pendle0907 Posted December 8, 2007 Share Posted December 8, 2007 can anyone help me, recently changed suspension bushes for deflex , renewed all ball joints and new track rod tube. since then when i go over a bump in the road at any speed over 50 mph my steering and front wheels shake violently!!!!! . i have tightened all ball joints and checked for play, checked springs for damage and retightened all nuts and bolts in trailing arms , shocks etc. all to no avail.... cant think where to go next. HELP!!!! i drive a rr classic v8 auto 1992 Quote Link to comment Share on other sites More sharing options...
bishbosh Posted December 8, 2007 Share Posted December 8, 2007 Several things to check: 1. Steering damper - is it functioning correctly? 2. Swivel preload - too little and you will get this shake. 3. Tyre pressures / balancing / tracking. Deflex bushes tend not to last too well so keep your eye on them... Good luck Quote Link to comment Share on other sites More sharing options...
trr777 Posted December 9, 2007 Share Posted December 9, 2007 What about the double knuckle joint thing between the steering coloum and the steering box?, play there is very dificult to check and is often missed on MOTs Quote Link to comment Share on other sites More sharing options...
pendle0907 Posted December 9, 2007 Author Share Posted December 9, 2007 think i'll change the steering damper first and see where we go from there, dont fancy doing the swivel preloads thoe! Quote Link to comment Share on other sites More sharing options...
V8david Posted December 12, 2007 Share Posted December 12, 2007 I changed the steering damper on mine recently (1989 Vogue 3.5). First bump i went over past 50mph and the steering was shaking like a ****ting dog. Tried everything but it was the swivels in the end. Always the worst job needs doing. Just checking the torque on the bearings shouldn't take too long tho. Are you getting odd/unbalanced tyre wear aswell? Quote Link to comment Share on other sites More sharing options...
landmannnn Posted December 12, 2007 Share Posted December 12, 2007 Sounds like panhard bushes. Deflex stuff is good except for the panhard bushes. Quote Link to comment Share on other sites More sharing options...
richardthestag Posted December 13, 2007 Share Posted December 13, 2007 I had this problem First replaced the shagged out front dampers, one of the lower bushes had disintegrated and the damper was loose in its mounting. Checked the steering box and play was well within tolerances Checked the steering damper which only suffered from knackered bushes despite looking quite new. Probably shaken to death Next I changed all the steering ball joints and got the tracking setup correctly Next I poly bushed the front axle, don’t know what type but they were red ones from famour four. Did the back axle some time later nice smooth ride now Still jiggled but not as bad nor as frequent, but once it kicked off it was violent. Had some real brown trouser moments at 70mph Checked the swivel preload and found it to be a little loose. Removed a couple of shims to tighten things up. That made it even better but it still would vibrate at 70mph if I went over a manhole cover etc. Rechecked the dampers and found that the rubbers had settled slightly so tightened them up. Also replaced the anti roll bar links on the front axle as one of these was fubar Thought this had fixed the problem but then it went mental when I drove over an ant on the m4 at 70mph one night. Had to slow to 40 before it stopped wobbling. FMB When I got home I checked the front axle and found the slightest of vertical play in the front wheels. This could only be the top swivel pin so I stripped em and renewed top pin, bush and bottom bearing. About 2hours per side and never had the problem since. HTH Quote Link to comment Share on other sites More sharing options...
pendle0907 Posted December 13, 2007 Author Share Posted December 13, 2007 I had this problem First replaced the shagged out front dampers, one of the lower bushes had disintegrated and the damper was loose in its mounting. Checked the steering box and play was well within tolerances Checked the steering damper which only suffered from knackered bushes despite looking quite new. Probably shaken to death Next I changed all the steering ball joints and got the tracking setup correctly Next I poly bushed the front axle, don’t know what type but they were red ones from famour four. Did the back axle some time later nice smooth ride now Still jiggled but not as bad nor as frequent, but once it kicked off it was violent. Had some real brown trouser moments at 70mph Checked the swivel preload and found it to be a little loose. Removed a couple of shims to tighten things up. That made it even better but it still would vibrate at 70mph if I went over a manhole cover etc. Rechecked the dampers and found that the rubbers had settled slightly so tightened them up. Also replaced the anti roll bar links on the front axle as one of these was fubar Thought this had fixed the problem but then it went mental when I drove over an ant on the m4 at 70mph one night. Had to slow to 40 before it stopped wobbling. FMB When I got home I checked the front axle and found the slightest of vertical play in the front wheels. This could only be the top swivel pin so I stripped em and renewed top pin, bush and bottom bearing. About 2hours per side and never had the problem since. thanks to you all for your replies , changed all ball joints yesterday , new steering damper and removed 2 shims from each swivel and tightened down . when doing the shims i removed the right hand ball joint and the hub just turned all on its own , checked the pull and it only regitered 2lb, removed 2 shims and rechecked the pull and it now registers 15lb, left hand side was just as bad!!!!!!. will do a road test today and find out the results off my hard labour. Hope its fixed as i wont know where to go next!!!! will keep you all posted , many thanks Quote Link to comment Share on other sites More sharing options...
richardthestag Posted December 13, 2007 Share Posted December 13, 2007 thanks to you all for your replies , changed all ball joints yesterday , new steering damper and removed 2 shims from each swivel and tightened down . when doing the shims i removed the right hand ball joint and the hub just turned all on its own , checked the pull and it only regitered 2lb, removed 2 shims and rechecked the pull and it now registers 15lb, left hand side was just as bad!!!!!!. will do a road test today and find out the results off my hard labour. Hope its fixed as i wont know where to go next!!!!will keep you all posted , many thanks Ideally when checking the preload you need to strip right down to the bare hub. i.e. disc, caliper, drive shaft and rear hub oil seal all removed? I am guessing, apologies if completely wide of the mark, that you are making the saem mistake that I did First time round I removed a shim and went for a test drive and after an awful lot of farting about I got the square root of nowhere near solving the problem. I also probably spent more time jacking up and fiddling with shims than if I had done it properly which is what I did second time around. I got new swivel kits from e-bay and had each side done in about 2hours including fitting new top bush, pin and bottom bearing. quite an easy job really, the naked hub is much easier to check the preload on too B) Good luck HTH Quote Link to comment Share on other sites More sharing options...
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