Rgs caliper install brake bleed help please
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Cruiser
Joined: Sep 2012
Posts: 231
Likes: 6
From: Ct
Rgs caliper install brake bleed help please
Hello I just installed new Red calipers one my 18 rgs with abs. A lot of fluid leaked out when removing banjo fitting and swapping over on new caliper.wverything is back together and tightened,but
i am guessing there is air in line because I cant build up any pressure in the brake lever
is dealer my only option since I have abs? Any help appreciated
i am guessing there is air in line because I cant build up any pressure in the brake lever
is dealer my only option since I have abs? Any help appreciated
Cruiser
Joined: May 2012
Posts: 175
Likes: 98
From: Indiana
After attaching the line to the calibers and installing the calipers, did you go back and bleed both calipers?
Your description does not say exactly what you did to your bike.
All is not lost. Tell us what steps you did!
Your description does not say exactly what you did to your bike.
All is not lost. Tell us what steps you did!
Thread Starter
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Cruiser
Joined: Sep 2012
Posts: 231
Likes: 6
From: Ct
i just tightened everything and tried pumping brake lever
also I did turn ignition on but never started
Cruiser
Joined: May 2012
Posts: 175
Likes: 98
From: Indiana
You likely emptied the front lines of all fluid. It will take some time to purge the system.
Also, When you break the lines (remove at the banjo bolts) you should (1) remove the caliper. then (2) squeeze the front brake level 3/4 ways (and hold it there) to close the return port in the master cylinder. This effectively creates a vacuum condition in the front lines, minimizing fluid loss at the banjo bolt. Think about what happens when you place your finger over the end of a straw. Pull the straw out and the fluid stays inside it.
Rule #1 Never take shortcuts with your brake maintenance. It will save your life.
Rule #2 I really believe that ABS purging is necessary. This means either paying someone to purge, or buy the tool to do it yourself. In my neck of the frozen tundra, a HD service call to bleed ABS brakes is $170. You can buy an excellent tool to purge your brakes (for a lifetime) for $179! Don't fark with your brakes!
I don't believe the video that it bleeds an ABS module correctly. Modern ABS systems have check valves that isolates the ABS from the rest of the system. When you squeeze/bleed a brake, you're only purging the fluid on the downstream side of the check valve. You have to run the ABS pump to remove the old fluid on the other side of the check valve.
Available here: http://infotechmercenary.com/shop/
Disclosure: I'm only a customer that is happy with this tool. It pays for itself in one bleed. It is a quality tool.
Last edited by rozemab; Jan 25, 2020 at 05:46 PM.
Seasoned HDF Member
Joined: Apr 2008
Posts: 23,399
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From: Spartan Country, Michigan
I was a licensed service technician, and understand braking systems.... I do not say this lightly... it appears you have little mechanical knowledge or background. I would strongly advise you contact the local dealer and have them take care of things. Brakes are nothing to mess with if you do not know or understand what you are doing. I would hesitate to even ride that to your dealer..... i would see about having someone pick it up. If you cannot stop that bike, bad things can happen.......
Seasoned HDF Member
Joined: Jan 2006
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From: Charleston, SC
Hello I just installed new Red calipers one my 18 rgs with abs. A lot of fluid leaked out when removing banjo fitting and swapping over on new caliper.wverything is back together and tightened,but
i am guessing there is air in line because I can’t build up any pressure in the brake lever
is dealer my only option since I have abs? Any help appreciated
i am guessing there is air in line because I can’t build up any pressure in the brake lever
is dealer my only option since I have abs? Any help appreciated
Then using fresh fluid, attach it to the farthest brake caliper, open the bleeder and use it to push brake fluid into the caliper and back up to the master cylinder.
This will bring all the air with it minus any trapped in the ABS module.
Moving between calipers, fill the master cylinder this way, closing the bleeder(s) every time you reload. After, bleed the system as normal.
Eventually you'll have pressure back, but you really should head to a dealer to have the ABS module activated and bled just to be safe.
Good luck.
Last edited by lp; Jan 25, 2020 at 08:15 PM.
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Cruiser
Joined: Sep 2012
Posts: 231
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From: Ct
I ended up hooking line to each brake caliper. Lesser and pumped handle a bunch of times on each one
tightened all back up and the lever is 10 times better
i will prob have Harley check the abs while I am there for my clutch recall in a few weeks though
thanjs for help
tightened all back up and the lever is 10 times better
i will prob have Harley check the abs while I am there for my clutch recall in a few weeks though
thanjs for help
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From: Plover, WI
Available here: http://infotechmercenary.com/shop/
Disclosure: I'm only a customer that is happy with this tool. It pays for itself in one bleed. It is a quality tool.
Disclosure: I'm only a customer that is happy with this tool. It pays for itself in one bleed. It is a quality tool.
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