The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Drivetrain > Sportster Motorcycle Tires, Wheels, and Brakes
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Sportster Motorcycle Tires, Wheels, and Brakes Discuss issues with Sportster motorcycle tires, wheels and brakes.

Active Threads
0 burrs & grooves in clutch basket
Last Post: jkinkade
Posted On: 2 Minutes Ago
Replies: 13
Views: 523
0 Can a dirt bike keep up?
Last Post: 1HD4CJM1X4K
Posted On: 4 Minutes Ago
Replies: 0
Views: 1
0 This is gonna hurt.
Last Post: rubine
Posted On: 23 Minutes Ago
Replies: 7,558
Views: 1,416,062
0 inlet rubber band available by the meter?
Last Post: eddie XLX
Posted On: 35 Minutes Ago
Replies: 18
Views: 627
0 Howdy from Baytown, TX
Last Post: juzyHD
Posted On: 1 Hour Ago
Replies: 2
Views: 28
0 Building a dragbike 101
Last Post: the cowboy way
Posted On: 2 Hours Ago
Replies: 5
Views: 258
0 How stock is your bike
Last Post: SLW210
Posted On: 3 Hours Ago
Replies: 137
Views: 28,521
0 Mixture screw has no effect. Need help!
Last Post: Big Al
Posted On: 3 Hours Ago
Replies: 16
Views: 433
0 Have I got my cam gears lined up right?
Last Post: doodah man
Posted On: 3 Hours Ago
Replies: 11
Views: 236
0 IronHead Wire Diagrams Etc
Last Post: ryder rick
Posted On: 3 Hours Ago
Replies: 48
Views: 34,803
0 modifying to metal oil tank.
Last Post: Grumpy-Biker
Posted On: 4 Hours Ago
Replies: 9
Views: 387
0 Who's still riding???
Last Post: IronMick
Posted On: 4 Hours Ago
Replies: 31
Views: 704
0 What did you do for your sporty Today?
Last Post: dodgetrucken
Posted On: 5 Hours Ago
Replies: 5,493
Views: 636,073
0 Seat Poll - Bad Ass or Fat Ass
Last Post: Glamazon
Posted On: 5 Hours Ago
Replies: 37
Views: 11,806
0 Memphis Shades Rio Grande & Trigger Lock
Last Post: jswhite
Posted On: 5 Hours Ago
Replies: 5
Views: 131
14 How To: View HD Part #'s 1991-2010 - All Models - With Part #'s and Exploded Views!!
Last Post: shanneba
Posted On: 6 Hours Ago
Replies: 84
Views: 59,518
6 Is Your SPORTSTER...
Last Post: Sportycus
Posted On: 6 Hours Ago
Replies: 9
Views: 1,368
5 Your stomping grounds
Last Post: sportsterpaul
Posted On: 6 Hours Ago
Replies: 238
Views: 27,801
0 To lay it down or not?
Last Post: IXL2Relax
Posted On: 6 Hours Ago
Replies: 166
Views: 18,707
0 FLH saddlebags on Easy Brackets
Last Post: Hippysmack
Posted On: 6 Hours Ago
Replies: 1
Views: 60
0 How many amps does a 2003 XB charging system create?
Last Post: IXL2Relax
Posted On: 7 Hours Ago
Replies: 3
Views: 126
0 Spokes and dual disc
Last Post: PetesPonies
Posted On: 7 Hours Ago
Replies: 6
Views: 160
0 Hot Chicks on Hot Bikes
Last Post: Stairman
Posted On: 7 Hours Ago
Replies: 9,322
Views: 1,443,251
0 Those little ways to personalize your bike...
Last Post: Jollly Rogers
Posted On: 8 Hours Ago
Replies: 1
Views: 187
0 New Tires>Fallaway>Deale r>?
Last Post: ed_in_az
Posted On: 8 Hours Ago
Replies: 33
Views: 2,034
0 When Were You Born?
Last Post: MacSporty02
Posted On: 9 Hours Ago
Replies: 319
Views: 75,187
0 Cracked exhaust bracket short shots
Last Post: newroadster
Posted On: 9 Hours Ago
Replies: 2
Views: 81
0 Early/Late 73 case date code
Last Post: brucstoudt
Posted On: 9 Hours Ago
Replies: 13
Views: 582
0 seat bolt
Last Post: brucstoudt
Posted On: 9 Hours Ago
Replies: 8
Views: 340
0 Gravydog crashed again.
Last Post: gravydog
Posted On: 10 Hours Ago
Replies: 120
Views: 7,293
More...
Members Birthdays
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #1  
Old 11th July 2018
Danger_Jake Danger_Jake is offline
Biker
 
Join Date: Jul 2018
Posts: 3
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1973
Reputation: 10
Danger_Jake is an unknown quantity at this point
Default Bannana Caliper 73 XLCH- no brakes?!?

