Front Ride Height

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panky
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Front Ride Height

Post by panky »

I've been doing a little work on the front end of my traveller. Fitted a set of dampers filled with SAE 30 - brilliant, fitted new tie bar bushes, cured a little knock. While I was under there I noticed the top trunnion bushes were passed their best so replaced them with a new rubber set, undid the track rod and tabbed nut on the pin and twisted the upright off the pin, fitted the new bushes and tightened everything up. First time I've done it and all went well until I noticed the drivers side seemed higher than the passenger side. I hoped the new bushes were just holding the suspension up a little so I drove around for a few days expecting the ride height to level out - but it didn't. So today I slackened the nut off until it was loose and put the weight of the car back on the wheel and bounced the front of the car, wedged a bar to lever the damper arm where it passes through the inner wing to put even more load on the suspension and tightened the nut up. Still a difference in ride height :cry: It was fine before I did the trunnion bushes but now there is over an inch difference, not very scientific but my fist just fits between the tyre and the wheel arch on the passenger side but I'd need a fist with an extra couple of fingers to bridge the gap on the other side, have I missed something. I did check the rear height and the passenger side sits about a centimetre lower that the other side but I assumed this was because of the raised height on the opposite corner, I jacked the back up on the diff to take the load off the rear springs but the difference on the front stayed the same.
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bmcecosse
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Re: Front Ride Height

Post by bmcecosse »

The top bushes have nothing to do with ride height..as you proved. I guess you didn't notice before. How do they compare if you measure distance from trunnion top - to tip of bump stop? The 'wing' can be a guide - but may not be fitted correctly. How about when you sit in the car - is it level then? And it 'could' be the rear suspension low on the nearside - thereby tipping the offside front up slightly. A tip someone posted recently is to jack up the car at the front, under the absolute centre of the front crossmember, and look now at the rear suspension - compare clearance from bump stops to chassis plates. Are they even? Next test - jack up the rear of the car - again in the dead centre (heavy plank across behind the fuel tank) with the rear axle dangling and now compare the fronts again by bump stops , not by 'wings'.
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panky
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Re: Front Ride Height

Post by panky »

Yes I remember the thread but couldn't find it. The diagonally opposite corner is sitting very slightly lower, I did jack the car up under the diff to take the weight off the rear wheels which made no difference to the front but I'll try the plank method tomorrow along with the measurements you suggest. The difference between the front heights is really obvious, I'm sure I'd have noticed it before so something has changed.
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bmcecosse
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Re: Front Ride Height

Post by bmcecosse »

Lifting under the axle still involves the springs - so no gain there. The axle must dangle......
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panky
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Re: Front Ride Height

Post by panky »

One of the front bump stops has fell off somewhere :cry: But after a bit of measuring with everything dangling :o it looks like it is the front that's out. From what I remember reading dropping one spline on the torsion bar should be enough to level it up I think (about an inch?)
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bmcecosse
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Re: Front Ride Height

Post by bmcecosse »

Yes - one spline is about 1 to 1.25" . You MUST replace that bump stop. There is a 'fine' adjustment on the other end of the T bar - but it's often pretty rusty - although you could investigate. Depends where it's sitting really - each little hole in the adjustment plate is about 1/4" change - up or down.
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panky
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Re: Front Ride Height

Post by panky »

Excellent, thanks for that - new bump stop on order.
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