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hard to move piston after caliper rebuild
- hardr0ck68
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02 Jun 2009 18:49 #295882
by hardr0ck68
1977 kz650 c1
bought it because I was told it would never run again...I like to prove people wrong.
hard to move piston after caliper rebuild was created by hardr0ck68
SO I am putting rebuild kits on my newly powder coated calipers. When I installed the piston on the new seal it did not want to slide into the bore... I had to use a c-clamp with slight force, not to hard to press it in but it certainly did not slide right in. I could not press the piston in with just my fingers.
I am wondering if there is a problem with this. The last thing I want it to have to take the rear end all apart again to fix a mistake.
What do you all think?
I am wondering if there is a problem with this. The last thing I want it to have to take the rear end all apart again to fix a mistake.
What do you all think?
1977 kz650 c1
bought it because I was told it would never run again...I like to prove people wrong.
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- timebomb33
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02 Jun 2009 18:52 #295885
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 hard to move piston after caliper rebuild
did you use brake fluid as a lube to get the piston in place? if you did it just might have hydraliced a bit not a big problem that will happen sometimes on the other hand you may have rolled one of the seals out by accident.
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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- gane
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02 Jun 2009 19:02 #295890
by gane
[img][/img] 1977 KZ1000A1
Replied by gane on topic hard to move piston after caliper rebuild
Hardrock, is piston free in bore without seal? Is seal new? is seal land clean? any evidence of powdercoat in bore? i hate to suggest it, but powdercoating is a bake on process, and heat could distort bore. luck g
[img][/img] 1977 KZ1000A1
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- hardr0ck68
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02 Jun 2009 19:16 #295896
by hardr0ck68
1977 kz650 c1
bought it because I was told it would never run again...I like to prove people wrong.
Replied by hardr0ck68 on topic hard to move piston after caliper rebuild
I really doubt the 450* used to powder coat would warp such a hefty piece of alum...
The boars are clean, I spent an hour washing every speck of grime out of the bores and grooves.
I did not use any fluid as a lube. I think this may be part of my problem, I am going to use DOT 5 but I only have DOT 3 on hand in the barn so I just went "dry".
The boars are clean, I spent an hour washing every speck of grime out of the bores and grooves.
I did not use any fluid as a lube. I think this may be part of my problem, I am going to use DOT 5 but I only have DOT 3 on hand in the barn so I just went "dry".
1977 kz650 c1
bought it because I was told it would never run again...I like to prove people wrong.
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- donthekawguy
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02 Jun 2009 23:23 #295940
by donthekawguy
Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
Replied by donthekawguy on topic hard to move piston after caliper rebuild
Did you clean out the seal groove with a dremmel? I always do and use fluid as lube.
Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125
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