Author Topic: brake bleeding/flushing question. (Read 11963 times)

Conrad · « **on:** August 25, 2011, 05:41:03 AM »

I'm about to do a flush and fill on both brakes and the clutch for the first time. I have Fred's DVDs and it looks simple enough, even for me. The question that I have is about the rear brake. In Fred's videos he doesn't mention the second bleed point at all on the rear caliper, the one on the inside.

Does anyone know if it matters in what order I bleed the rear caliper?

I asked Fred this question but got no reply.

VirginiaJim · « **Reply #1 on:** August 25, 2011, 05:50:42 AM »

I do the one closest to the wheel first. Don't know if that's right or wrong, Conrad. I haven't had any issues doing it that way.

gPink · « **Reply #2 on:** August 25, 2011, 05:54:31 AM »

Not having done it I'm no expert but I'd bleed the lowest first if there is a difference.

B.D.F. · « **Reply #3 on:** August 25, 2011, 06:10:29 AM »

I don't think so, especially since you are not really going to bleed the system, only change the fluid. If there is no air in the system then it does not really matter which side is done first or last.

Just a suggestion but do yourself a gigantic favor and don't allow the master cylinder to suck any air. The C-14 is the worst vehicle I have ever seen regarding priming and purging the hydraulic systems. Just pushing fluid through the system is no problem but I have found it very difficult trying to force air out of any of the systems.

Brian

Quote from: Conrad on August 25, 2011, 05:41:03 AM

I'm about to do a flush and fill on both brakes and the clutch for the first time. I have Fred's DVDs and it looks simple enough, even for me. The question that I have is about the rear brake. In Fred's videos he doesn't mention the second bleed point at all on the rear caliper, the one on the inside.

Does anyone know if it matters in what order I bleed the rear caliper?

I asked Fred this question but got no reply.

koval68 · « **Reply #4 on:** August 25, 2011, 08:03:31 AM »

I don't think it matters,Conrad. I double what Brian have said about not allowing the master cylinder to suck any air, pump it two or three times and top it up! Get one of those MotionPro one way bleader valves.....they really make this job effortless.

Conrad · « **Reply #5 on:** August 25, 2011, 08:32:20 AM »

Thanks for the replies guys.

I spoke too soon about Fred not replying, his suggestion was to start with the inboard bleeder first.

As Pink suggested I thought it made more sense to do the lower bleeder first, whichever that one is. I'd have to walk out to the bike to see.

Then again as Brian said, I'm just pushing fluid through the system, as I don't have any air in the lines, so it doesn't really matter does it?

Got it, two pumps and top 'er off.

Koval, I did order a MotionPro bleeder valve, it should be here ~~tomorrow~~ today, it's been delivered.

OregonLAN · « **Reply #6 on:** August 25, 2011, 08:52:30 AM »

I installed speed bleeder valves on mine. Was well worth the ~$20.00.

Mad River Marc · « **Reply #7 on:** August 25, 2011, 09:34:30 AM »

I have the Motion Pro Valve...makes it a snap

VirginiaJim · « **Reply #8 on:** August 25, 2011, 09:46:23 AM »

gPink · « **Reply #9 on:** August 25, 2011, 09:53:35 AM »

Quote from: Conrad on August 25, 2011, 08:32:20 AM

Koval, I did order a MotionPro bleeder valve, it should be here tomorrow.

What bleeder valve did you order? Looking at MotionPro site and I'm not sure.

Mad River Marc · « **Reply #10 on:** August 25, 2011, 09:55:59 AM »

http://www.motionpro.com/motorcycle/partno/08-0143

Conrad · « **Reply #11 on:** August 25, 2011, 09:56:00 AM »

Quote from: gPink on August 25, 2011, 09:53:35 AM

What bleeder valve did you order? Looking at MotionPro site and I'm not sure.

Motion Pro Hydraulic Brake Bleeder 08-0143

Conrad · « **Reply #12 on:** August 25, 2011, 09:59:10 AM »

Marc beat me by one second! lol

Mad River Marc · « **Reply #13 on:** August 25, 2011, 10:33:55 AM »

CrashKLRtoConnie · « **Reply #14 on:** August 25, 2011, 11:15:53 AM »

Per URL

If the caliper has two bleed screws, start at the inboard bleeder first

http://www.motorsportbrakespecialists.com/Brake_System_Bleeding.html

For calipers with 2 bleeders, repeat this process for the outboard bleeder

Conrad · « **Reply #15 on:** August 25, 2011, 11:32:41 AM »

Well there you go, the consensus is to do the inboard bleeder first. Thy will be done.

CrashKLRtoConnie · « **Reply #16 on:** August 25, 2011, 01:16:08 PM »

You could bleed them with be bike on the side stand to have one lower than the other ... and / or ... buy 2 motion pro bleeders and do bleed both screws at the same time.

My guess is as long as you are careful almost any method will provide acceptable results ...

B.D.F. · « **Reply #17 on:** August 25, 2011, 01:34:22 PM »

Are you going to use synthetic brake fluid now that you've broken in the system on regular brake fluid? If you use synthetic, do you expect to get more miles out of the brakes? Will the brakes run cooler? I've heard that if you use synthetic brake fluid you can extend the intervals between braking. How long do you plan on going in- between stops with the new brake fluid? Can you do a stoppie with synthetic brake fluid?

Brian

Quote from: Conrad on August 25, 2011, 05:41:03 AM

I'm about to do a flush and fill on both brakes and the clutch for the first time.

<snip>

Mad River Marc · « **Reply #18 on:** August 25, 2011, 01:56:48 PM »

Quote from: B.D.F. on August 25, 2011, 01:34:22 PM

Are you going to use synthetic brake fluid now that you've broken in the system on regular brake fluid? If you use synthetic, do you expect to get more miles out of the brakes? Will the brakes run cooler? I've heard that if you use synthetic brake fluid you can extend the intervals between braking. How long do you plan on going in- between stops with the new brake fluid? Can you do a stoppie with synthetic brake fluid?

Brian

No, Synthetic wont' work in the braking system, you have to use Vegtable oil!!

Conrad · « **Reply #19 on:** August 25, 2011, 01:57:16 PM »

Quote from: B.D.F. on August 25, 2011, 01:34:22 PM

Are you going to use synthetic brake fluid now that you've broken in the system on regular brake fluid? If you use synthetic, do you expect to get more miles out of the brakes? Will the brakes run cooler? I've heard that if you use synthetic brake fluid you can extend the intervals between braking. How long do you plan on going in- between stops with the new brake fluid? Can you do a stoppie with synthetic brake fluid?

Brian

So many questions! I plan on using synthetic brake fluid and never having to stop at all. I'll slow down a bit (maybe) while my wife runs alongside the bike with a large gas can when it's time to fill 'er up.

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Author Topic: brake bleeding/flushing question. (Read 11963 times)