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Thread: Steering.

  1. #1
    Full Bloody Rebel! Mad Mark's Avatar
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    Steering.

    I understand the pitman arm and drag link should work in tandem. Now, I can't see the pitman arm properly, but can see the drag link. With the wheels pointing straight, it points front to back in a straight line. I'm guessing this is right.

    Is it?
    If I wasn't meant to go that fast, the pedal would only go half way!

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    Official RnS Addict mygasser's Avatar
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    what car's this on mark?
    need a job done on your project? i may be able to help.

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    Full Bloody Rebel! Mad Mark's Avatar
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    A big red and white one Neil.


    My '55.


    The reason I'm asking is I'm checking all the set up on the front suspension and this is checking the middle set of the steering.

    The lower A-arm seems to have been damaged and I can see a gap between the front face of the A-arm and the back of the bush.

    I can't apportion blame, but it wasn't me. It's been hit on the front edge bending the lip down and pushing the front bushing mount rearwards.

    I've checked the caster (1deg pos) and camber (1/2deg neg) and the car is still wandering a little, enough for me to lose total confidence, whereas before I could chuck it around.
    If I wasn't meant to go that fast, the pedal would only go half way!

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    Can you not get a portapack in and bend it all forward again.if you can up the caster angle you will find it shouldnt wander,but thats prob depends on the state of the rest of the components
    Rod/custom/drag build profiles:
    Mini | Pop | Porker | Trike | Morris 8

    | 48 chevy coupe | ford f100 | tube chassis,d pop

  7. #5
    Off the Xmas card list kapri's Avatar
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    All systems may vary in details so really it needs a specialist in Tri chevies to answer that . The standard steering box set up would me a steering box with pitman arm and an idler arm bolted to the opposing chassis leg . These two turn at the same speed/ ratio to one another to move track rod tie rods at the same time. This is done via a drag link that connects pitman arm to drag link.

    The first thing to do would be a 4 wheel laser alignment , available at most top end tyre suppliers to see current camber caster ,kpi etc setting along with alignment of front to rear axles. Cost around £30 round here . Before spending out you need to ensure no play at all in steering components including those that may have been replaced BEFORE the accident .

  8. #6
    Official RnS Addict mygasser's Avatar
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    as wayne says add a bit more castor and it'll feel more stable. from memory its shims on the upper wishbone. remove from the rear and/or add to the front to get more castor, then have it rechecked. the a arm damage sounds like speed bump type impact, had similar myself before and had to straighten the arms.
    need a job done on your project? i may be able to help.

  9. #7
    Official RnS Addict Steve 5-6-7's Avatar
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    Mark before you go any further you must remember Rule One of steering geometry.
    If any single part is worn, bent, loose or damaged the geo will be useless
    That even includes the wheels you must ensure everything is sound before you start.
    When was the last time you rebuilt the front end ?

    They were shimmed from new .

    Steve Hale had his geo set up last year by a hot rod shop, it might be worth getting them to sort it out once you have you have replaced anything that is ****ed
    Sorry if I repeated anything mentioned above




    Nostalgia.......it's the future

  10. #8
    Official RnS Addict Steve 5-6-7's Avatar
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    Ecklers sell shafts with 2° positive camber.
    Nostalgia.......it's the future

  11. #9
    Full Bloody Rebel! Mad Mark's Avatar
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    I understand all that guys.................. NOW!!! I have changed the caster from 1deg neg to 1 deg pos already but need more shims to get any further.

    No, it's not a speed bump one Neil. It's hit something solid and unmoving...... like a raised drain cover. I'll have to take the arm off to get to checked and a guy named Simon from the Trifive facebook page has a spare pair of A-arms and he'll keep them for me for when I get down to pick them up.

    Still need a definite answer on the bent arms effect on the way she drives???
    If I wasn't meant to go that fast, the pedal would only go half way!

  12. #10
    Official RnS Addict Steve 5-6-7's Avatar
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    Quote Originally Posted by Mad Mark View Post

    Still need a definite answer on the bent arms effect on the way she drives???
    Bent = wrong = drives ****. That's as definite as I can put it.
    Nostalgia.......it's the future

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