G'day all
I was checking the front sprocket today and I noticed some end play in the shaft.Could somebody tell me how much end play,if any, is allowable please.
Output shaft end play
- higgy
- paso grand pooh-bah
- Posts: 3378
- Joined: Tue Jul 29, 2008 9:50 pm
- model: 907 I.E.
- year: 1992
- Location: Hilltown,Pennsylvania
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Re: Output shaft end play
I believe it should be 0 to .2mm for both of the gearbox shafts
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
Electrocuted Birds Are Bursting Into Flames and Starting Wildfires
88 750
90 906
92 907ie
There's no problem so bad that a little fixing can't make it worse! : )
Electrocuted Birds Are Bursting Into Flames and Starting Wildfires

88 750
90 906
92 907ie
Re: Output shaft end play
Thanks Higgy
Hmmm,I have 1.2mm.Any thoughts on a cause or remedy.All my thoughts end up with me pulling the motor out and splitting the cases,yikes.
Hmmm,I have 1.2mm.Any thoughts on a cause or remedy.All my thoughts end up with me pulling the motor out and splitting the cases,yikes.

Re: Output shaft end play
When you say end play, do you mean the amount of play with the bike in gear, on the centre stand and you rotate the rear wheel forward and backward to observe the freeplay? Because that worries me on my 906.
Brake late & brake hard,
jomo
Paso 906 Blue
Ducati Scrambler 350 1968
Bultaco Metralla GT250
Bultaco Frontera 250 Mk.9
jomo
Paso 906 Blue
Ducati Scrambler 350 1968
Bultaco Metralla GT250
Bultaco Frontera 250 Mk.9
- higgy
- paso grand pooh-bah
- Posts: 3378
- Joined: Tue Jul 29, 2008 9:50 pm
- model: 907 I.E.
- year: 1992
- Location: Hilltown,Pennsylvania
- Contact:
Re: Output shaft end play
the movement of the shaft in and out of the case, I would not be concerned about your most likely gear backlash...There probably is a spec for it but I have no idea what it would be
Measured at the tire it would be several iinches.........at the gears themselves several tenths of an inch
Duc906
Does the bike shift OK? Is the up and down motion(run out) of the shaft nice and tight? How many miles? I plan to be doing some work to my 906 this weekend, so I'll see what I have and get back to you, The spec I suppose could be a misprint...........I also have an engine apart and I'll look it over to see what might be done to remedy the situation

Measured at the tire it would be several iinches.........at the gears themselves several tenths of an inch
Duc906
Does the bike shift OK? Is the up and down motion(run out) of the shaft nice and tight? How many miles? I plan to be doing some work to my 906 this weekend, so I'll see what I have and get back to you, The spec I suppose could be a misprint...........I also have an engine apart and I'll look it over to see what might be done to remedy the situation
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
Electrocuted Birds Are Bursting Into Flames and Starting Wildfires
88 750
90 906
92 907ie
There's no problem so bad that a little fixing can't make it worse! : )
Electrocuted Birds Are Bursting Into Flames and Starting Wildfires

88 750
90 906
92 907ie
Re: Output shaft end play
Correctthe movement of the shaft in and out of the case,
The gear shifts are ok,there is a grinding noise coming from the clutch when it is engaged but I'm sure that is the slave cylinder bearing.I've had to replace it twice in the last twenty years.I cannot here any other bearing type noises coming from the gearbox.The shaft has no side movement,vertically or horizontally.The bike has done 42,600km/27,100miles.Does the bike shift OK? Is the up and down motion(run out) of the shaft nice and tight? How many miles?
Re: Output shaft end play
This has finally got the better of me,so I stripped the engine down this week to find out what is wrong.

Turns out there is a shim washer missing from between the shoulder on the shaft and the bearing,"A".
That was allowing the 2nd gear to rub on the bearing retainer,"B",fortunately it has not warn it greatly.
According to the 906 parts catalogue the part number is 067016171.Does anybody know weather these are
still available,if not,has someone got a spare they don't need.

Turns out there is a shim washer missing from between the shoulder on the shaft and the bearing,"A".
That was allowing the 2nd gear to rub on the bearing retainer,"B",fortunately it has not warn it greatly.
According to the 906 parts catalogue the part number is 067016171.Does anybody know weather these are
still available,if not,has someone got a spare they don't need.