Replacing Anti roll bar rubbers? | FerrariChat
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Replacing Anti roll bar rubbers?

Discussion in 'Technical Q&A' started by Mr Iceman, May 4, 2005.

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  1. Mr Iceman

    Mr Iceman Karting

    Mar 3, 2004
    101
    Canterbury, England
    Full Name:
    Scott
    #1 Mr Iceman, May 4, 2005
    I was just wondering how difficult a job it is to replace the rubbers and bushes on the rear of a 308 GT4. everything looks fairly accessible but am I just kidding myself.

    I am considering upgrading to an 18mm bar available from superformance to try and reduce a bit of the body roll and understeer prior to doing a couple of trackdays this year. My main concern is how much tension is the bar under if any when the rear wheels are off the ground i.e. is it a bugger to get the bar back on?

    as an aside, I notice that some US 308's had the 18mil as standard but european ones had either 11 or 15mil. I wonder if it is due to the extra weight of the cats on the U.S. ones?

    anybody who has done this before youur help would be appreciated, I did a search of the archives but I couldn't find answers to this specific question.

    Cheers
    Scotty

    P.S. anyone who was following the progress of my carb synching experience, the result is that the car is now running better than ever, with no hesitations and a smooth pull up to 7000rpm. It sounds cool too with the airbox sound deadening removed, I'm now running 140 mains(up from 130) and 190 Air correctors (down from 200). the idles are stock at 55 but I had to richen the idle mixture by a turn. (probably should have put this in a new thread!)
     
  2. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
    6,689
    North shore, MA
    Full Name:
    THE Birdman
    #2 Birdman, May 4, 2005
    Hey Scott,
    Glad that carb synch worked out! Isn't it AMAZING what a good synch will do for your car?

    As for the sway bar....at least on the GTB, it's very simple to work on with both rear wheels off the ground. No problem at all. There is a thread in the old Fchat where Verell and I put new bushings on mine. Took about 90 minutes. I don't know if the pictures are still there.

    Jonathan
     
  3. 208 GT4

    208 GT4 Formula 3

    Dec 27, 2003
    1,769
    Brighton (UK)
    Full Name:
    Dan
    #3 208 GT4, May 4, 2005
    Scott,

    I did the ones on mine for it's last MOT and as Birdman says, they are pretty easy. I jacked the car up using a bit of wood under the rear engine cross member, then used another jack under the lower suspension arm to line up the bar and drop link when refitting. The rubber parts are pretty cheap, though the drop links are over £100 if I remember rightly.

    Dan
     
  4. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
    6,689
    North shore, MA
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    THE Birdman
    #4 Birdman, May 4, 2005
    Dan,
    I don't know about a GT4 but on a GTB/GTS do not ever lift the car by the engine cross member!!! (It's not strong enough). Put a jack on each side in front of the rear wheels and grab the main frame. If you bend that engine cross member, all kinds of crap is going to not be lined up anymore!

    Birdman
     
  5. Dave

    Dave F1 Rookie

    Apr 15, 2001
    2,722
    Little Rock
    Full Name:
    David Jones
    #5 Dave, May 4, 2005
    Bushing replacement on the anti-roll bars is straight forward.
    But since your car is 28 years old, I'd have to ask...
    What kind of shape is the rest of the suspension in?
    I'd be hesitant to hit the track without replacing all of the almost 30 year old suspension components.
    But that's just me.
     
  6. Mr Iceman

    Mr Iceman Karting

    Mar 3, 2004
    101
    Canterbury, England
    Full Name:
    Scott
    #6 Mr Iceman, May 4, 2005
    very good question, I've just scoured through all the receipts and paper work for my car ( I knew there was a reason that a full service history was so valuable) and discovered that the shocks were removed and sent to Koni for overhaul almost exactly 10years ago and 17,000 miles ago. obviously I don't know how hard the car has been driven but it has been used fairly regularly in that period.
    What is the life expectancy of shocks between overhauls? remember I'm not out to set any lap records (I wish) but I do want to be safe in a reasonably well handling car.

    Thanks for the responses
    Scotty
     
  7. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
    6,689
    North shore, MA
    Full Name:
    THE Birdman
    #7 Birdman, May 4, 2005
    Check the bushings on the suspension arms too. They tend to disintegrate.
     

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