GKN diff...Seals?
GKN diff...Seals?
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Discussion

hillclimbmanic

Original Poster:

694 posts

173 months

Saturday 16th April 2016
quotequote all
Just opened up my GKN diff...Do I need to remove the insides, to renew the pinion seal? I can't tell, until the seal arrives!

If so, does anyone know the torque settings for the end-cap bolts, that hold the drive shaft couplings in place?

Sardonicus

19,440 posts

250 months

Saturday 16th April 2016
quotequote all
No, but you need to index the front flange nut against the pinion thread inc turns then when you fit the new seal and flange you removed previously over tighten said indexed nut 10/15 degrees approx thus making sure you pinch the assembly together inc the collapsible spacer and bearings without upsetting the bearings pre-load, if you dont and just set it back to where you removed the nut you will suffer trouble frown

hillclimbmanic

Original Poster:

694 posts

173 months

Saturday 16th April 2016
quotequote all
Sardonicus said:
No, but you need to index the front flange nut against the pinion thread inc turns then when you fit the new seal and flange you removed previously over tighten said indexed nut 10/15 degrees approx thus making sure you pinch the assembly together inc the collapsible spacer and bearings without upsetting the bearings pre-load, if you dont and just set it back to where you removed the nut you will suffer trouble frown
D-O-H... banghead

I've already undone the nut, removed washer and flange...

Now what????

rigga

8,805 posts

230 months

Saturday 16th April 2016
quotequote all
Now you buy some engineer's blue



And set the preload as dictated by the markings on the the teeth once Said blue has been applied and the pinion and crownwheel rotated

hillclimbmanic

Original Poster:

694 posts

173 months

Sunday 17th April 2016
quotequote all
rigga said:
Now you buy some engineer's blue



And set the preload as dictated by the markings on the the teeth once Said blue has been applied and the pinion and crownwheel rotated
Thanks, Rigga...
I'm thinking that I should change the output seals, whilst it's open - I'm not familiar with this diff, being a motorcycle guy...Do I undo the end-cap lookin' bolts, to remove the output flanges? If so, are there torque settings, etc.,?

Sorry for being an 'erbet.!!

Manic