Quick question about brakes!

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15 Oct 2011 17:09 #483361 by badrhino
Quick question about brakes! was created by badrhino
Should you put thread locker on the disc brake bolts when remounting?

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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15 Oct 2011 17:24 #483364 by THEHUN
Replied by THEHUN on topic Quick question about brakes!
it is always a good idea to use thread lock specially on bolts holding moving parts or subjected to extreme vibration

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15 Oct 2011 17:44 #483367 by MFolks
Replied by MFolks on topic Quick question about brakes!
I'd say use the Blue Loctite # 242 as it's removable with tools, the Red Loctites need about 300 F to loosen their grip, far to hot for brake pieces.

1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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15 Oct 2011 19:19 #483382 by 650ed
Replied by 650ed on topic Quick question about brakes!
Which bolts? The bolts that hold the rotors on should have locking washers with tabs that bend against the bolt heads. I cannot speak to your model, but the KZ650 service manual does not call for locking agent for the mounting bolts or holder shafts. It does give specific torque values for each type of bolt, so whether you decide to add locking agent or not be sure to torque correctly. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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15 Oct 2011 22:24 - 15 Oct 2011 22:25 #483420 by badrhino
Replied by badrhino on topic Quick question about brakes!
I am restoring this bike so I don't know what all was wrong with it before.

Mine does not have locking tabs....either because it never did or someone took them off.

Also, while I have the calipers off I decided to take them apart. On one caliper the rubber shield/seals for the sliders are in pretty bad shape. Should I just rebuild the brakes completely (rubber shields/piston seals) since they are torn down? One brake looked pretty cruddy so it might have been leaking around the piston.

Where is a good place to get these parts?

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!
Last edit: 15 Oct 2011 22:25 by badrhino.

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15 Oct 2011 22:42 - 15 Oct 2011 22:42 #483424 by 650ed
Replied by 650ed on topic Quick question about brakes!
Below is a drawing that shows the lock washer w/tabs. I don't know if your exact model uses them, but I know that most KZ models do. I would rebuild the calipers since you already have them apart. Z1E should have the kits and the lockwashers. If they don't have the kits, try

www.cyclebrakes.com/

Attachment LockWasher.jpg not found


1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Last edit: 15 Oct 2011 22:42 by 650ed.

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15 Oct 2011 22:59 #483428 by TeK9iNe
Replied by TeK9iNe on topic Quick question about brakes!
As previously mentioned, all bolts require a very specific torque, and many lock-tite.
If you are not using a torque wrench, you should buy some really good gear.
The proper torques range from lightly tightened to very tight, and cannot be simply guessed.

If you are using a proper torque wrench, then disregard this warning... :lol:

Peace.

B)

Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors ;)

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15 Oct 2011 23:09 #483430 by badrhino
Replied by badrhino on topic Quick question about brakes!
Thanks, and yes I am using a torque wrench. :P

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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16 Oct 2011 09:19 - 18 Feb 2013 17:48 #483483 by martin_csr
Replied by martin_csr on topic -
.
Last edit: 18 Feb 2013 17:48 by martin_csr.

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16 Oct 2011 12:45 #483523 by badrhino
Replied by badrhino on topic Quick question about brakes!
I have the pdf manual for the J model bike but I don't have one for the 1980 KZ1000, are the brake rotor bolts torque specs. about the same? The ones for the J model say torque to 16.5 ft. lbs.

The only reason I have the J model manual is because my bike has the J motor in it.

1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!

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16 Oct 2011 16:16 #483545 by 650ed
Replied by 650ed on topic Quick question about brakes!

badrhino wrote: I have the pdf manual for the J model bike but I don't have one for the 1980 KZ1000, are the brake rotor bolts torque specs. about the same? The ones for the J model say torque to 16.5 ft. lbs.

The only reason I have the J model manual is because my bike has the J motor in it.



Interesting and a very good question to ask because the KZ650 disk mounting bolts call for 25-33 ft lbs. Hopefully someone has a manual for your exact model. Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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