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BobZ(IL)
Rider in the Sky
Joined: 20 May 2007
Posts: 651
Location: Bourbonnais, IL
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 Posted: Fri Nov 28, 2008 3:00 pm Post subject: Front Caliper Rebuild |
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Soon will be replacing front caliper piston seals. Anybody come up with a workable substitute for BMW piston speader tool?
As usual, many thanks for suggestions.
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'93 K1100LT
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10102
Location: Bumf***, WA
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| Posted: Fri Nov 28, 2008 4:00 pm Post subject: |
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An inch or wider chisel. Stick it in between the pads and slowly pry the pads apart. If you push them apart too quickly it can force fluid past the seals out of the master cylinder. DAMHIK. 
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Scott_Anderson
Site Admin
Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA
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| Posted: Fri Nov 28, 2008 4:19 pm Post subject: |
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What has worked for me was using 2 pieces of wood shim stock. insert from opposite sides and slowly, carefully drive them together to spread the pads.
This method also works well to keep the pads spread when removing the caliper for tire/fork repairs.
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Mystic Red
Flying Brick Rider
Joined: 28 Mar 2005
Posts: 2330
Location: Twin Lakes Idaho
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| Posted: Fri Nov 28, 2008 6:07 pm Post subject: |
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| Quote: | | What has worked for me was using 2 pieces of wood shim stock. insert from opposite sides and slowly, carefully drive them together to spread the pads. |
+1
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Scott Hespelt, '94 K11LT
K11 OG #466 |
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BobZ(IL)
Rider in the Sky
Joined: 20 May 2007
Posts: 651
Location: Bourbonnais, IL
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| Posted: Fri Nov 28, 2008 9:14 pm Post subject: |
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Thanks for the quick responses. Sounds like I will be able to sllde pistons and new seals in far enough by hand to hang on the brake pads and push it all in place by separating the pads. 
And I do remove the pistons by blowing compressed into brake line openings, right?
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997
Live well, do good work, enjoy the ride. |
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Mystic Red
Flying Brick Rider
Joined: 28 Mar 2005
Posts: 2330
Location: Twin Lakes Idaho
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| Posted: Fri Nov 28, 2008 10:10 pm Post subject: |
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Yes, and aim them in a safe direction! 
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Scott Hespelt, '94 K11LT
K11 OG #466 |
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