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Bleeding Monowheel Brakes: Curious?

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rparigoris

Joined: 24 Nov 2009
Posts: 792

Posted: Fri Dec 12, 2014 12:48 am Post subject: Bleeding Monowheel Brakes: Curious?

Hi Group



I have an XS Monowheel with stock caliper and master cylinder.



I purchased a bleed kit from Europa which includes a screw in funnel and syringe, but haven't quite gotten to bleeding brakes (closer than further though).



I was reading how some bicycles with single shot master cylinders bleed brakes without making a much of a mess and getting out air in a hurry.



Two questions:



1) Does Europas funnel and syringe do an adequate job?



2) If the answer to question 1) is marginal, do you think bicycle bleed may work better?:

I can scan and post exact procedure if anyone is interested (please just ask). Gist is as follows:

** Bicycles use 2 syringes, one for caliper and one for the master cylinder.

** The syringes both have a clamp/valve to close hose (squeeze hose and pinch it off)

** The caliper syringe has a hose that will allow it to make a 180 degree bend. Idea is you keep hose straight with syringe at bottom of hose, close clamp, pull vacuum, tap and let air rise to top of hose. Keep doing this until most air bubbles gone. Then p[urge air and connect to caliper bleed.

** On this bike system they had you rubber-band lever fully depressed (I didn't ever look close enough at Europa to see if this is valid).

They then connect a syringe to the opening of the master cylinder.

** They then clamp master cylinder syringe

** They then make a 180 bend on caliper syringe and begin pulling a vacuum and pushing, tapping things along the way until you get most of the air stuck under the syringe piston (clever!)

** Then they release clamp on master cylinder and push caliper syringe till you fill master cylinder syringe about half way

** Then clamp caliper syringe and begin pulling suction and pressurizing and tapping master cylinder syringe until most bubbles gone

** Replace plug on caliper

** Top master cylinder and replace plug



OK, what says you? Stick with Europa system of bleeding, or bicycle technique may have some validity? 



Sincerely

Ron Parigoris

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Last edited by rparigoris on Fri Dec 12, 2014 12:05 pm; edited 1 time in total

dpark748(at)icloud.com
Guest

Posted: Fri Dec 12, 2014 9:32 am Post subject: Bleeding Monowheel Brakes: Curious?

Ron,

I adapted the Europa kit by cutting off the bottom part of the reservoir that screws in to the master cylinder and attaching a plastic tube to it long enough to reach a jam jar on the seat area, the tube being pushed thru a hole in the lid.

Syringe fluid into calliper until no bubbles. I am converted to trike now and have to do twice!!

If it's clear the excess in the jar can be reused.

Dave



Sent from my iPad



 	  Quote: 	
		   On 12 Dec 2014, at 8:48 am, rparigoris <rparigor(at)suffolk.lib.ny.us> wrote:

 

 

 

 Hi Group

 

 I have an XS Monowheel with stock caliper and master cylinder.

 

 I purchased a bleed kit from Europa which includes a screw in funnel and syringe, but haven't quite gotten to bleeding brakes (closer than further though).

 

 I was reading how some bicycles with single shot master cylinders bleed brakes without making a much of a mess and getting out air in a hurry.

 

 Two questions:

 

 1) Does Europas funnel and syringe do an adequate job?

 

 2) If the answer to question 1) is marginal, do you think bicycle bleed may work better?:

 I can scan and post exact procedure if anyone is interested (please just ask). Gist is as follows:

 ** Bicycles use 2 syringes, one for caliper and one for caliper.

 ** The syringes both have a clamp/valve to close hose (squeeze hose and pinch it off)

 ** The caliper syringe has a hose that will allow it to make a 180 degree bend. Idea is you keep hose straight with syringe at bottom of hose, close clamp, pull vacuum, tap and let air rise to top of hose. Keep doing this until most air bubbles gone. Then p[urge air and connect to caliper bleed.

 ** On this bike system they had you rubber-band lever fully depressed (I didn't ever look close enough at Europa to see if this is valid).

 They then connect a syringe to the opening of the master cylinder.

 ** They then clamp master cylinder syringe

 ** They then make a 180 bend on caliper syringe and begin pulling a vacuum and pushing, tapping things along the way until you get most of the air stuck under the syringe piston (clever!)

