9 replies to this topic

[Abbot]

Help please.

I have just finished putting new roller bearings in the rear swinging arms.  The journal bearings seemed OK so did not change them.

I used the Minispares kit and replaced the shafts and plastic tubes as well.

One side has gone very much as expected, however the other side appears to have a large amount of end float.

This is judged by nipping up the nut, spring washer and big washer.

 

the movement is about 1mm

 

[cian]

The wear is generally in the bush and not the bearing, replace the bush and get it reamed or replace the arm with a refurbished one like I sell

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[Abbot]

I do not think it is wear in the bush as it rotates nicely with no movement.

the play is along the axis of the spindle. 

I would have thought that withe the two big bearing washers nipped up there should be very little play back and forth.

[Spider]

The wear can be in the thrust face of the trailing arm, certainly at ~ 1 mm (near 0.040"), it has way too much, I generally aim for 0.001 - 0.002".

 

If you are certain that everything is seated properly, about all you can do is have the shoulder on the pin ground back or have a step machined in to one of the Thrust Washers.

 

Someone did / does offer Pin Kits that have slightly shorter pins and shims so they can be adjusted, off hand, I can't recall who.

[minimans]

Tighten the nuts fully before checking the play, it only requires the frame to be distorted a small amount to give 1mm and you could easily have done that removing the the arm.

[Abbot]

The arms are not fitted to the subframe.  The gap is withe the nuts nipped up on the big washers on  the bench  so I thing the easiest option is to turn out the washer.

[Ethel]

If they're both off the car you could try swapping pins and washers to confirm it's the arm itself rather than an out of spec pin.

[Abbot]

so with the 2 spidles on the bench they are exactly the same length shoulder to shoulder so then just double checked and the lost stays with the same swinging arm regardless o which spindle is in it.

 

so as I assume the shaft are hardened it must be best to put a recess in the washer.  or ar there any large shims that would do the job?

[Spider]

The shafts are - or should be - very hard (case hardened) and really will need to be ground to bring the shoulder back, The Thrust washers are a little on the hard side, but certainly machinable.

 

I doubt you could successfully use Shims on that part as they'd get chew up.

[Ethel]

I'd do the washer as it's more likely to last for another refurb. You can get oilite thrust washers, but they'll be thicker & likely be more work in fitting. Have a close look at the mating faces of the arm end in case it's worn unevenly