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MG Midget and Sprite Technical - pinion shaft nut size
|dear all easy one i am sure, what is the nut size for the pinion shaft, i am repaling the oil seal on a my 1500.|
i have read the manual on process but any handy hint wold be welcome
|I cant remember the size...but its a beast to remove|
Get ither an electric or air powered inpact gun...or it will make you an old man in under a 1/2 hour
|Prop and the Blackhole Midget|
|Just measured it on my spare diff, 28.65mm A/f, so 29mm socket or whatever the equivalent in imperial is..|
you need a big long tube to put over your breaker bar.....
have you seen Norms guide ?
|Andy Phillips (frankenfrog)|
|Yep, 1-1/8" in real numbers|
|Yeah, darn it, I didn't bother to write down what that nut size was. I remember thinking to myself while I took those pictures, "and write down the nut size because others will want to know it".|
And then I forgot.
OK, 1 1/8" I will make a note of it. Thanks Paul!
|Douglas: as Andy intimates, it isn't a straightforward job as you will have to reset the preloading of the bearings. Preload is indicated as a "tightness" in turning the pinion shaft and there is a need to tighten the nut until a specific turning torque on the shaft is created. This is torque to turn the shaft, not tightening torque on the nut. This will need to be measured with a suitable torque wrench or a makeshift weight on a short lever arm. If you do it according to the book you will need to replace the collapsible spacer between the bearings. |
And don't push the seal fully home. Keep it flush with the outer face otherwise the seal lips move off the parallel section onto the taper.
Norm's guide is a good read. Just undoing the nut, whacking in another seal it ain't!
This thread was discussed between 21/06/2014 and 22/06/2014
This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.