It's a 'normal' right-handed thread. The torque is handled by the yoke and
splines, the 'jesus' nut just secures the yoke to the pinion shaft.
The torque spec on the nut is 150ft-lbs, and there is probably a large split
lockwasher behind it. I don't think a typical impact wrench will do the job,
you need a large breaker bar and possibly a length of pipe on the bar for
leverage--aka a 'snipe'--and penetrating oil and heat might help. Make sure
the
car is properly secured, then get your cousin Rolf to put everything he has
into it.
Bob
Mark Schneider wrote:
> All,
>
> A day or two ago several of you were very helpful with your comments and
> answers regarding my efforts to replace the pinion oil seal in my Healey
> rearend. I have now borrowed a pneumatic impact tool to try to loosen
> the large flange nut. I am assuming the threads on the shaft are normal
> threads, that is, "lefty loosy/righty tighty". I have the flange locked
> with a metal rod and the park brake is set pretty hard. When I hit the
> nut with the impact tool all it did was make a lot of noise as it banged
> away. The nut did not budge. I recall the large nut on the first
> motion shaft in the gearbox was a left handed thread. Is that possible
> again here? I think not but I hate working against the tide.
>
> Marks 3
> 1966 NJ8
>
--
*******************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
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