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z thou rear disc brake pads.

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PAULJAC47
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z thou rear disc brake pads.

#1 PostAuthor: PAULJAC47 » Thu Jun 14, 2018 3:45 pm

Guyz,Changing out rear pads on z thou disc brake,new pads 9mm thick overall would not go in without bad binding on rotor,pistons are defo all the way back in level with dust seal lip,caliper is dead central to rotor which is 7.5mm thick and not warped,old pads are 7mm thick overall and 1mm from wear limit step,shims are present,any sage advice or anyone else had this?
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Re: z thou rear disc brake pads.

#2 PostAuthor: KeithZ1R » Thu Jun 14, 2018 5:05 pm

take the anti squeal shims out it worked for me
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Re: z thou rear disc brake pads.

#3 PostAuthor: z1bman » Thu Jun 14, 2018 5:40 pm

pad dimensions should be 57.6 x 52.8 x9mm

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Re: z thou rear disc brake pads.

#4 PostAuthor: PAULJAC47 » Thu Jun 14, 2018 5:50 pm

Thats what i have?
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Re: z thou rear disc brake pads.

#5 PostAuthor: z1bman » Thu Jun 14, 2018 8:37 pm

have you got enough free play in the actuator rod between the lever & master cylinder? is there too much fluid in the master cylinder ? does it free up if you slacken the wheel nut ?

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Re: z thou rear disc brake pads.

#6 PostAuthor: PAULJAC47 » Thu Jun 14, 2018 9:17 pm

Correct free play in the rod,mc at correct level,have not tried loosening spindle nut,have measured gap between pistons going back fully level with dust seal lip, to see if enough gap with 9mm pads, plus shims, plus disc thickness 7.5mm,seems 2mm too much,would need to lose shims or pads would need to be 8mm,rotor is bang in middle of caliper with equal clearance both sides,Thanks for trying to help,
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Re: z thou rear disc brake pads.

#7 PostAuthor: z1bman » Thu Jun 14, 2018 9:39 pm

are the pistons hollow or do they have a heat sink disk pressed into the piston ?

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Re: z thou rear disc brake pads.

#8 PostAuthor: PAULJAC47 » Fri Jun 15, 2018 8:57 am

They have a heat sink disc..
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Re: z thou rear disc brake pads.

#9 PostAuthor: z1bman » Fri Jun 15, 2018 11:08 am

what model z1000 is it ?

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Re: z thou rear disc brake pads.

#10 PostAuthor: PAULJAC47 » Fri Jun 15, 2018 2:57 pm

A1
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Re: z thou rear disc brake pads.

#11 PostAuthor: z1bman » Fri Jun 15, 2018 8:19 pm

the a1 uses the hollow type piston the one with the heat sink disc is only used for bikes that use sintered metal pads which are not as thick as normal pads

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Re: z thou rear disc brake pads.

#12 PostAuthor: PAULJAC47 » Sat Jun 16, 2018 9:11 am

Excellent info, that explains the conundrum,pistons were listed for A1 and A2 as are the different pads,what thickness are the sintered pads? looks like getting a set of those is the answer..Thanks for that...Paul j
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Re: z thou rear disc brake pads.

#13 PostAuthor: z1bman » Sat Jun 16, 2018 4:19 pm

57.6 x 52.8 x8mm


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