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Location:
Epping, Sydney
Registered:
April 2003
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Brake pedal goes spongey after hard corner for first push
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Sun, 07 November 2004 22:22
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any ideas?
if the rotors were shifting, pushing the piston back in... hmmm
I loosish hub nut?
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Location:
tallahassee FL usOFa
Registered:
May 2002
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Location:
South Australia
Registered:
July 2002
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 00:02
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I think I'll put money on needing the calipers reco'd... 
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 00:41
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Stephen, it wasn't doing it before I went a replaced my bearing that's all.. and the seals look pretty good on these brakes
but I think I did everything up to spec.
if feels exactly like the piston is getting pushed back, and then i have to push it back into place and it is fine till I go arond another corner.. the harder I corner, the further I have to push my pedal to restore nomal feel lol
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Location:
South Australia
Registered:
July 2002
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 00:58
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Hrm - I'd be checking the work again if that's the case. It could either be the caliper needs help or something is loose back there!
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 01:01
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yeah calipers have been champion for ages so I guess time to take the wheel off and take a quick look again
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Location:
Sydney
Registered:
February 2003
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Location:
Canberra
Registered:
May 2002
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 01:58
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Hi Rob, check your wheel bearings buddy. The caliper is bolted to the strut, under lateral loads, a loose wheel bearing will allow the disc to tilt in relation to the caliper. This would effectively push back your piston.
regards Chuck.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 02:01
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hey Chuck thanks dude
I have only very recently had the bearing replaced (ie, this is why I had it all off onn Saturday, and noticed the problem yesterday)
got the job done at a workshop and put it all back together myself
perhaps the hub-nut isn't tight enough? but i did it up really tight, and have taken hubs on and off plenty before and never had a problem.. 
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Location:
c'town, NSW
Registered:
May 2002
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 02:12
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| RobST162 wrote on Mon, 08 November 2004 13:01 |
perhaps the hub-nut isn't tight enough? but i did it up really tight, and have taken hubs on and off plenty before and never had a problem..
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this doesnt sound right at all... wouldnt doing it up tight collapse the bearing?
or are we talking about different things
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 02:16
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the books says it has to be around 137 ft/lb on the nut
that's pretty tight... you know you gotta take 'em off with a big breaker and stuff..
the only thing that holds the driveshaft onto the hub/bearing is this nut
if it was loose I could imagine movement in there.. but I just inspected all the components.. they seem pretty tight
I will check my hub-nut again
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Location:
c'town, NSW
Registered:
May 2002
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 02:34
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ahh k, yeah stick with the books specifications.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Brake pedal goes spongey after hard corner for first push
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Mon, 08 November 2004 02:37
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thanks rob kinda wierding me out
sick of continual dramas over the last three weeks when i have had 3 years of awesome reliablility.. oh well, once they are sorted she'll be sweet as again
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it's called "knock back", but doesn't happen much on type calipers that aren't fixed mount & opposing piston. what are yours???
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the pads are in a fixed mount with the pistons operating off a hinge at the top whic slide down over the pads.. usual deal
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