Mad Bull front shocks

[Sammy]

Hi All.

I've now got a set of yellow CVA shocks on the front - great.

Problem is, with my 15T motor, the reversing problem with severe wheel wobble is only increased...

I feel that if I put heavier (thicker) oil in the front, it should help.

At the moment, I'm running 45WT oil as this was all I had.

What would you recommend, as I need really thick stuff.

Thanks.

Sam

[fury_dice(2)]

I think you'll find that the wheel wobble on the Mad Bull is down to the steering rather than the shocks - there is a shedload of play in the linkages. When we had one of these, I made up a more rigid steering linkage with some ball-ends and threaded road and it helped a bit (you will need to dremel the front shock tower to get it all to fit properly).

Failing that, just don't drive backwards [][]

[Sammy]

Thanks David - I'd had the second thought already.

With mine, yes, there's stacks of play, but the shocks do compress in reverse.

I'm thinking of putting heavier oil in - would this be towards 70 or 10?

Cheers.

Sam

[jozza]

Another fix which works well on the Mad Bull is to apply some heatshrink to the front suspension arm pivots to make them a bit less loose where they go into the body.

Without stiff shocks and springs on the front, the 'Bull will always squat down and wobble like mad when it reverses, it's all part of the charm []

Do you have the standard springs on the shocks? I used Schumacher springs and it improved the wobbly-squats, possibly some harder springs might help, and also make sure that the biggest shock spacers are fitted too..

[DJTheo]

As said its part of its construction (and charm?), you could try stiffer springs but then it might handle worse. Anyway why do you care so much about how it drives reverse [?] Stiffer oil has a higher number (viscosity).

Cheers

[HunterZero]

My Frog started to wobble in reverse. I found it was due to wear and play in all the front suspension linkages. After a while longer, it wouldn't go forwards in a straight line either. Another point of wear is the front axles if you're not using bearings.

I'd take a look at overhauling the suspension to reduce the amount of play in the suspension. The heat shrink tubing approach sounds like a good idea, but bear in mind the suspension mounts may have worn into more an oval or egg shape.

- James