11 replies to this topic

[Pauly]

Hi,

Managed to build my cross pin diff up today but it seems to lock up when you torque the crown wheel down?

Paul.

[Sprocket]

That will be the new Mica washers.

Try some good used ones

[Pauly]

Ill pop the old ones back in then, does anyone actually use new fibre washers?

Paul.

[Guess-Works.com]

Yes...

[Pauly]

Does anyone use new washers without it locking up .

[minischubi]

Sorry for exhume this old thread.

Got the same problem today. Purchased an Minispares-Crosspin-Diff and it locks if i torque down the crownwheel. Tryed to use the old fibre washers, but it still locks...

tryed the second Diff from an Friend, the same problem... (both purchased Dec 2010).

Compared to an old Minispares Diff mine looks a little bit different (Holes for crown wheel are drilled through and the planet gears looks different)
Parts are also not changeable.

Is it an new manufacturer?

[Guess-Works.com]

post up a picture...

minispares x-pin should look very similar to this...

http://www.guess-wor...m/Tech/Xpin.htm

[minischubi]

its the same, purchased from minispares on Dec:

no Problems to this Stage....




as i tryed to torque up...locking. On both differentials




difference of teeth between original planet gears and the new Minispares planet gears...



from this diff are the output shafts

Edited by minischubi, 13 February 2011 - 12:24 PM.

[Southy]

Have you tried stripping the diff right down and using both of the old fibre washers on both of the output shaft's?
If it still doesn't turn then, try dru building it with no fibre washer's at all and see it it turns then.
If so it will be a case of sanding the fibre washers down enough so that the diff can turn.

[minischubi]

some tried today
- changed planetwheels crosswise: no effect, still locking
- build up without one fibre washer, non locking, but turns very roughly, seems like the tooths are not really matching

- build up with some old planet wheels (Diff-pins have the same diameter): it works, and runs smooth



the difference between the old planet wheels and the new one from the Cross-Pin-Diff. The teeths are very different i think.... could this be the problem?



Measured the distance between Pin and surface for the Crown wheel, both Cross pin diffs are 0,3mm (12 thou) shorter than the original diffcase.

@southy: used new and also old washers, no difference at all. Also there are the thinnest possible washers in the Kit. Didn't like the idea of sanding down the washer. I think its possible that there are then parts of abrasive grains in the washer...not so good i think. also it still runs very roughly...

Edited by minischubi, 13 February 2011 - 05:55 PM.

[the boy howard]

If i remember rightly i had this same problem, it turned out in the end there was a thin remanant of the old fibre washer that was perfectly round and looked like metal but it wasnt. Removed this and all was good.

[minischubi]

If i remember rightly i had this same problem, it turned out in the end there was a thin remanant of the old fibre washer that was perfectly round and looked like metal but it wasnt. Removed this and all was good.

on the output shaft? I'll check this..