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Brake Question Need Some Parts -> - 8/26/2008 8:16:41 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

Hello All I Just Got A 1994 Honda CBR 1000F. The Person Before Me Had The Rotor Get Hot From A Stuck Brake. So Now It Has New Seals In The Caliper, 2 New Rear Brake Lines, New Pads, The Bike After You Bleed The Brakes There Fine Until You Hit The Brakes And They Wanna Stick The Rear That Is.. Is This The Warped Rotor? If So Does Anyone Have A Nice One For Sale Let Me Know And Glad To Be A Member Here... Thanks Zach

Post #: 1

RE: Brake Question Need Some Parts -> - 8/26/2008 8:23:14 PM

tallenuf

Posts: 224
Joined: 7/2/2008
From: San Jose, CA.
Status: offline

Warped rotors normally cause pulsation of the lever (front) or pedal (rear) when you apply the brake. Calipers sticking is a problem with the piston/seal in the caliper that doesn''t allow the piston to retract into the caliper bore after releasing the brake.

_____________________________

My motorized toy list (still under construction):
1993 CBR1000F
2005 DRZ400E
1997 Trans Am WS6 convertible (only 21k miles!)

(in reply to Zach)

Post #: 2

RE: Brake Question Need Some Parts -> - 8/26/2008 8:45:13 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

So This Is The Rear Caliper Problem? What Needs Done If That The Problem. Already Has Been Cleaned And New Seals In It.

(in reply to tallenuf)

Post #: 3

RE: Brake Question Need Some Parts -> - 8/26/2008 8:47:40 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

This Is A Linked Brake Sysytem, And When The Front Brakes Are Hit Back Brakes Also Does The Same It Makes The Rear Caliper Stick And Slows The Bike Down And Makes The Rear Rotor Smoke. Bleed The System From Rear And It Frees It Up.Thought I Give You Alittle More Info. Once Again Thanks For The Quick Reply..

< Message edited by Zach -- 8/26/2008 8:48:16 PM >

(in reply to Zach)

Post #: 4

RE: Brake Question Need Some Parts -> - 8/26/2008 9:00:50 PM

malbojah

Posts: 397
Joined: 3/10/2006
From: Cape Cod, MA
Status: offline

Question Zach: when you bled the rear line did you bleed from the front slave cylinder also (the one on the left fork leg behind the reflector?)

_____________________________

I''ll fix the HOW TO''s once the forums are fixed

HOW TO: Valve Adjustment

HOW TO: Plastic Speedo Gear Replacement

HOW TO: Clutch Replacement (PICTURE INTENSE)
http://www.cbrforum.com/m_266491/mpage_1/key_/tm.htm#266491

(in reply to Zach)

Post #: 5

RE: Brake Question Need Some Parts -> - 8/26/2008 9:12:28 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

A Freind Did This, I Just Bought The Bike Today..Im Not Sure How He Bled The System. I Just Know He Hard Braked The Bike At High Speeds And The Rear Caliper Locked Up And Came Loose Alittle And He Tryed To Drive It Home And The Rear Brake Rotor Got Beat Red And Got So Hot It Blew Both Rear Brake Lines. So Something Must of Happened...

When He Bled The System The Bike Moves Freely Until He Hits The Front Brakes Couple Times Then The Drag Comes On To The Rear.. Thats The Best I Can Explain It.. Hmmm I Just Would Like To Know What Needs Fixed So I Can Drive It..Thanks

(in reply to malbojah)

Post #: 6

RE: Brake Question Need Some Parts -> - 8/26/2008 9:19:49 PM

malbojah

Posts: 397
Joined: 3/10/2006
From: Cape Cod, MA
Status: offline

Ok, the front brake activates the center piston on the rear caliper. The rear brake pedal uses the outer pistons on the rear caliper. It sounds like the center piston was not bled from the slave cylinder. This would mean that the fluid cannot return when the brake lever is released. Also, I would take a good look at those pads now that they''ve been torched more than once. Shadow1 should be in here any second posting a link to the service manual.

_____________________________

I''ll fix the HOW TO''s once the forums are fixed

HOW TO: Valve Adjustment

HOW TO: Plastic Speedo Gear Replacement

HOW TO: Clutch Replacement (PICTURE INTENSE)
http://www.cbrforum.com/m_266491/mpage_1/key_/tm.htm#266491

(in reply to Zach)

Post #: 7

RE: Brake Question Need Some Parts -> - 8/26/2008 9:22:54 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

Thanks So If Its Bled Correctly It Will Be Fixed? Also I Got A Haynes Service And Repair Manual Honda CBR600F1 & 1000F Fours 87 to 96 With The Bike.. Ill Post A Pic Of The Bike...

