Amazon: Pinion nut torque Diff rebuild

[Clan]

Originally Posted by Salop Farmer

While on the subject of differentials does anyone have an idea of the correct pinion rotational backlash of these two types used on the 544/early Amazon. I have the green Volvo manual on differentials but I cannot see any reference to this backlash measurement. My diff. backlash measured at the circumference on the pinion seems excessive at 8 to 10 mm. This is the amount I can turn the prop back and too by hand from under the car. Thanks.

Its in the range 0.006" at the gear teeth ( + or - 0.002" )

[Salop Farmer]

Clan can you elaborate please. I haven’t stripped my diff. I just noticed on prop attachment that I could rotate shaft back and to by around 8 - 10 mm. Do you think this is ok?

[Clan]

Originally Posted by Salop Farmer

Clan can you elaborate please. I haven’t stripped my diff. I just noticed on prop attachment that I could rotate shaft back and to by around 8 - 10 mm. Do you think this is ok?

That's a lot you need to take the cover off and see where the play is , It is probably in the planet gear wheels in the centre of the differential.. when you have the cover off check the actual play between the crown wheel and pinion gear teeth, it should be JUST noticeable. ( 0.006 inch )