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Pontlee77
Posted on Wednesday, October 30, 2013 - 03:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hello I just installed the rear brake that goes hidden in the swingarm, i did the bleed procedure, but i do'nt seem to get any presure, it happened with the X1 when i changed the line and when i took it for a spin it started to work any suggestions?
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Buewulf
Posted on Wednesday, October 30, 2013 - 04:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Did you use a vacuum tool to bleed them? I discovered that a good, old-fashioned pressure bleed was still needed at the end of the process on another bike I had.

How many times have you pumped the brake to see if pressure was restored?
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Buell_lee
Posted on Wednesday, October 30, 2013 - 06:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hi Miguel, unlike the front brake the back master cylinder is not much higher than the caliper this can cause a bubble in the line which can be very hard to get out. You should be able to get this out using a vacuum tool or what I have done in the past was to disconnect the caliper and bleed it while it is lower than the master cylinder. (make sure you use something in between the pads so that the cylinders don't pop out).
Hope this helps.
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Kag
Posted on Wednesday, October 30, 2013 - 08:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Vaccuum bleed is what I use also....makes quick work of it
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Mark_weiss
Posted on Wednesday, October 30, 2013 - 09:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Remove the caliper and block the pads apart with a piece of wood. Raise the caliper high enough that the brake line runs entirely uphill. Maintaining that position, bleed from the caliper end. No special tools needed.

Air travels uphill.
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Pontlee77
Posted on Thursday, October 31, 2013 - 07:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I tried raising the caliper above the seat level but no air seems to come out.

The pressure bleed is to fill in a large syringe and fill it up from the caliper?

or pull out the liquid with a syringe until there is just liquid coming out?
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Buewulf
Posted on Thursday, October 31, 2013 - 11:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

To pressure bleed is to use a pressurized container to force fluid through the master and out of the bleed screw, opposite of the more common vacuum tools. Either tool should do the trick, though, one bike I had just really preferred to be pressure bled for some reason. I also have a Toyota Avalon that really does much better with pressure than vacuum.

What does the piston movement look like? Is it coming out at all? Is it going back in?
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Pontlee77
Posted on Thursday, October 31, 2013 - 07:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

it moves a bit but not enough, i used a spare disc to work on the bleeding as being the hidden caliper is complicated to do in it's place, actually it's nearly impossible fitted in.
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Buewulf
Posted on Friday, November 01, 2013 - 12:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Do you have access to a vacuum or pressure bleeder? You can get them pretty cheap here. Less than $25 usually. You've either got a troublesome bubble in there somewhere or a problem with the master. Do you still see any bubbles coming out with the fluid when you bleed it?
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Zac4mac
Posted on Sunday, November 03, 2013 - 12:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I trick I learned only a few years back -

After "bleeding the brakes" (pressure-bleed screw-close screw-release lever), bungee/tape/rubber-band the lever in the fully compressed state.
Go home, drink a beer, relax.

Next morning brakes work perfectly!!!!!!!!!

Z
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Pontlee77
Posted on Monday, November 04, 2013 - 04:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Finally sorted out i lifted up the rear caliper as tall as possible made sure all the line was going up and after a few bleeds got all the air out, so now just need to ride and get the pads to mold to the disc, than is for the help.

Time to ride a bit
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