A clonk, a groan and a bit of a lean...

I've not seen that, and can't see how any kind of sliding joint wouldn't send the rear of the car off sideways all the time. This does need pics.
 
Trying to go through all of my old pics of underneath of car. Maybe it isn't a sliding joint, certainly by memory did look like one though. I'll post anything if I find it. Bear with me.....
 
Just had a look under there, I've got it wrong it's not a sliding joint but there is a wider part of the shaft where it joins the inboard U/J. Looks just like a collar but when you scratch the crud off it it's just a larger part of the shaft, probably balance weights or something. Apologies for the misunderstanding. :oops:
 
No problem. You may have been thinking about those Stags you've had to be under in the past, as they have sliding joints in the driveshafts.
 
It's entirely possible, it can all merge into one big classic car sometimes. (Which I think is how BL viewed the situation in the late 70's with badge engineering) :D
I did an Emeryson recently which is a Jag based racing special from the 50's which had a bizarre de dion type arrangement but a solid tube and that had sliding joints. Grey matter deserting me again :roll: :roll: :roll:
 
To go back to basics, compression of the suspension causes the tube to lengthen. If it is more on one side than the other, then the tube twists as well.

A groan when doing this is qhite possibly the tube, but as likely to be dampers. Most unlikely to be other suspension joints.

Chris
 
8) that's all cool and a great discussion :)

's clever stuff this de dion business.

An update on the lean - if I pop the rear on axle stands then the lean goes away - so it's somewhere in the rear.

The groan is still present but slightly lessened, I wonder if the oil I put in is finally getting to where it's supposed to be. I can 'feel' the groan through the tubey part, but it's nowhere near as bas as before.

The clonk has gone from one side after tightening the shock tops from inside the car, found a rusty hole but turns out it had been patched from the other side :) The clonk on the other side I'm beginning to believe is a badly fitted silencer catching on the rear radius arm mounting bracket thing. Which isn't a problem at all, really, and is easily fixed :)
 
Might just be a weak spring on drivers side, you could swap them side to side.

Basically it's just requiring a bit of "fettling", they always seem to respond well to a bit of TLC, just like a Lady should ! :D
 
it's update 'o' clock!

I replaced one of the drive shaft UJs as it had a good bit of wobble in it, and the result is that the clonk is lessened (probably need to do the others as well to totally get rid), the lean has all but disappeared and the groaning is lessened, as I moved the de-dion in and out a bit while taking the driveshaft off and put more oil in it.

so an all round successful fix, even though getting the old cup bearings out was hard work ( 3 of the 4 were dry, 2 had started to destroy the outer..) the new ones went in just fine. Dad managed to drop the driveshaft on my finger though. Ow.

I did notice that there is a rubber thing under the rear spring (between it and the trailing arm) , which was looking a bit tired on the driver's side, might be 'helping' the lean.

thanks for all your help!
 
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