‘79 75 hp pinion gear removal

[Rupesy]

Can someone tell me which way to loosen the nut? CCW or CW? Also, I don’t have any special tools to hold the shaft from the spline, any suggestions? I do have an impact wrench. When I put it back on, what torque should I use?

 

[Nordin]

Put the drive shaft in a wise and wrap it with a cloth and secure it.
If you have protective jaws for the wise use them too.
Loose the nut CCW, the factory calls for a new nut when installing but I use lock liquied such as Loctite and reuse the nut.
Torque to 85 ftlb.

 

[jerryjerry05]

I think Nordin means VICE

Lefty loose 'y righty tighty.

 

[Nordin]

Thank you jerry, my bad in English language.
I mean a vice not wise, sorry sorry.

 

[legalfee]

Vise?

 

[Redbarron%%]

It is a German vise or is it vice?

 

[legalfee]

Vise is a device that clamps onto something. Vice is something bad like a bad habit.

 

[Rupesy]

I put some aluminum over my vice. I was surprised it barely took any effort to remove the nut. BTW, my engine is 757H9E. Was it 85 inch pounds or 85 ftlbs? It looks like it is a locking style nut (plastic at the end). I decided to try to tighten the existing gear set and bearing, but even just tightening hard without measuring torque it binds the bearing. Also there are no shims behind the bearing and I don;t see on the parts diagram that it calls for one. The nut is pressing on the gear and the gear does not go all the way over the spline, so torquing to 85 will lock up the bearing. Any comments?.

 

[The Force power]

advice OR advise?

is the bearing/gear on far enough? should not bind

85 foot lbs, don't forget the locktite!!

 

[Rupesy]

I snapped a photo of the end of the driveshaft. You can see that there is a gap between the end of the driveshaft and surface of the gear where the nut goes. This is why I can't apply the full 85 ft-lbs. I measured the difference to be 0.125". Does this mean the bearing on the upper end of the driveshaft is not positioned correctly? Do I need to pull the driveshaft and move the upper bearing 0.125" or at least until bearings have no play and I can apply the 85 ft-lbs?

 

[Rupesy]

OK, I have finally found a service manual and it looks like in this case the nut only gets tightened so the bearing move freely. I attached the section from the manual.