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pulsing brake peddle-sierra

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shep

Joined: Thu Mar 29, 2007 11:30 pm
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Vehicle: A manly awesome man jimny

Posted: Fri Jul 22, 2011 7:21 am

for a few months now my brake peddle has pulsed when stopping.
wheel bearings appear fine with little to no movement and the calipers and
backing plates appear to have no movement

any ideas? appears worse after driving fastish but that may just be cos i am going faster. :roll:

i think it started after i replaced the rear diff center and axle seals but i cant be sure that that is when it did start.

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Bruce

az supporter

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 4003
Location: Brisbane

Posted: Fri Jul 22, 2011 7:23 am

Hot spot on the discs?

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[quote="royce"] I wouldnt mind insulating my rear

bakerboy

Joined: Sun Oct 25, 2009 10:30 pm
Posts: 2291
Location: Perth

Posted: Fri Jul 22, 2011 7:24 am

foot massages?

id say warped rotors, mine are doing that now

shep

Joined: Thu Mar 29, 2007 11:30 pm
Posts: 14498
Location: Here there everywhere
Vehicle: A manly awesome man jimny

Posted: Fri Jul 22, 2011 7:26 am

Bruce wrote:

Hot spot on the discs?

i wouldn't have thought so as i haven't been over 40kph for at least 12months.

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royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Fri Jul 22, 2011 7:29 am

one of your drums isn't on totally square

laurie

az supporter

Joined: Fri Oct 31, 2008 10:30 pm
Posts: 1540
Location: Blackbutt
Vehicle: LJ80

Posted: Fri Jul 22, 2011 7:32 am

last time i had this problem i fixed it with new pads
they were not wearing square.
if yours are not wearing well i would suggest filing/sanding on concrete ect

Last edited by laurie on Fri Jul 22, 2011 7:34 am, edited 1 time in total.

shep

Joined: Thu Mar 29, 2007 11:30 pm
Posts: 14498
Location: Here there everywhere
Vehicle: A manly awesome man jimny

Posted: Fri Jul 22, 2011 7:33 am

royce wrote:

one of your drums isn't on totally square

belt with hammer? or just rattle gun the 4 nuts as tight as they go?

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Jasen

Joined: Wed Apr 21, 2010 11:30 pm
Posts: 86
Location: Toowoomba

Posted: Fri Jul 22, 2011 7:38 am

Hey Shep, have ya had ur wheels off lately? I'm thinkin like Royce said. Check ur discs and drums and wire brush their mounting faces.

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Fri Jul 22, 2011 8:02 am

shep wrote:

royce wrote:

one of your drums isn't on totally square

belt with hammer? or just rattle gun the 4 nuts as tight as they go?

might work, otherwise pull the drums off, give the mating faces a clean and stick em back on, only needs a little bit of shit on there

CompTruck

Joined: Mon Sep 21, 2009 11:30 pm
Posts: 299
Location: brisbane northside

Posted: Fri Jul 22, 2011 9:31 am

i had a dt175 motorbike that did this with the front drum brake. could feel the lever going in and out. lol dunno what it was but

hutch

az supporter

Joined: Sun Nov 30, 2008 10:30 pm
Posts: 1213
Location: SW Bris

Posted: Fri Jul 22, 2011 9:32 pm

Hot spots can also occur when you drive into water and put your foot on the brakes when they are hot.

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Bruce

az supporter

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 4003
Location: Brisbane

Posted: Sat Jul 23, 2011 11:05 pm

So you fixed this yet Shep? :-)

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[quote="royce"] I wouldnt mind insulating my rear

shep

Joined: Thu Mar 29, 2007 11:30 pm
Posts: 14498
Location: Here there everywhere
Vehicle: A manly awesome man jimny

Posted: Sat Jul 23, 2011 11:34 pm

i reckon royce is on the money. have cleaned up one side and it is a little better
however the four studs are quite loose in there holes so i dont think it will ever be
properly fixed. the car just needs to hold together for about 1000km and then i
can fix everything properly.

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royce

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Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Sun Jul 24, 2011 5:28 am

I found on mine sometimes pulling the drum off and rotating it 90 degrees and back on would fix it

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