Okay so I've got a 73 XLCH with, what I believe is a one year only bannana caliper.

Old caliper needed to be rebuilt and the bleeder screw port was stripped so got a new caliper got it mounted and and was fighting to get it bled FOREVER, no matter what I did it felt like there was still air in the lines but after reverse bleeding it I'm pretty confident that there's no air left but I still have no brake.

Put a new line on it too, I know some times they swell and absorb the pressure from the master cylinder, still no brakes.

It's got some resistance on the lever but it goes all the way to the bars.

It seems like the puck isn't traveling as far as it needs to, I'm beyond frustrated I can't figure out how a single piston caliper 3 feet of line and a master cylinder have stumped me for a week.
Reply With Quote
  #2  
Old 11th July 2018
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 8,528
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1355214
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

well, back the pads back into the caliper and then shim with wood. try the brake, ok ??? if so, need new pads. hd does not have a brake pad wear indicator system, just a loss of stroke. next would be to observe the master when applying lever. is the fluid returning through the little hole?? if so, probably need a new cup.
Reply With Quote
  #3  
Old 14th July 2018
Danger_Jake Danger_Jake is offline
Biker
 
Join Date: Jul 2018
Posts: 3
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1973
Reputation: 10
Danger_Jake is an unknown quantity at this point
Default

Well it's a brand new caliper (and pads), new master cylinder and a new line. There is fluid returning through the small hole, I thought that was supposed to happen?!
Reply With Quote
  #4  
Old 15th July 2018
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 8,528
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1355214
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

in static position, the small hole towards the line going to the caliper is a common port that allows caliper fluid to return to the master. when you apply lever, the piston cup covers this hole and so it can build pressure in the caliper. in static form, this hole compensates for heat expansion. the larger hole is a return. when the piston drags backwards, the backup/seal o-ring causes a diff'l pressure that relaxes the chevron cup and the fluid will return to the master, notice the grooving on the metal piston part. if it wasn't for this, brake release would be longer since the small hole is a restriction and covered with the piston forward. when you first apply lever, you can see a brief spurt up the hole until the cup is pressure forced against the bore wall.
Reply With Quote
  #5  
Old 17th July 2018
JacksBrother's Avatar
JacksBrother JacksBrother is offline
Drag Race Champion
 
Join Date: May 2010
Posts: 399
Sportster/Buell Model: XL1200
Sportster/Buell Year: 1998
Other Motorcycle Model: Harley Davidson FLH
Other Motorcycle Year: 1973
Reputation: 108165
JacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud of
Default

Quote:
Originally Posted by Danger_Jake View Post
Well it's a brand new caliper (and pads), new master cylinder and a new line. There is fluid returning through the small hole, I thought that was supposed to happen?!
I also have a 1973 FLH with the banana caliper. I recently had the same issue after rebuilding the front brake system. New braided line, freshly rebuilt master cylinder & caliper. Filled it with DOT5, pumped away, and the damned thing just refused to bleed-- no matter what. Finally decided there was a void in the dry master cylinder. Took the original hose and cut a few inches off the M/C end & screwed it into the cylinder with the chopped off hose pointed up using the flared elbow. I then drilled the center of the hose out to a little less than 1/4" and twisted a small clear funnel (from my reloading bench) into the open end of the hose. I filled it half full of fluid and slowly squeezed the brake lever. Big bubbles slowly rose in the funnel-- I repeated this until the bubbles stopped and the level in the funnel would rise when the lever was squeezed and lower when released. I hooked the brake line back up and bled the system easily. When trying to bleed a completely dry system, you can get "air locks" in the reservoirs of the M/C and caliper, you just gotta' work 'em out & get fluid back into the hydraulic cylinders at both ends. Hope this helps.
Good luck,
Joe
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Sponsored Links
All times are GMT +1. The time now is 09:01.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC