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Toyota clutch master cyl bleeding
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<blockquote data-quote="nick c" data-source="post: 1543975" data-attributes="member: 16567"><p>I give up, I posted on Pirate and I'm posting here. Need some help figuring this out. </p><p></p><p>It's Tuesday so I'm taking my chances, need pointers on getting my clutch master cylinder bled. Apologies for the long post, but wanted to get as many details as what I've tried out there.</p><p></p><p>85 4runner, 22re/5speed</p><p></p><p>Pedal has been soft,and my firewall paint inside the cab was peeling. Figured my master cyl was leaking (being low on fluid was also a tip). Picked up a new master and slave, installed them and had a friend help me bleed the system.</p><p></p><p>I did bench bleed the master.</p><p></p><p>using traditional techniques of him pumping the pedal while I was at the bleeder didn't work. I didn't get any fluid.</p><p></p><p>So I tried my POS 1 man bleeder kit from Harbor Frieght, it didn't work. So I borrowed a friend's, MightyVac. Still nothing.</p><p></p><p>I tried letting it gravity bleed for a few days since I didn't have time to screw with it during the work week. That didn't work.</p><p></p><p>So I started pulling fittings apart and seeing where I could get suction with the MightyVac, and where it was falling off. </p><p></p><p>If I had the MightyVac on the slave bleeder, I didn't get suction past the rubber hose at the frame/firewall connection. So I replaced the rubber hose with a new one from RockAuto.</p><p></p><p>Still can't get it too bleed, but now when I put the mightyvac on the slave bleeder, and undo the fitting at the Master Cyl, I get suction all the way up. And I did manage to pull some fluid through the line when I did that test. So I put it all back together and tried again.</p><p></p><p>Still nothing, this time I would pump the mighty vac and let it hold around 20 psi of suction (it would slowly leak down over a minute or so), but I'd continue to pump. Did that for about 15 minutes to maintain 20 psi of suction and didn't get a drop of fluid.</p><p></p><p>Also, when I had the line disconnected from the Master Cyl, I had my wife pump the pedal with my finger over the hole in the master. It had pressure as it pushed fluid past my finger. </p><p></p><p></p><p>I also tried putting a block on the pedal to hold it to the floor while I pumped on the mighty vac.</p><p></p><p>And for reference I have the adjuster on the pedal/rod set to about 1/4" till the end of the rod.</p><p></p><p>Any advice, pointers, am I just that big of an idiot?</p><p></p><p>I've bled plenty of brakes with out issue, and 1 or 2 other clutch masters, but this one has me beat.</p></blockquote><p></p>
[QUOTE="nick c, post: 1543975, member: 16567"] I give up, I posted on Pirate and I'm posting here. Need some help figuring this out. It's Tuesday so I'm taking my chances, need pointers on getting my clutch master cylinder bled. Apologies for the long post, but wanted to get as many details as what I've tried out there. 85 4runner, 22re/5speed Pedal has been soft,and my firewall paint inside the cab was peeling. Figured my master cyl was leaking (being low on fluid was also a tip). Picked up a new master and slave, installed them and had a friend help me bleed the system. I did bench bleed the master. using traditional techniques of him pumping the pedal while I was at the bleeder didn't work. I didn't get any fluid. So I tried my POS 1 man bleeder kit from Harbor Frieght, it didn't work. So I borrowed a friend's, MightyVac. Still nothing. I tried letting it gravity bleed for a few days since I didn't have time to screw with it during the work week. That didn't work. So I started pulling fittings apart and seeing where I could get suction with the MightyVac, and where it was falling off. If I had the MightyVac on the slave bleeder, I didn't get suction past the rubber hose at the frame/firewall connection. So I replaced the rubber hose with a new one from RockAuto. Still can't get it too bleed, but now when I put the mightyvac on the slave bleeder, and undo the fitting at the Master Cyl, I get suction all the way up. And I did manage to pull some fluid through the line when I did that test. So I put it all back together and tried again. Still nothing, this time I would pump the mighty vac and let it hold around 20 psi of suction (it would slowly leak down over a minute or so), but I'd continue to pump. Did that for about 15 minutes to maintain 20 psi of suction and didn't get a drop of fluid. Also, when I had the line disconnected from the Master Cyl, I had my wife pump the pedal with my finger over the hole in the master. It had pressure as it pushed fluid past my finger. I also tried putting a block on the pedal to hold it to the floor while I pumped on the mighty vac. And for reference I have the adjuster on the pedal/rod set to about 1/4" till the end of the rod. Any advice, pointers, am I just that big of an idiot? I've bled plenty of brakes with out issue, and 1 or 2 other clutch masters, but this one has me beat. [/QUOTE]
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