Brake bleed problem
Thread Starter
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Supporter
Joined: Oct 2012
Posts: 1,242
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From: Farmingdale, New York
Brake bleed problem
I tried to bleed the front brakes(to change out the fluid)and ran into a problem. It won't bleed. I removed the front brake reservoir cover, hooked up the Mighty Vac to the bleed fitting, pumped it up, opened the bleed fitting and no fluid will come out! I have read through some threads here on how to do this and know about the electronic thingy you have to hook up but I saw that wasn't needed............ What the F did I do wrong now for God's sake?
Club Member
Joined: Jun 2007
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From: Bedford UK
You show in your sig that your bike has ABS. Are you doing this with the factory service manual by your side?! You don't have a direct line from reservoir to bleed nipple, so the old way won't work! Hopefully someone with firsthand experience will call by soon.
Thread Starter
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Supporter
Joined: Oct 2012
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From: Farmingdale, New York
Thanks Man........
Road Master
Joined: Jun 2014
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From: westland Michigan
did you try to gravity bleed them first. Leave the cover off open the bleeder at the bottom and wait for the brake fluid to come out. Then close the bleeder, top of the fluid install cap and then try to bleed again. On my old bike sometimes one had to loosen the bango bolt as air would get stuck at that point and not allow it to pass.
Batman.
Batman.
Club Member
Joined: Jun 2007
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From: Bedford UK
In principle you have to bleed the pipe from the reservoir to the ABS unit, then each pipe from that to the calipers. However I don't have an ABS Harley, so don't know the correct process.
Elite HDF Member
Joined: Oct 2009
Posts: 4,416
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From: San Quirino, Italy
ABS breaks bleed the same as any other. Unless you have turned your ignition on after you introduced air into the system that is...did you pull the gasket after you opened the bleeder? Is the bleeder all the way open?
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On bikes with ABS you need to bleed between the Master Cylinder and the ABS module electronically. It has to be hooked up to a computer, either Digital Technician II at a dealership or an Indy shop that has Techno Research. after that part is bled you bleed from the module to the Calipers the normal way.
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Road Master
Joined: May 2009
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From: TN
On bikes with ABS you need to bleed between the Master Cylinder and the ABS module electronically. It has to be hooked up to a computer, either Digital Technician II at a dealership or an Indy shop that has Techno Research. after that part is bled you bleed from the module to the Calipers the normal way.
Elite HDF Member
Joined: Oct 2009
Posts: 4,416
Likes: 88
From: San Quirino, Italy
On bikes with ABS you need to bleed between the Master Cylinder and the ABS module electronically. It has to be hooked up to a computer, either Digital Technician II at a dealership or an Indy shop that has Techno Research. after that part is bled you bleed from the module to the Calipers the normal way.
Last edited by Northbound Southerner; Oct 30, 2014 at 06:21 PM.