Barrel arbor endshake adjustment between bridge and mainplate

[mikepilk]

Re-assembling a Longines 30LS, I have a problem with barrel arbor endshake.
The endshake of the arbor  in the barrel is fine, but there is no endshake of the arbor when installed between the bridge and the mainplate. 

The hole in the bridge shows signs of having been closed at some time, which may have been the cause.
But, holding a straight edge on the mainplate and bridge, they both look flat to me.  

So the question is, what is the best way to get a touch of endshake ? 
Bridge (probably) or mainplate?  And the best way to do it?

 

 

Edited January 14 by mikepilk

[nevenbekriev]

What is actually the problem? Do You feel increased resistance when winding?

[mikepilk]

The gear train does not run as freely as I would like, and the amplitude is lower than expected. I feel that just a small amount of endshake would make all the difference.  

[HectorLooi]

As @nevenbekriev says, the arbor endshake only affects how tight the winding feels.

In fact, the barrel arbor doesn't even move when the movement is running.

[nevenbekriev]

As Hector said, the arbor end shake in the plate/bridge will not affect the running of the movement. It is important that the arbor will stay upright so the barrel will be not tilted and stay on correct distance as to ensure right mesh of the barrel with the pinion of the 2nd wheel, so wear of the holes in the plate and bridge is something bad, but not because of the friction. The arbor rotates only when winding.

[Neverenoughwatches]

Same as Hector, the barrel unwinds about a static arbor. Barrel arbor only moves when the ratchet wheel turns it. 

[mikepilk]

18 minutes ago, Neverenoughwatches said:

Same as Hector, the barrel unwinds about a static arbor. Barrel arbor only moves when the ratchet wheel turns it. 

D'oh. Silly me. Yes of course it does. I was tired and I'd had some nice wine