Swinging arm shims?

[jerryz]

Put the swinging arm back on today it looks nice all freshly polished ....BUT the is a miniscule amount of side play (0.002mm) that was not there before , should i get some more shims or will it go away when the engine heats up and expands the alloy etc .
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[ducpainter]

Put the swinging arm back on today it looks nice all freshly polished ....BUT the is a miniscule amount of side play (0.002mm) that was not there before , should i get some more shims or will it go away when the engine heats up and expands the alloy etc .
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You need some play or it will bind.

I'd call it good.

[mitt]

Put the swinging arm back on today it looks nice all freshly polished ....BUT the is a miniscule amount of side play (0.002mm) that was not there before , should i get some more shims or will it go away when the engine heats up and expands the alloy etc .
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.002mm - that is almost unmeasurable.  Most feeler gauge sets only go down to .001", which is about .025mm, so if you are less than that, I would think is plenty tight.

mitt

[clubhousemotorsports]

if you can feel side play at the swingarm pivot with the rear wheel tightened you should shim it. This will translate to a handling problem in the form of a lateral shift of the rear end.
if you only commute and do not ride hard you would not notice. I re-shim the factory bikes all the time.

[Duck-Stew]

Also, for an alternative to the original Ducati shims, try going to a cylinder head shop and looking for valve spring shims.  I used some on a project bike (The Coup D'etat I think...) and it saved me mucho $$$ and time waiting for the shims from Italy...

[jerryz]

I meant .002'' not mm sorry ,, i will habve to get another shim when in UK next month .

[Howie]

Since Ducati allows .1mm (a little more than I would like) I think you are still good, since you are at about half that.

[jerryz]

I will order some shims next time i am in UK.

[gage]

I just reinstalled my swingarm and after wet sanding a shim (and my fingers) have VERY little play. Arm moves through the entire range without binding and moves very well. I have less than .1mm.

Can someone confirm that the axial play in the swingarm can be measured without the rear installed and torqued down? Manual does not indicate that the wheel should be installed but Ducvet's post has me wondering if it will be too tight after the wheel is on.

Thanks in advance

[ducpainter]

I just reinstalled my swingarm and after wet sanding a shim (and my fingers) have VERY little play. Arm moves through the entire range without binding and moves very well. I have less than .1mm.

Can someone confirm that the axial play in the swingarm can be measured without the rear installed and torqued down? Manual does not indicate that the wheel should be installed but Ducvet's post has me wondering if it will be too tight after the wheel is on.

Thanks in advance

I think he's referring to DSS bikes when he says the wheel should be installed and the axle torqued.

I also think he'd tell you .1mm is too much.

[gage]

I think he's referring to DSS bikes when he says the wheel should be installed and the axle torqued.

I also think he'd tell you .1mm is too much.

I have a DSS bike

I also already have much less than .1mm. I'll mock the wheel up and torque it down in order to check for any binding

[ducpainter]

I have a DSS bike

I also already have much less than .1mm. I'll mock the wheel up and torque it down in order to check for any binding

Why did I think you had  a SSS?

Oh right...

I'm an idiot.

[ducatiz]

Also, for an alternative to the original Ducati shims, try going to a cylinder head shop and looking for valve spring shims.  I used some on a project bike (The Coup D'etat I think...) and it saved me mucho $$$ and time waiting for the shims from Italy...

maryland metrics has shims, i used them for a head rebuild when i lsot the cam shims. 

definitely cheaper than the bolognan variety

[gage]

To sum this up.

Got the wheel on and torqued down to spec and rechecked the clearance. It has less than .050mm (.002") as that is the thinnest feeler I have in my set and it fits hard. I observed no binding and everything seemed to be moving beutifully. 

It was definately better off than the factory settings which I don't think they even met their own spec.

[mitt]

It was definately better off than the factory settings which I don't think they even met their own spec.

No, that never happens with Ducatis 


mitt