EvilRufusKay Posted September 8, 2003 Share Posted September 8, 2003 Hey Guys, my clutch went last night and I suspect my slave cylinder but I don't what type of fluid to use to check the leak. I know there are different grades of fluid and I know that some systems actually use brake fluid. I have a 75 280 and am assuming the slave is a Datsun type. The 350 was in the car when I bought it but I am sure it was a manual from the factory. Does anyone know if the swap calls for a different type of slave cylinder to be used? The clutch master is the Datsun type. Thanks for the help!!! Quote Link to comment Share on other sites More sharing options...
jt1 Posted September 8, 2003 Share Posted September 8, 2003 Regular DOT 3 brake fluid is fine. John Quote Link to comment Share on other sites More sharing options...
auxilary Posted September 8, 2003 Share Posted September 8, 2003 dot 3 brake fluid Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted September 9, 2003 Author Share Posted September 9, 2003 Thanks!! I actually found out from a haynes manual. My slave is a Datsun type although it has a slightly different body design. Having trouble getting a pedal though. Any tips on bleeding the slave? Thanks Again Quote Link to comment Share on other sites More sharing options...
JoeinCA Posted September 9, 2003 Share Posted September 9, 2003 if you have to bleed it by yourself and you do not have a proper brake bleed can, or one way valve, you can get a 3-4 foot long 2X4 and push the pedal to the floor with it and wedge the seat against it, then go under the car and put a rubber hose to your bleed screw, run the hose to a jar with brake fluid in it, making sure the end of the hose is submerged. loosen the bleeder nut thingamabobber ( i love that word) then tighten it again. go into the car and release the seat, and 2X4. Then push the pedal down again with the 2X4 and the seat, loosen bleed nut, tighten, release pedal, engage pedal, loosen, tighten, release, engage.... a clear rubber hose works best, you will see the bubbles come out of the system. bleed it 'till it's clean and free of air. Joe. Quote Link to comment Share on other sites More sharing options...
Guest 240hybrid Posted September 9, 2003 Share Posted September 9, 2003 I always liked the "Mity-vac" tool. Its a brakes/clutch bleeder(by yourself), can be used to check vacuum, it even does a couple other task I can't remember off hand. I picked mine up at Autozone for $26 and change. Very useful and easy to use tool. Would always recommend one if you plan on doing your own brakes and your friends/family don't want to sit in the car and pump the brakes or clutch for you. Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted September 10, 2003 Author Share Posted September 10, 2003 I actually had my brother helping me bleed the slave and the only thing I did diferently was not have a hose submerged in a jar. I know that is the method used to bleed a master,(run a hose from the zerks back to the master) but do you need to do it for a slave? You would not do this for say calipers. The system is so small, the master, about a foot of hard line then the flex hose. It seems to reason you should be able to let it gravity bleed and almost be fine but I get almost no pedal. A bit at the bottom but that is it. Quote Link to comment Share on other sites More sharing options...
JoeinCA Posted September 10, 2003 Share Posted September 10, 2003 do you have the correct master cylinder for the slave? did you torque the flywheel bolts? bleed it with a hose on it submerged in brake fluid.... you dont want any air in the line. joe Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted September 10, 2003 Author Share Posted September 10, 2003 How about this... I was having my brother pump then depress and hold, like doing brakes. How a bout loosening the bleeder then pushing the pedal down? Retighten fitting. That goes against what I was taught to do for brakes but mabe???????Just maybe. I will try a submerged hose as well. It's about 11:15 here... maybe I should wake the wife for her foot. Quote Link to comment Share on other sites More sharing options...
JoeinCA Posted September 10, 2003 Share Posted September 10, 2003 That would make her real happy... heh... When you dont have the hose on there, there is no pressure in the line, so all that happens is the fluid flows through, and air can get in at the fitting. My cluth was the only thing that i have successfully bled more than once! (I have got to bleed my brakes again!) Joe Quote Link to comment Share on other sites More sharing options...
EvilRufusKay Posted September 12, 2003 Author Share Posted September 12, 2003 Well I got my pedal back but it is still not the same as it was prior to the slave blowout. I am thinking I need to bleed the master. I get small air bubbles out of the master when I have someone pumping the clutch. There is a small flat head screw in the bottom of the casting of the master. Does anyone know if this is intended to be used as a bleeder? Quote Link to comment Share on other sites More sharing options...
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