by AndyNW66 » Thu 10.03.2016, 14:28
Having just successfully completed this job on my 120,000 mile N/A I thought I’d offer the following comments and hints for anyone considering tackling the same job.
It is a perfectly reasonable job for a home mechanic to tackle and required no special skills or tools but it did require working in some awkward spaces, i.e. the driver’s footwell behind the pedals. It took me 3 afternoons’ work, say 10 hours, but with what I know now I could probably do it in 5 hours or less in 2 shifts.
Firstly, the symptoms of the problem:
After 24 years of pleasant, low, steering forces, they suddenly stiffened up. The steering didn’t become heavy as such and felt pretty normal for small movements up to say ⅛ turn but required more force for larger angles and it would not self centre. Also it would seem to free again for larger angles still.
Confirmatory test:
Undo the 4 x 7mm nuts holding the glass fibre lower u/j shroud to the bulkhead. The sort of small sockets and “screwdriver-like” drive you get with cheap socket sets are ideal for this. The shroud is underneath the pedals and the carpet will need to be lifted away and maybe a small amount of underlay trimmed away to ease access. Lifting the shroud and its grommet up the intermediate shaft as far as possible allows the lower u/j to be seen and a thorough spraying with oil around all the pivot points is possible. Replace the shroud but there’s no need to put the nuts back on at this stage. In my case a short drive showed that the stiffness had reduced but not gone away.
Replacing the u/j:
Firstly, allow enough space to jack both front wheels off the ground. There is no need to crawl underneath the car but the steering rack spigot does need to be rotated during the process to get good access to the u/j pinch bolt. This is easier by moving the front wheels rather than re-engaging the steering column-u/j on the intermediate shaft splines and the steering wheel on the column and then turning the steering wheel.
Following the instructions in the manual was quite easy and removal didn’t take very long. Removing the steering wheel required some hard pulling/jerking and would have hit me in the face if I hadn’t left the nut in place, but loosened. Refitting was harder, mostly due to difficulties aligning steering column mounting brackets while supporting the weight of the column. The manual suggests that the inner column can be withdrawn from the outer column once the upper circlip is removed and the upper u/j separated from the intermediate shaft. If this can be done with the outer column still in situ then I think the whole job becomes very much easier indeed. Unfortunately the manual doesn’t describe doing things in that order and I didn’t think of trying it myself until after I’d completed the job. Having got it all back together I wasn’t going to strip it apart again to see if it could be done an easier way! The column, inner, or outer and inner together, only has to be withdrawn an inch or so to free the upper u/j from the intermediate shaft.
If removing the outer column:
The column shrouds are held in place by 4 self-tapping screws and three more screws that go into hexagonal extension pieces. The lower shroud requires the column height adjust lever to be down to remove it. The upper shroud requires two of the hexagonal extensions to be unscrewed to allow it to be removed.
For the outer column itself I would initially undo just one of the two bolts holding the bottom fixing to the pedal box. I would then obtain a similar bolt, saw the head off it and screw it lightly into the hole. This will now act as a locating pin for re-assembly and save one of the jobs that took most time. The other bolt can now be removed as well as the two upper mounting bracket bolts and the upper u/j pinch bolt. The weight of the column can now be taken on the lower part of the fascia panel, it doesn’t need to be completely removed. If it has been found necessary to unplug the connector block from the back of the ignition key unit be careful. There’s a small brass rotating contactor inside that may be loose. It may fall out on to the carpet and be damaged during your exertions in the footwell, so put it somewhere safe. It’s easy to work out how to replace it in the rebuild.
The pinch bolt on the upper u/j to intermediate shaft junction has a 9/16 head. The nut is welded to the u/j so it doesn’t require a spanner on it when loosening the bolt. Separate the upper u/j from the intermediate shaft.
Remove the shroud and grommet covering the lower u/j. Leave the intermediate shaft attached to the lower u/j for now. Why will become clear in a moment.
The pinch bolt at the lower u/j to steering rack spigot junction has ½in head. With the bolt across the opening in the floor the nut and bolt can be undone with 2 x ½in ring spanners; one may need to be essentially flat rather than the double-cranked kind because there is not much spare space across the hole. One of them being a ratchet-type ring spanner would also help. Be careful not to lose the nut through the hole in the floor plan. I don’t suppose it would do any harm and might just fall onto the garage floor. On the other had it may hang up somewhere and be lost. The spigot now needs to be rotated through 90deg (by turning the front wheels a small amount to one side or the other) to allow the pinch bolt to be withdrawn.
The u/j and intermediate shaft can now be removed. A large screwdriver will probably be necessary to lever the u/j off the splines.
At this point it may be possible to feel the problem in the u/j by rotating it about all axes, it’s probably a worn or broken needle bearing. If not don’t worry, you may as well replace it anyway now you’ve got this far!
Obtain the (ex-Land Rover) replacement part from ebay, or Britpart, or wherever. New ones are inexpensive, say about £10, so I wouldn’t bother with a used one.
The angular orientation of the intermediate shaft within the lower u/j is critical apparently so find a way of marking the shaft before removing it from the old u/j, Tippex, say, so that it can be immediately replaced in the new u/j with the same orientation.
Re-attach the u/j to the rack spigot aligning the pinch-bolt hole with the flat on the spigot. Insert the pinch bolt and reverse the front wheel movement to allow the nut to be put back on the bolt and tightened. Replace the shroud and grommet.
Re-attach the upper u/j to the intermediate shaft, again aligning the pinch bolt hole with the flat on the shaft. This was one of the parts of the job I found hardest, trying to align the steering column u/j to engage correctly on the intermediate shaft without being able to see either while doing it. Much of this work involved lying half on the garage floor and half in the footwell trying to see enough to work out what I was doing. It may have been easier with the seat removed.
The home-made locating pin should now allow the outer column to be repositioned and refastened quite easily. Without the pin this was another difficult and time-consuming job, supporting the weight of the column while trying to align the holes sufficiently to engage the first bolt. All the steering column bolts and the upper u/j pinch bolt can then be tightened.
At this stage it’s probably a good idea to check the indicator/lights stalk and windscreen wiper stalk still work. Particularly, check the indicator self-cancel is working (put the steering wheel on lightly). If not, it may just be that the indicator unit hasn’t been fully pushed home. With the indicator unit separated from the bearing carrier It’s easy to see the spring-loaded button at the bottom of the unit and therefore to check whether the unit itself is still working correctly.
Refitting the steering column shrouds also took some time. The problem was aligning screws with the hexagonal extension pieces. At my second attempt I used a mirror on my lap whilst sitting in the seat and this way it was much easier to see the necessary alignment.
If you’ve remembered to mark the steering wheel to column orientation on removal then it should be correct immediately on replacement. Otherwise you’ll spot any discrepancy as soon as you drive off and can fix it immediately before fully tightening the steering wheel bolt.
Take the car out for a test drive on your favourite test route (as if that needed saying!). The absolute pleasure of returning to beautifully light-weighted steering makes the grubbing around in the footwell all worthwhile.
I hope that helps someone – if it has please let me know.
Last edited by
AndyNW66 on Thu 10.03.2016, 22:26, edited 2 times in total.