900ss 1e 2000 Model Alternator Nut Removal

It might be loose - give it a try

 

Jam a copper coin in the gears. Done this a few times. Use a breaker bar. Easy

 

Where about's in London are you and how soon you need to do this?

 

I've got one of these:
https://www.machinemart.co.uk/p/cla...MInJ2Vz5PY2QIVaL7tCh3IAAF0EAQYASABEgJoqPD_BwE

If it's no rush I could bring it over one Sunday morning and you could whip it off and I'll then shoot over to the Ace. Won't be soon though, maybe 29th April as there's normally a meet there on the last Sunday of each month. Very weather dependent for me.

 

Creamy, petesmeet is on 4th Sunday, which is 22nd, but I think he might be moving it nx month as 29th April is Italian Day.

 

Simon,
I have not got any experience on the electronic ignition models but the torque figure you mention seems a bit high - appologies for sticking my nose in.
The carby models are (Haynes):
SS/SL1991-93 - 177-186Nm
SS/SL 1994 - on - 180-190Nm
I wouldn't have thought it needed an impact gun I can't remember it being that hard to get off but if 300Nm is the figure then maybe.

Cheers Gaz

 

Me too and it whizzed of the nut easily on my old 1198 with alternator holding tool. I also use it for rear wheel. useful product.

 

you don't even need to use the holding tool anymore as twisting torque is almost instant - try it next time.

 

1198 is gone now I hope pani's sprag holds out so i dont get the chance (if its a similar system)

 

According to the workshop manual for the 2001 900SSie the alternator nut should be torqued to 186Nm. The manuals for the 1000SS and the MTS1000, both with the 1000DS motor says 190 Nm but the ST4s manual specifies 270N which is a hell of a lot more. Yet all of them use the same 3-phase alternator and stator. The ST4s has a different crank but I'm not sure that that would have any bearing on it.
Anyway I have 3 Ducati manuals that all recommend 186-190Nm for this bike.
I'd recommend the Laser flywheel holding tool for this job. I think there are some cheaper ones available if you do a web search.

 

You might get away with that, but it’s bad advice, you're putting a huge load on items that weren’t designed to take it.

 

As the Shazaam article says there have been a few changes to the crankshaft nuts.
This part is relevant;
"On engines with a solid countershaft drive gear (the gear behind the flywheel assy,) Ducati now recommends torquing the nut to 270Nm. On SP/SPS and other models where the countershaft drive gear is grooved where it sits on the crankshaft, you can only torque to 190Nm, to avoid damaging the gear."
And explains the difference between the ST4s and 900SSie / 1000DS models. Torque yours to 190Nm.

 

Yes, quite right. Usually last (4th) Sunday but 5th Sunday this April.