 ** Then they release clamp on master cylinder and push caliper syringe till you fill master cylinder syringe about half way

 ** Then clamp caliper syringe and begin pulling suction and pressurizing and tapping master cylinder syringe until most bubbles gone

 ** Replace plug on caliper

 ** Top master cylinder and replace plug

 

 OK, what says you? Stick with Europa system of bleeding, or bicycle technique may have some validity? 

 

 Sincerely

 Ron Parigoris

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=435636#435636

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keithhickling(at)clear.ne
Guest

Posted: Fri Dec 12, 2014 12:05 pm Post subject: Bleeding Monowheel Brakes: Curious?

Hi Ron,

I used the Europa system and it's really easy and works very well. Very 

effective. No problems.



Regards,

Keith



--

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budyerly(at)msn.com
Guest

Posted: Sat Dec 13, 2014 7:19 pm Post subject: Bleeding Monowheel Brakes: Curious?

Ron,

It's damned adequate for normal use provided the master is level (like it is 

on the trailer).  Bleeding with Dot3/4 is interesting.  One would think the 

bubbles would just flow up hill and it would bleed itself.  Maybe by the 

turn of the century it will.



We do as the bike guys do on an initial build, pull off the master, pass it 

out through the wheel well fire wall, screw in the funnel, then push fluid 

with a syringe up from the caliper and out of the master to a cup.  Once 

filled to the top, the air is gone.  Screw in the cap and the handle should 

be dead hard.  No sponginess.  Then you are good until the brake pad wears 

down.   To adjust the level, install the funnel, leave the master in place, 

put the plane tail up to allow all the air to come out the funnel cup and 

carefully add fluid.  Suck out the excess and seal it up..



Regards,

Bud Yerly

--------------------------------------------------

From: "rparigoris" <rparigor(at)suffolk.lib.ny.us>

Sent: Friday, December 12, 2014 3:48 AM

To: <europa-list(at)matronics.com>

Subject: Bleeding Monowheel Brakes: Curious?



 	  Quote: 	
		   

 <rparigor(at)suffolk.lib.ny.us>



 Hi Group



 I have an XS Monowheel with stock caliper and master cylinder.



 I purchased a bleed kit from Europa which includes a screw in funnel and 

 syringe, but haven't quite gotten to bleeding brakes (closer than further 

 though).



 I was reading how some bicycles with single shot master cylinders bleed 

 brakes without making a much of a mess and getting out air in a hurry.



 Two questions:



 1) Does Europas funnel and syringe do an adequate job?



 2) If the answer to question 1) is marginal, do you think bicycle bleed 

 may work better?:

 I can scan and post exact procedure if anyone is interested (please just 

 ask). Gist is as follows:

 ** Bicycles use 2 syringes, one for caliper and one for caliper.

 ** The syringes both have a clamp/valve to close hose (squeeze hose and 

 pinch it off)

 ** The caliper syringe has a hose that will allow it to make a 180 degree 

 bend. Idea is you keep hose straight with syringe at bottom of hose, close 

 clamp, pull vacuum, tap and let air rise to top of hose. Keep doing this 

 until most air bubbles gone. Then p[urge air and connect to caliper bleed.

 ** On this bike system they had you rubber-band lever fully depressed (I 

 didn't ever look close enough at Europa to see if this is valid).

 They then connect a syringe to the opening of the master cylinder.

 ** They then clamp master cylinder syringe

 ** They then make a 180 bend on caliper syringe and begin pulling a vacuum 

 and pushing, tapping things along the way until you get most of the air 

 stuck under the syringe piston (clever!)

 ** Then they release clamp on master cylinder and push caliper syringe 

 till you fill master cylinder syringe about half way

 ** Then clamp caliper syringe and begin pulling suction and pressurizing 

 and tapping master cylinder syringe until most bubbles gone

 ** Replace plug on caliper

 ** Top master cylinder and replace plug



 OK, what says you? Stick with Europa system of bleeding, or bicycle 

 technique may have some validity?



 Sincerely

 Ron Parigoris





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=435636#435636

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Europa-List

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