< Message edited by Zach -- 8/26/2008 9:43:57 PM >

(in reply to malbojah)

Post #: 8

RE: Brake Question Need Some Parts -> - 8/26/2008 9:31:06 PM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

http://i26.photobucket.com/albums/c115/NotchMan93/94cbr004.jpg
http://i26.photobucket.com/albums/c115/NotchMan93/94cbr006.jpg
http://i26.photobucket.com/albums/c115/NotchMan93/94cbr008.jpg
http://i26.photobucket.com/albums/c115/NotchMan93/94cbr005.jpg

(in reply to Zach)

Post #: 9

RE: Brake Question Need Some Parts -> - 8/26/2008 9:52:36 PM

Shadow

Posts: 3615
Joined: 12/21/2007
From: Pinetown, South Africa
Status: offline

The man from Cape Cod was a bit ahead of me (Hi Malbojah)

Here''s the link to the works manuals:
http://members.iinet.net.au/~cbr/Honda_CBR1000F_Service_Manual.pdf>
OR
http://myweb.tiscali.co.uk/midlife/images/Honda_CBR1000F_Service_Manual.pdf
and for the Haynes Manual in GIF format for 87-96
http://blackbears.ru/index_en.php?get=manual

(in reply to malbojah)

Post #: 10

RE: Brake Question Need Some Parts -> - 8/27/2008 8:29:47 AM

Zach

Posts: 53
Joined: 5/29/2008
Status: offline

So Does This Sound Just Like The Bike Needs Bled Correctly? Or Is The Caliper Messed Up? Thanks..

(in reply to Shadow)

Post #: 11

RE: Brake Question Need Some Parts -> - 8/27/2008 10:18:09 AM

bicklebok

Posts: 107
Joined: 7/7/2008
From: Montgomery, AL USA
Status: offline

Im not an expert on the Hurricane braking system, but I replaced the pads on mine and I know a little about disc brake systems. I would be bleeding the brakes again to see if it will free up the stuck piston. If one of the pistons is still sticking, you can pull the caliper and see which piston is still sticking and use a pair of pliers to gently(very gently and evenly) push it back into the caliper. Then reinstall the caliper and bleed again. If it still sticks, you have problems with the seals, pistons, or even possibly with the caliper.

No matter what, you have yourself an awesome bike and should be able to get her going pretty quick.

_____________________________

Ronnie Daniels in Montgomery, AL
1993 CBR 1000 F
2005 Kawasaki Vulcan 750

(in reply to Zach)

Post #: 12

RE: Brake Question Need Some Parts -> - 8/27/2008 10:34:08 AM

Shadow

Posts: 3615
Joined: 12/21/2007
From: Pinetown, South Africa
Status: offline

Bleed the brakes according to the procedure in the Manual, or it WON''T FUNCTION PROPERLY.

Only then will you know if you have other problems.

(in reply to Zach)

Post #: 13

RE: Brake Question Need Some Parts -> - 8/27/2008 1:15:57 PM

tallenuf

Posts: 224
Joined: 7/2/2008
From: San Jose, CA.
Status: offline

+1 Shadow. That is the best way to evaluate your brake issue. That way you are eliminating at least one important variable. Normally, air in a brake line would not cause the problem you describe (it would cause other problems), but with these linked brakes who knows. They are much more complicated than regular separate front/rear brake systems.

_____________________________

My motorized toy list (still under construction):
1993 CBR1000F
2005 DRZ400E
1997 Trans Am WS6 convertible (only 21k miles!)

(in reply to Shadow)

Post #: 14

RE: Brake Question Need Some Parts -> - 8/27/2008 4:31:08 PM

TimBucTwo

Posts: 608
Joined: 6/13/2006
From: Upstate NY, USA
Status: offline

Zach, when you pull the lever (front brake) the left caliper engages the rotor. When this happens the caliper moves in the direction of the rotating rotor. Though linkage the caliper pushes on the secondary master cylinder and in doing so sends brake fluid to the rear caliper.

I think that you may have issues with the secondary master cylinder sticking. Also, the brake fluid that is sent to the rear caliper goes through a proportional valve. The valve may be faulty.

If you try to rebuild the fronts, take a good look at the parts list. There are 6 pistons up front of 4 different sizes.
I think the rear has 2 different sizes.

(in reply to Zach)

Post #: 15