clutch doesn't work after changing chain
04-15-2011, 09:44 PM
#1
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Squid
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clutch doesn't work after changing chain
So i changed my chain and sprockets. put the slave cylinder back on, never touched except to take it off and put it back on. pulled the clutch lever and it gave no resistance. well, me and my buddy fiddled around a bit and have determined that the master cylinder took a crap it wont suck down any fluid put into it, barely puts pressure through the lines.
the question is did i or am I doing something wrong or is this just coincidental bad luck.
the question is did i or am I doing something wrong or is this just coincidental bad luck.
04-15-2011, 10:04 PM
#3
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Squid
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tried, but the master seems not to be giving any pressure and sucking anything from the reservoir. i push in the slave and fluid sprays out the bleeder, i close that and the system pressurizes and goes shooting back out the reservoir of the master (in my friends face lol).
04-15-2011, 10:35 PM
#4
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tried, but the master seems not to be giving any pressure and sucking anything from the reservoir. i push in the slave and fluid sprays out the bleeder, i close that and the system pressurizes and goes shooting back out the reservoir of the master (in my friends face lol).
04-16-2011, 06:51 AM
#7
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Zip tie-ing the lever won't work at this point. What happened is that the slave cylinder worked its way out when you had the cover off to change the chain. This drained the reservoir and sucked air in. If you have a mity-vac you can bleed the system by pushing fluid UP from the slave. Many people don't realize you can do this with a Mity-vac but you can. You basically fill the cup with fluid and pressurize the cup to push fluid in. Careful you don't pop a line off the setup and get fluid everywhere. Brake fluid and paint don't mix.
If you don't have a mity-vac you can still bleed the clutch the old fashioned way. It takes a while though, since clutch spring pressure is the maximum pressure you'll generate on the system to force fluid out the slave fitting.
If you don't have a mity-vac you can still bleed the clutch the old fashioned way. It takes a while though, since clutch spring pressure is the maximum pressure you'll generate on the system to force fluid out the slave fitting.
04-16-2011, 11:37 AM
#8
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Squid
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Zip tie-ing the lever won't work at this point. What happened is that the slave cylinder worked its way out when you had the cover off to change the chain. This drained the reservoir and sucked air in. If you have a mity-vac you can bleed the system by pushing fluid UP from the slave. Many people don't realize you can do this with a Mity-vac but you can. You basically fill the cup with fluid and pressurize the cup to push fluid in. Careful you don't pop a line off the setup and get fluid everywhere. Brake fluid and paint don't mix.
If you don't have a mity-vac you can still bleed the clutch the old fashioned way. It takes a while though, since clutch spring pressure is the maximum pressure you'll generate on the system to force fluid out the slave fitting.
If you don't have a mity-vac you can still bleed the clutch the old fashioned way. It takes a while though, since clutch spring pressure is the maximum pressure you'll generate on the system to force fluid out the slave fitting.
Last edited by DriftingMustang; 04-16-2011 at 11:40 AM.
04-16-2011, 02:00 PM
#10
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04-16-2011, 08:15 PM
#11
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Once air gets in the master it's tough to get back out. You just have to keep squeezing that lever over and over, bleed, repeat. But you have to do it fairly quick to get the air to actually move in the line rather than rise back to the top. Try wiggling the clutch lever rapidly before you start to try to get some of that air to come through the reservoir.
04-16-2011, 08:28 PM
#12
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ya, in theory the air wont be under pressure within the line and be able to rise to the resivoir (sp?) and escape. i do it every time i bleed anything (brakes) and have never had a problem.
04-17-2011, 07:21 PM
#14
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It will, but it's easier to go in from the bottom. Just don't overflow the res. It's pretty small. The main issue here is the relatively small force from the clutch springs acting on the system. If it were any brake system it'd be easy.
04-17-2011, 08:00 PM
#15
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I've heard to not to this... the reason being that brake fluid is sensitive to moisture, and if you leave it in the open it will suck moisture from the air and become less effective. Especially in Florida.
04-17-2011, 08:24 PM
#16
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brake fluid is very sensitive to moisture. once you open a bottle of brake fluid its bad. however like i said ive never had any problems with this. also im not completely taking the cap off, just unscrew it all the way off and then tight just a tad so its more or less just sitting on top.
04-17-2011, 11:00 PM
#17
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brake fluid is very sensitive to moisture. once you open a bottle of brake fluid its bad. however like i said ive never had any problems with this. also im not completely taking the cap off, just unscrew it all the way off and then tight just a tad so its more or less just sitting on top.
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