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brake thumping when braking average speed braking. Help Plz 

 

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 Post subject: brake thumping when braking average speed braking. Help Plz
Posted: Sat Nov 25, 2006 3:46 pm 
Getting Side Ways
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Age: 29

Posts: 721

Joined: 31st Dec 2005

Ride: EF V8 Futura, 180sx

Location: Brisbane, Burpengary
QLD, Australia

Hey guys

Well the problem is when i brake to stop in traffic from speed like 60km you can fell thump thump thump intill u stop

last night i though stuff it ill rip the front rotors off and get pack the bearings and retighten the hub bolt bit tighter than last time so i did.
slap the tyres back on and went for a drive and it was like a DREAM for the first 4 heavy brake test then the problem came back.

i was reading the car book and they say tighten the hub nut to 30nm then loosen and back up to 1.5nm

i tightened the hub bolts up to 30 and they were great intill the great moved and the bearing settled and loose again

what did u guys tighten you hub nuts up to?

i know if i tighten then up to 45nm area the problem will go
but the books say 1.5nm LOL

any ideas?????

ive got new bendix GCT front and rear brakes and getting my rotors machined at work monday

if u had this problem how did u guys fix it?

 

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18" koya Strykers, AU engine with port and polish EB head, crow valve springs, standard cam, Large aftermarket RX7 turbo, T5 manual 3" intercooler piping, 600x300x100 intercooler core, MSII with innovate wideband O2 sensor and guage. BA F6 bodykit

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Posted: Sat Nov 25, 2006 5:35 pm 
Smokin em up
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Sounds like warped rotors to me. Just be careful when you do the nut up cause if its to tight the bearing will collapes and that will not be good.
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Posted: Sat Nov 25, 2006 6:50 pm 
Technical Contributor
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VIC, Australia

warped!



To tighten,

For years i've nipped them up with a shifter.
Spun Rotor a few times.
Then backed off.
Then held the Shifter HORIZONTAL with the NUT and twisted the shifter to tighten.

This way you cannot crush the needles and over tighten.

Unless you've been eating s**t of spinach.

 

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Posted: Sat Nov 25, 2006 6:54 pm 
Getting Side Ways
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i think my rotors are warped...
as i put the brakes on like even gently, the steering wheel shudders, and the brake pedal pulses...
but the rotors and pad are only 2/3 months old....

 

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Posted: Sat Nov 25, 2006 7:30 pm 
Getting Side Ways
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Age: 29

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Joined: 31st Dec 2005

Ride: EF V8 Futura, 180sx

Location: Brisbane, Burpengary
QLD, Australia

Yer mind dose that as well
tell ya what every bolts comming loose in my car cause of this.

I think it f**k my diff now
from the braking and the pinion gear is smacking both side of the crow wheel and flogging it out

how i got a 4th gear rumble when i drive down the high way when diff cold but after 5 mins it goes when oil warms up.

 

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Ford EF Futura Black
18" koya Strykers, AU engine with port and polish EB head, crow valve springs, standard cam, Large aftermarket RX7 turbo, T5 manual 3" intercooler piping, 600x300x100 intercooler core, MSII with innovate wideband O2 sensor and guage. BA F6 bodykit

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Posted: Sun Nov 26, 2006 3:20 pm 
Getting Side Ways
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Ride: EB S1 3.9L Bush basher

Location: Perth
WA, Australia

Yeah, I got the same probs, goin down to Auto 1 2day cos they got 20% off rotors

 

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