Author Topic: second ride  (Read 1641 times)

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Offline hymodyne

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second ride
« on: August 13, 2005, 06:01:56 PM »
At the moment I left my driveway, my front brake began to squeal. I've got new pads in the caliper and rebuilt the master cylinder. when I loosen the two bolts that hold the caliper, the disc frees up enough to spin freely, but I know that the bolts are supposed to be tight.

should I plane down the stationary pad, or what?

any suggestions would help,

hym
"All things are ready if our minds be so."

Offline Dennis

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Re: second ride
« Reply #1 on: August 13, 2005, 06:26:04 PM »
Quote
should I plane down the stationary pad, or what?

I don't think so, but,
you are not giving us enough information to help you.
Did it drag before you left the driveway?
What kind of pads did you use?
Did it do this before you changed the pads?
I notice that this is "second" ride, when did you change the pads? Before the first ride or before the second ride?
What happens if you open (then close) the bleeder valve on the caliper to relieve the pressure in the system?
Did you meticulously clean the master cylinder and double check that the return port is clear?
Make that triple check the return port!!

More information please, so that we can help!


Offline chrometank

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Re: second ride
« Reply #2 on: August 13, 2005, 06:32:53 PM »
mate,you need some feeler gauges.one side of the caliper is fixed and adjusted by a single screw with spring.I cant remember the axact mesurment between disk n pad but 0.06 sounds right.you can loosen the two bolts and hold the inner caliper against bracket then adjust.once you get it right do up the bolts
« Last Edit: August 13, 2005, 06:35:02 PM by chrometank »

Offline TwoTired

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Re: second ride
« Reply #3 on: August 13, 2005, 07:28:47 PM »
mate,you need some feeler gauges.one side of the caliper is fixed and adjusted by a single screw with spring.I cant remember the axact mesurment between disk n pad but 0.06 sounds right.you can loosen the two bolts and hold the inner caliper against bracket then adjust.once you get it right do up the bolts

Need one more zero.  The stationary pad clearance is .006 in.

Cheers,
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline kghost

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Re: second ride
« Reply #4 on: August 13, 2005, 09:28:32 PM »
Did it lock up and not release?


If its just squeeking, they all do that some.

You can chamfer the edges of the pucks to stop most squeaks.

Baring that you can saw a groove across the pad or drill the rotor.

If its locking up see above.

Stranger in a strange land

cd811

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Re: second ride
« Reply #5 on: August 14, 2005, 01:35:25 PM »
it really sounds like a hydraulic problem
sticky or dirty m/c or caliper
caution!
something sounds dangerous!!!! :o

Offline hymodyne

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Re: second ride
« Reply #6 on: August 14, 2005, 03:17:31 PM »
I shaved down the stationary pad about .7mm and voila! I can spin front wheel, the caliper bolts can be torqued to specs and I can  set the .006 space between stationary pad and rotor.

squeak is all but eliminated,

hym
"All things are ready if our minds be so."

Offline Dennis

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Re: second ride
« Reply #7 on: August 14, 2005, 08:47:58 PM »
Seems unusual. Were they tight in the caliper from the time that you installed them?
If so, what kind of pad is being made so thick? Just so the rest of us know.