Bleeding air out of front caliper

Energy One

No H2O

Active Member
The front caliper doesn't engage right away and there's not much stopping power.
I figure there air in the line and I want to bleed the air out.
I've reviewed How-to writeups and videos but just to make sure I do it right, here's the steps I'm planning on performing:
1. Take the top off the reservoir and put a tarp or rag under it.
Note that I already looked at this and there's a very shallow area holding the fluid and the the fluid quantity has barely risen to that level. Not sure how high the fluid level's supposed to be.
2. Have a buddy (or the old lady) squeeze the brake lever a few times then hold it against the handgrip.
3. Loosen the bleed bolt on the caliper so that water and air come out through the hose.
4. Tighten the bleed bolt.
5. Repeat 2-4 above until no more air comes out of the caliper.
6. Fill the reservoir to capacity with DOT5.
7. Tighten the reservoir back up.

Sound right?
 

Reddickracing

Well-Known Member
Power bleeder is the way but that way will work just takes longer. Rub your finger across the brake rotor, is there a wet film? Mine wasn't stopping good and had a wet film on rotor. Rebuilt caliper with new orings and works a lot better now. Front brakes are not the best anyway
 

No H2O

Active Member
Rub your finger across the brake rotor, is there a wet film? Mine wasn't stopping good and had a wet film on rotor. Rebuilt caliper with new orings and works a lot better now. Front brakes are not the best anyway
I'll check for the wet film, I take it that'll be brake fluid leaking?
I do notice a loud noise when I squeeze the front brake lever, sort of like a cow groaning.
 
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Reddickracing

Well-Known Member
Yea I agree, both my Harleys have awesome front stopping power but not the dog. Didn't say it was bad, it works and works good just not like my other bikes. Iv read several people on here say the front brakes are a lil inferior.
 

Jersey Big Mike

100K mile club
You can do it old school by yourself, right hand pump the brake and hold, left hand loosen and tighten, done.
Last time I tried that stretch, I put the back out for a week -- buy the tool, you're body will thank you for it, maybe not today but eventually.
 

BWG56

Guru
Last time I tried that stretch, I put the back out for a week -- buy the tool, you're body will thank you for it, maybe not today but eventually.
Its 41" on my Mastiff between the bleeder and the lever, add another 7" for a K9 making it 48". if you can't reach that far ya prolly shouldn't be riding a Dog anyway cause your feet won't touch the ground.:oldhardlaugh:
On the other hand, no pun intended, most people prolly have a problem getting one hand to squeeze the lever and the other to turn the wrench anyway.:oldlaugh:
 

bdm7250

Guru
Supporting Member
Yea I agree, both my Harleys have awesome front stopping power but not the dog. Didn't say it was bad, it works and works good just not like my other bikes. Iv read several people on here say the front brakes are a lil inferior.
My slammer has six piston dual disc on the front and in my opinion it's no better than my mastiff, but then again I do ride like an old lady..:D
 

Th3InfamousI

Administrator
Staff member
Power bleeder is the way but that way will work just takes longer. Rub your finger across the brake rotor, is there a wet film? Mine wasn't stopping good and had a wet film on rotor. Rebuilt caliper with new orings and works a lot better now. Front brakes are not the best anyway
I agree those speedbleeders I have it just takes longer when starting from scratch. Last time I did a brake job I put a regular bleeder in and got it started then used the power bleeder to finish it off. I couldn't get the speedbleeder to get it going. Honestly based on that I know people rant and rave about them but the speed is all in the name not the process.

I'm thinking about changing them back and just using my pneumatic bleeder for a second instead

Sent from my 2PS64 using Tapatalk
 

Jersey Big Mike

100K mile club
I agree those speedbleeders I have it just takes longer when starting from scratch. Last time I did a brake job I put a regular bleeder in and got it started then used the power bleeder to finish it off. I couldn't get the speedbleeder to get it going. Honestly based on that I know people rant and rave about them but the speed is all in the name not the process.

I'm thinking about changing them back and just using my pneumatic bleeder for a second instead

Sent from my 2PS64 using Tapatalk
Not really worried if it takes longer -- done right considering its the brakes is more important to me. I'm an old man -- I've got the time
 
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