism loose with two wrenches. Be sure to look at the threads. If I remember correctly the nut on the engine side may be a clockwise to loosen thread.

    Drew
     
  3. fastradio

    fastradio F1 Rookie
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    Apr 26, 2006
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    Kerry,

    This is so very true. Just a little bit of twist goes a long ways....Just take your time and perfection can be acheived.
    On the adjustment turnbuckle, at the transaxle, one nut is RH thread, the other is LH thread.

    David
     
  4. kerrywittig

    kerrywittig Formula 3
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    David and Drew...................Thanks for the insight. I was 99% sure it was an "adjustment thingy", just wanted to get some feedback and some educated "how-to". Ain't FChat great? Post a question and get an answer within minutes..........amazing!!

    Kerry
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    The noise you are hearing in that scary place is the internal shifting finger slipping between the selector forks. That jams the shift forks lateraly against the groove in the slider. It makes a very bad sound but as yet I have never seen any harm because of it. At the factory they often misadjusted them enough so that the finger could get between them. The side plate of the trans needs to come off to rectify it.
     
  6. kerrywittig

    kerrywittig Formula 3
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    Thanks for the info Rifle....................Yet another "chore" to do when time permits. By the way will it be visually a "self-explanatory" adjustment or shall I prepare to tap on some shoulders here for guidance when I get to that task?

    Kerry
     
  7. ferraripete

    ferraripete F1 World Champ

    this was a great read. my boxer did the same thing. and that scary sound you describe fit my car to a "T". thank you for those responding with the remedy.

    pcb
     
  8. Rifledriver

    Rifledriver Three Time F1 World Champ

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    When you crack it open get in touch.
     
  9. donv

    donv Two Time F1 World Champ
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    My boxer did this for a while also.
     
  10. Shamile

    Shamile F1 Veteran

    Dec 31, 2002
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    Dear Ferraristi,

    ....and yet no answer on a good method to remove the silent bloc :(



    Shamile

    Freeze...Miami Vice !
     
  11. 2NA

    2NA F1 World Champ
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    You're kidding right?
     
  12. Rifledriver

    Rifledriver Three Time F1 World Champ

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    I have done it with a long bolt and 2 sockets. If I remember correctly a 3/8 drive deep 10mm Snap On socket is the perfect diameter to drive it out.
     
  13. Shamile

    Shamile F1 Veteran

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    Dear Ferraristi,

    Ummm....."get a 20 tonne press" doesn't count 2NA. I mean, I wish. :) I guess what I'm asking if there is a hand tool sort of like a "bearing puller" or "steering wheel puller" to do the job. I went to Sears & Napa and couldn't find any type of "proper" tool. I don't mind spending money on nice tools....you always need it again. :)

    Thanks Rifledriver. But I'm amazed at the amount of pressure that's needed to remove the bloc from the shifter side. Like I said, I snapped the bolt I was turning down the nut on pull the bloc up into a spacer I fabricated at my facility. When something is that tight, I like to stop and ask for advice as perhaps I'm not doing it right.

    It seems the method you illustrate is the same I was thinking. I guess I need to upgrade the strength on the bolt.


    Shamile

    Freeze....Miami Vice !
     
  14. Rifledriver

    Rifledriver Three Time F1 World Champ

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    The factory tool is essentially the same thing and I have never seen a bushing as tight as you describe. Double check you are really just pressing on the bushing shell and the reciever is not blocking the bushing on the other side.
     
  15. 2NA

    2NA F1 World Champ
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    An alternate although more time consuming method involves pressing out only the inner steel piece and the rubber (use a socket that will fit inside the outer steel sleeve). This won't require much force especially if the rubber is softened. Then you can put the part in a vise and use a hacksaw (with the blade assembled through the bushing) to carefully saw a slot in the steel sleeve. It should punch right out after that.
     
  16. Shamile

    Shamile F1 Veteran

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    Dear Ferraristi,

    First.....I take this back. 2NA, Rifledriver....I really appreciate the advice and followup.

    I did a double check with an auto mirror to make sure I wasn't pressing against the shifter casting. I think Verrel's suggestion on PB blaster might be the cure.


    Funny, I was thinking the same thing if all else failed. I was just worried about putting a scar or knick on the bushing hole surface.....even with patience being the order of the day.

    I'll start the PB soaking tomorrow morning.



    Shamile

    Freeze...Miami Vice !
     

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