Bled front break now NO pressure
Thread Starter
|
Cruiser
Joined: Dec 2009
Posts: 135
Likes: 7
From: Whitby Ontario
Bled front break now NO pressure
So I had spongy front break decide to bled did everything right. Got a vacuum break bleeder. Had air bubble for an hour figure I was getting air in the lines as the tube kept falling off so tried old school bled by hand . Of course none of the hoses on the nipple fit perfectly and had to hold it on by hand,anyhow went from spongy to no pressure what so ever . Would the next move to push calipers out or do I have a bad Master Cylinder ....little stressed. Its a 1988 evo
Seasoned HDF Member
Joined: Sep 2017
Posts: 12,257
Likes: 4,947
From: England
So you let all the fluid out and now you have no brake. To say you did it right is clearly not true. 
I use one of these
and even though you are supposed to be able to bleed the brake on your own I still get some help to do the job.
The easiest mistake is not watching the master cylinder and having it empty letting more air back in.
I use one of these
and even though you are supposed to be able to bleed the brake on your own I still get some help to do the job.
The easiest mistake is not watching the master cylinder and having it empty letting more air back in.
Last edited by Andy from Sandy; Sep 16, 2019 at 02:44 PM.
Thread Starter
|
Cruiser
Joined: Dec 2009
Posts: 135
Likes: 7
From: Whitby Ontario
So you let all the fluid out and now you have no brake. To say you did it right is clearly not true.
I use one of these https://www.amazon.co.uk/Vizibleed-B...=fsclp_pl_dp_7
and even though you are supposed to be able to bleed the brake on your own I still get some help to do the job.
The easiest mistake is not watching the master cylinder and having it empty letting more air back in.
I use one of these https://www.amazon.co.uk/Vizibleed-B...=fsclp_pl_dp_7
and even though you are supposed to be able to bleed the brake on your own I still get some help to do the job.
The easiest mistake is not watching the master cylinder and having it empty letting more air back in.
Road Captain
Joined: Aug 2016
Posts: 696
Likes: 488
From: Southern Indiana
Sounds to me like somehow you got air into the system. I would do it again by hand, carefully squeezing the lever to bleed and make sure the bleeder is totally closed before letting off pressure and making sure you keep fluid in the reservoir. You should only need to refill the reservoir two or three times to totally bleed the front line.
Thread Starter
|
Cruiser
Joined: Dec 2009
Posts: 135
Likes: 7
From: Whitby Ontario
Sounds to me like somehow you got air into the system. I would do it again by hand, carefully squeezing the lever to bleed and make sure the bleeder is totally closed before letting off pressure and making sure you keep fluid in the reservoir. You should only need to refill the reservoir two or three times to totally bleed the front line.
Seasoned HDF Member
Joined: Aug 2006
Posts: 24,531
Likes: 30,852
From: Pennsylvania
Like the post above states, you still have some air in the system. It The air bubbles will compress and have pressure, but when you let them alone for a while they will expand and you will have a spongy lever. Speed bleeders are your friend: http://www.speedbleeder.com/ Go to the bottom of the Chart for HD: http://www.speedbleeder.com/Motorcyc...ley%20Davidson
Seasoned HDF Member
Joined: May 2008
Posts: 21,174
Likes: 12,745
From: South Carolina
A 1988 Evo...Come on, tell us what are you working on.
Front brake, one or two calipers?
Rear Brake?
Front brake, one or two calipers?
Rear Brake?
Trending Topics
Seasoned HDF Member
Joined: May 2008
Posts: 21,174
Likes: 12,745
From: South Carolina
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Seasoned HDF Member
Joined: May 2008
Posts: 21,174
Likes: 12,745
From: South Carolina
Seriously? Come on man, tell us WTF you are working on...What model bike, front brakes (single or dual disc) or rear?
This is a 31 year old bike, are the hoses original?
How long has it been since the calipers and master cylinders have been rebuilt?
Head down to the hardware store and get some clear tubing that will fit snug onto the bleeder nipple.
Those vacuum bleeders are more trouble than they are worth, do it the old school way.
This is a 31 year old bike, are the hoses original?
How long has it been since the calipers and master cylinders have been rebuilt?
Head down to the hardware store and get some clear tubing that will fit snug onto the bleeder nipple.
Those vacuum bleeders are more trouble than they are worth, do it the old school way.
Thread Starter
|
Cruiser
Joined: Dec 2009
Posts: 135
Likes: 7
From: Whitby Ontario
Ok found the issue the tiny metal original break line that comes from the Master C has a pin hole. Guess previous owner tried bending it . Yes so I have air in the lines and thats why the speed bleeder didnt work also agree about going ole Skool for bleeding.
i found this out by placing tape around the hose where the pin hole was when I had no pressure on the lever left it all night with lever pulled in got pressure back and has stayed for over a week which wouldnt work when tried without taping the line. Looks like I will be getting a more modern break line .
thanks for all the feed back
i found this out by placing tape around the hose where the pin hole was when I had no pressure on the lever left it all night with lever pulled in got pressure back and has stayed for over a week which wouldnt work when tried without taping the line. Looks like I will be getting a more modern break line .
thanks for all the feed back