Suspension woes

You could also try here if you haven't already:
http://forum.australia4wd.com/index.php?showforum=47
Which is a Terracan forum

Greg

Does this occurre with weight in/on the rear of the vehicle or the vehicle lightly loaded? In any case a suggestion would be to go back to the original springs in the rear (leave the shockies as is) and see if this fixes the problem. If it does I would suggest a set of PolyAirs for the rear to handle the towing etc.

Regards

Paul

Ironman are about to release their uprate torsion bars in a few weeks.

Suspension was my main interest when I was with GM reaeewsto

Would define what you mean by 'double bounce'. Is it accompanied by any steering wheel feedback or ongoing shake?
Collyn Rivers

Collyn,
By double bounce I mean that when we go over bumps/ speed bumps etc the front end seems to want to continue to go up and down. It's like the damper is not doing it's job. When we had the Trek and Tow kit in, we used to pick up our daughter from school and had to go over speed bumps, when we did this it felt like the front end was going to cave in under you. The wheels would drop back down to the road with a big thud, even going slow. The edelbrock dampers fitted with the TnT kit have a oil bypass system in them to allow the damper to return to the road quicker, which is fine, but they kept going up and down.
Now we have the OME kit in it is still there, though not as bad, but still, you feel it through the seats.When going over speed bumps now it is a lot better and you don't get that feeling that the front end is going to collapse.

greg

Hi Greg,

I don't have a Terracan, and my only experience with "double bounce" was with a few cars, that
a) had faulty shockers...(in your case they have been replaced, but you would notice the "dead shocker"
b) a cracked spring on the rear of my Rangie.

My regular everyday vehicle is now a Rodeo, and it 'almost' exhibited pogo-ing effect, and lots of steering pull(even after an alignment!)

On it's only ever service at a Holden dealer, I asked if they could align and re-set the torsion bars (I know know how easy it is to do!!), and it raised the car by 50mm (:o and it felt much more steady.

either you got dud OME shockers (unlikely) or you need the tortion bars re-checked/replaced.
If you are up for an easy job, all you need, is some patience, a large socket(easier than a ring spanner), and a good small ruler something about 4-6 inch.
Wind up the tortion bars, the large nut will be obvious, and make sure the bump stop clearance on both fronts is the same (after a test drive or severe bounce test.....a couple of your heaviest freinds boncing the front end up and down!!! :))
Note: you can easily wind it up too much , so take care.

Regardless of spring or torsion bar weights or tension the shocks have to control the rig,obviously yours are not.
I would certainly go back to ARB as something is drastically wrong with the shock valving to suit your vehicle.
Regards

I'd go for the shockies. Had simiar symptoms in a Commodore I had once, stupidly fitted Pedders struts, three sets of struts later finally chucked them out and fitted Munroes, I think. Problem solvered... :-)