Hydraulic hand brake bleeding
Posted by BlackWidow
Michael Golden Mega Moderator Location: Tehachapi CA Join Date: 09/08/2010 Posts: 55 Rally Car: 1972 Datsun 510 |
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Michael Golden Mega Moderator Location: Tehachapi CA Join Date: 09/08/2010 Posts: 55 Rally Car: 1972 Datsun 510 |
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Grant Hughes Professional Moderator Location: Whitefish, MT Join Date: 01/11/2006 Age: Midlife Crisis Posts: 6,818 Rally Car: BMW |
Ahh. That makes sense. Well, guess I got lucky with my high dollar CompBrake balance bar.
 Or maybe it did bend and that's why it took a wrench to get it adjusted... Pretty sure that was more due to the brake fluid and dust that it's caked on.
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Paulinho Ferreira Professional Moderator Location: Charlotte, NC Join Date: 03/15/2007 Age: Midlife Crisis Posts: 721 Rally Car: Honda Civic |
You'd be surprised on easy they bend. Normally the redneck round track racers use are the ones running the cheap stuff form wilwood and coleman etc, and when they crash its normally ON the brakes and that G force from the impact is enought to bend that shit to hell and back. Just think about it: big'ol country boy moonshine drinkin and chew spittin gits himself in a spin and dun slams them brakes with all he's got just before slamming the wall. Pedal pressure, 150lbs before impact, after a MILD -4G impact easy 300lbs. So 300lbs x the pedal ratio - about 6:1, it equates to 1800lbs on the 3/8"s diameter balance bar. |
Brian R. Barton Super Moderator Location: The hills of West Virginia Join Date: 02/01/2009 Age: Midlife Crisis Posts: 220 Rally Car: Mazda 323 BP-T |
Michael Golden Mega Moderator Location: Tehachapi CA Join Date: 09/08/2010 Posts: 55 Rally Car: 1972 Datsun 510 |
Hello all...again
Tonight I started the bleeding process (brakes not blood thankfully) I had my daughter doing pedal duty while i ran around and performed the obligatory bleeding at each corner starting with the farthest from the M/C. I decided to pull the hand brake all the way back during this process. I asked my daughter every time i opened the bleed screw if she felt the pedal fall she told me know (only on the rear brakes) the front she could feel it. I then noticed that the hand brake was in the forward position. Hmmmmm i thought ok lets try it now with the hand brake in that position. She could feel it this time and all the brakes were void of any air. I had my daughter pump the hand brake a few times and I instantly noticed the reservoir spilling over the top. So after all that what have i done wrong here is a pic to help with my setup. 
The line coming from the front of the car is going to the M/C and the line from the back is going to the rear brakes. I also noticed that if i pulled the hand brake back and pushed on the brake pedal the hand brake would try to go forward. In its current state If I pump the hand brake it is easy to pull then if i pump the foot pedal it is easy for about 2 pumps then gets stiff again. I looked on the hand brake cyl. for a flow chart but I did not see any. Could i have the cyl. plumbed wrong? Thanks for any help you can give me. Edited 1 time(s). Last edit at 11/08/2011 07:16PM by BlackWidow. |
John Vanlandingham Senior Moderator Location: Ford Asylum, Sleezattle, WA Join Date: 12/20/2005 Age: Fossilized Posts: 14,152 Rally Car: Saab 96 V4 |
well everybody says I'm all opinionated and know-it-all and a generally sociopathic dooood and everything so I'm loathe to criticize so I'll turn over agnu leaf and I won't.
Nice install. I will meekly point out however that I almost always try and plumb the hard line from the footbrake master INTO the INLET of the handbrake master, and it usually seems to work better most of the time. And bleeding goes a lot better-er. But hey, who the fuck am I to say anything? There's really no right and wrong and like everybody has their own like reality, man, so you want to do it that way, then cool, doood. Maybe they switched the inlet to where the outlet has always been, maybe that one master was like unique, maybe cosmic raaaaaays like fried a synapse in the brain of the dood machining it! Maybe this drawing is like all fucked up: 
More guys do it that way first than the silly drawing. They should pay attention to customers, I mean so many do it the way you did, they ought change it. John Vanlandingham Sleezattle, WA, USA Vive le Prole-le-ralliat www.rallyrace.net/jvab CALL +1 206 431-9696 Remember! Pacific Standard Time is 3 hours behind Eastern Standard Time. Edited 1 time(s). Last edit at 11/08/2011 09:36PM by john vanlandingham. |
Paulinho Ferreira Professional Moderator Location: Charlotte, NC Join Date: 03/15/2007 Age: Midlife Crisis Posts: 721 Rally Car: Honda Civic |
Paulinho Ferreira Professional Moderator Location: Charlotte, NC Join Date: 03/15/2007 Age: Midlife Crisis Posts: 721 Rally Car: Honda Civic |
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