Sounds like the rear shocks are under-damping the suspension. I'd
recommend changing the shock-oil to slightly heavier oil. Use Spectro
Motorcycle fork oil. Start with 20 wt and see how you like it. If
there's still too much movement, go to a higher viscosity.
YMMV
Andy
Neil Cotty wrote:
>
> Hi all - err again <G>
>
> While I'm here I thought I'd mention a problem I have with my GT which I
> can't solve and it's driving me nuts!
>
> Having rebuilt both the front and rear end of the car with new lever arm
> dampers and all rubber bushes etc I'm faced with the rear of my car
> rebounding when hitting a bump. Let me explain. If I hit a bump in the road
> the front suspension absorbs the impact fine but when the rear hits it it
> tends to bounce up and down a couple of times. This makes for a very
> uncomfortable ride (like being seasick) and occurs at all speeds. It's hard
> to explain but the car feels 'unbalanced' like the front is set higher than
> the rear and the rear is trying to 'catch up' with the front. Confused? I
> am! <G> If I do a bouce test on the rear of the car it appears ok but its
> not when driving. Could this be faulty dampers or the oil in the dampers not
> thick enough etc etc? It is better with more fuel on board, passenger etc
> but not by much.
>
> Everything was changed for new in the rear except the leaf springs which
> appeared to be ok. I never had this problem before the suspension was
> rebuilt.
>
> Cheers,
> Neil.
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