4 pin diif
Turbo Mini Forums

after completion and torquing down final drive
should the diff spin freely by hand or is it stiff to the point that
you really have to hold it and turn shafts
will it loosen up after it has a couple of miles on it?

should spin freely

Team Racing

spins freely before torquing after final torquing it tightens up

think something is a miss there, it should still spin.

Team Racing

seems to be a few people having this problem for some reason, but im afraid i have never come across it myself, so could be just finger trouble.

when done up to torque settings you should be able to just push and pull slightly the output shafts if not then there is your problem or could be crap planet gears which have been suplied.

but ive just done a minispares one with no probs in that department , mind you have a bloody horendous job get it to bits to start with.

always looking for them bigger bunches of bannanas

I had the exact same problem with the one i put in mine, i found it was the 2 new fibre like washers that go under the spider gears...when i took them out and inserted old ones from the original diff it would spin freely....so i knew then i was not a problem with the new gears but only the washers.
I just reassembled with the new washers even though the gears wouldnt turn and put it in my car anyway.
It has been perfectly fine, if anything its alittle like having an lsd diff because i can spin both wheels if i drop the clutch...especially in wet....it doesnt affect your steering.
The only one thing i did find was that for the first week of driving it didnt like reverse much....it seemed to require a few more revs to go backwards...but that has gone away now.
It may have also been due to the new gearbox gears and Crown wheel/pinion that also put in.

It will be ok.
As the washers bed in the gears will eventually turn

Jeremy

Edited by j_d_jag_mini on 1st Apr, 2006.

1975 MkIII Morris Mini 1300 Turbo, 100bhp...if only it could run long enough to drive it legally!

Same problem as me then.

I still think that the problem is that the planets are wrong and you have to compensate by using thinner washers.

As you seem to have confirmed my hopes that it will bed in with use, I will risk using it as it is.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=8435

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

all sorted
yep thats what i did i just put back the old fiber washers they were thinner then the new ones