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caliper cleaning putting piston back in
- morhaven
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18 Feb 2010 05:30 #348928
by morhaven
caliper cleaning putting piston back in was created by morhaven
Hi guys, I picked up a 82 kz1100 spectre last month.
Front brake caliper was seized. So I tackled it last night.
Drained the bad fluid out, took it off the bike.
Popped the piston out with Compressed air.
The seals are in great shape and so is the piston. i cleaned all the bad brake fuild inside .
My problem is I can't seem to be able to push the piston back in..whats is trick for this?
I did not take the seals off as they are in great shape and clean.
Front brake caliper was seized. So I tackled it last night.
Drained the bad fluid out, took it off the bike.
Popped the piston out with Compressed air.
The seals are in great shape and so is the piston. i cleaned all the bad brake fuild inside .
My problem is I can't seem to be able to push the piston back in..whats is trick for this?
I did not take the seals off as they are in great shape and clean.
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- rstnick
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18 Feb 2010 06:26 - 18 Feb 2010 06:27 #348945
by rstnick
Rob
CANADA
Need a key for your Kawasaki? PM me
1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
Replied by rstnick on topic caliper cleaning putting piston back in
A bit of brake fluid could help. Put a bit all around and on the seal.
I'd be thinking of replacing the seal. It's probably some years old. May look fine, but a new one is cheap and will last longer.
Replace the dust seal too.
I'd be thinking of replacing the seal. It's probably some years old. May look fine, but a new one is cheap and will last longer.
Replace the dust seal too.
Rob
CANADA
Need a key for your Kawasaki? PM me
1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
Last edit: 18 Feb 2010 06:27 by rstnick.
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- Patton
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- KZr Legend
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18 Feb 2010 07:34 - 18 Feb 2010 07:34 #348966
by Patton
1973 Z1
KZ900 LTD
Replied by Patton on topic caliper cleaning putting piston back in
1973 Z1
KZ900 LTD
Last edit: 18 Feb 2010 07:34 by Patton.
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- jimstan
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18 Feb 2010 18:18 #349088
by jimstan
Replied by jimstan on topic caliper cleaning putting piston back in
Try using a small block of wood and a C clamp, they can be very very tight.
Good luck
Jim
Good luck
Jim
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- 650ed
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18 Feb 2010 18:30 #349090
by 650ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Replied by 650ed on topic caliper cleaning putting piston back in
Is the bleeder open or removed so the air can get out from behind the piston? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- donthekawguy
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19 Feb 2010 03:47 #349134
by donthekawguy
Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
Replied by donthekawguy on topic caliper cleaning putting piston back in
You have to take the seal out and clean the groove with a wire wheel on a dremmel. I have never seen one that didn't have a lot of corosion in the groove. When thats done use a bit of fluid on the seal and the piston will go right in.
Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
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- testarossa
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- Attack life, it's only trying to kill you.
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19 Feb 2010 04:41 #349137
by testarossa
1978 KZ1000 A2 Click--->Build Thread
2004 ZX-10R
2007 Harley Sportster 1200
2020 Harley Street Glide Special
Angola, IN
Replied by testarossa on topic caliper cleaning putting piston back in
donthekawguy wrote:
+1 That crud under the seal is what makes the caliper get sticky. You'll never see it unless you remove the seal.
You have to take the seal out and clean the groove with a wire wheel on a dremmel. I have never seen one that didn't have a lot of corosion in the groove. When thats done use a bit of fluid on the seal and the piston will go right in.
+1 That crud under the seal is what makes the caliper get sticky. You'll never see it unless you remove the seal.
1978 KZ1000 A2 Click--->Build Thread
2004 ZX-10R
2007 Harley Sportster 1200
2020 Harley Street Glide Special
Angola, IN
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- timebomb33
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19 Feb 2010 08:49 #349161
by timebomb33
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
Replied by timebomb33 on topic caliper cleaning putting piston back in
brake fluid will cyrstyalize over time due to evaporation it will get in behind the seals andforce them out a bit which causes the sticking problem in the first place remove the two piston seals and clean out the reciever grooves very well and also clean up the seals if they are pitted replace them then when you are reinstalling them lube them up good with the same brake fluid you are using in the brake system, dont use any other kind of lube and the pistons should slide in easily.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
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