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#1 Hydraulic Clutch Master Cylinder Shim
OGREInc Posted on: 2017/10/30 22:22
What purpose do the (2) half shims between the clutch master cylinder and the firewall serve? No reference in the Tech Wiki or Ye Olde Shoppe Manual. Inquiring minds want to know...thanks!
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#2 Re: Hydraulic Clutch Master Cylinder Shim
zigmondo Posted on: 2017/10/31 1:45
I would say its so the m/cyl piston comes all the way back to allow fluid back into the bore - if it doesnt your brakes eventually lockup - dont ask me how I know :)
dp
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#3 Re: Hydraulic Clutch Master Cylinder Shim
ddgonzal Posted on: 2017/10/31 3:58
Factory Service Manual discusses this. RHD shoppe manuals do not

Yes, they are adjustment shims, so the fluid doesn't back up. Unlike B210, B110 doesn't have an adjustable pushrod, so the master cylinder is moved via the shims. See Hydraulic Clucth Adjustment in our tech wiki
Quote:
Pedal stroke is 5.65 in (143.5 mm) with the adjustment stop (the switch in the diagram) backed off. Adjustment is made with shims for the cylinder on the firewall.

FSM diagram
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Adusting Shim
* 30611-27260 1.6 mm
* 30612-27260 0.8 mm
* 30613-27260 0.5 mm
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#4 Re: Hydraulic Clutch Master Cylinder Shim
OGREInc Posted on: 2017/11/4 6:36
Thanks, gentlemen. I suppose I should rummage through my Ziplock bag of shims and install an appropriate set then, eh?
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