Shouldn't there be activity in clutch master?


Information and questions on GL1200 Goldwings (1984-1987)
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twocams
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Shouldn't there be activity in clutch master?

Postby twocams » Mon Mar 21, 2016 6:48 pm



I rebuilt the master /slave clutch. Had pressure at master while banjo bolt is out, nice fluid pressure. Filled the slave and hose with fluid. Been bleeding the slave for hours, still getting air bubbles out. There is no activity at all in the master cylinder. No squirting no bubbles, nada. Fluid at same level in master. Now I have read 10 thoughts on this on forum. I must be doing something wrong or master has a problem. Was working before just dirty funky in side both. May take the master off tomorrow and turn up to get more fluid into the hose. Any good or bright Ides out there? :idea:

twocams



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Rednaxs60
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Re: Shouldn't there be activity in clutch master?

Postby Rednaxs60 » Mon Mar 21, 2016 8:49 pm

Can't help you with this one, you beat me to doing this. Will be watching to see how you resolve the issue.

However, I did bleed the system, and clean the clutch master in situ. After all this installed a speed bleeder on the slave. Evacuated the fluid, installed the speed bleeder, purged and filled the lines with a vacuum, pump then finished off with the speed bleeder. Had no issues to date.

Interesting that you are getting air out, but no fluid flow. Will think on this for a bit.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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twocams
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Re: Shouldn't there be activity in clutch master?

Postby twocams » Mon Mar 21, 2016 10:25 pm

Im getting some fluid flow....dribbles. But must be just coming from the hose to master, not from the master its self.

twocams

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oldishwinger
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Re: Shouldn't there be activity in clutch master?

Postby oldishwinger » Tue Mar 22, 2016 7:28 pm

if the system has been empty, when refilling, the slave cylinder can get an air blockage, that is really hard to shift. this will dribble a bit of oil around but remove bleeder completely from the slave cylinder, and pump the lever until nothing but oil comes out. (keep the master filled) then replace the bleeder and bleed normally. worked for me.

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twocams
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Re: Shouldn't there be activity in clutch master?

Postby twocams » Tue Mar 22, 2016 10:03 pm

Thanks oldish,
I got my mityvac working, it wouldnt hold a vacuum yesterday. Im going to bleed some more tomorrow. If it dont work right soon Im gonna take the master off and take it apart. it looked good inside when I had it apart. But maybe one of the new seals turned inside out?

twocams

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oldishwinger
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Re: Shouldn't there be activity in clutch master?

Postby oldishwinger » Tue Mar 22, 2016 10:31 pm

ok, yep you have put a new kit in? and checked the return hole? if you have it is real easy to put a new seal on the wrong way for sure.

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geraldm
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Re: Shouldn't there be activity in clutch master?

Postby geraldm » Tue Mar 22, 2016 10:38 pm

there is probably a air bubble in the master . the pin hole in the bottom of the master sometimes will not let the air out nor will it let the oil in to start the master pumping because the air stops it . Its air locked . you might want to try a small needle inserted into the hole in bottom of master and suck the air out , I;ve never tried it but me thinks it will work for you . when I did my front forks The handle bars ended up hanging upside and it took for ever finally a tiny little bubble then a little more then it started to bleed the air out ,, it was almost like foam for a few pumps but cleared up and it works great now ,, just an air bubble ;)

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twocams
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Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Shouldn't there be activity in clutch master?

Postby twocams » Tue Mar 22, 2016 11:33 pm

Never heard of that one. Ill see about that little hole being plugged or something.

twocams

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oldishwinger
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Re: Shouldn't there be activity in clutch master?

Postby oldishwinger » Tue Mar 22, 2016 11:53 pm

twocams wrote:Never heard of that one. Ill see about that little hole being plugged or something.

twocams


yep thats the return hole, it is under a small metal cover, another way to clear the hole, is too use a straw with brake spray cleaner, it wont leave any residue. to make sure its clear though it pays to pull the piston and seals out again.




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