Suction bleeder help

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player1up

player1up

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Ok so I bought a suction bleeder and am trying to bleed my brakes after a wheel cyl replacement, but the stupid thing is sucking air in around the bleeder valve threads instead of fluid through the wheel cyl. How do I fix that? teflon tape? bailing wire?
Oh, and why would the new bleeder screw be a different size than the one on my old wheel cyl?
 
I bought a mityvac 20 years ago for the same purpose.

Never could get it to work better than a long tube from the bleeder down into a jar with some fluid already in it.
 
Well crap, I thought I was doing something wrong.... I even tried just barely cracking the screw thinking that the threads would seal
 
Wont the cup/hose method have the same problem with air getting in around the threads??

DOH! :angry7:
Hey, anyone want to buy a vacuum bleeder with gauge and cup? :toothy10: used only once! NEARLY BRAND NEW! :lol: :lol:
 
Same exact problem here too.....

I ended up using it just to change the fluid.....made sure all the fluid was flushed and then had an assistant pump for me while I wrenched.
 
player1up said:
Wont the cup/hose method have the same problem with air getting in around the threads??

DOH! :angry7:
Hey, anyone want to buy a vacuum bleeder with gauge and cup? :toothy10: used only once! NEARLY BRAND NEW! :lol: :lol:
Click to expand...

Just crack the screw a 1/2 turn, make sure the hose is below the fluid level, and stroke the brake pedal by hand, waiting for it to return to neutral.

If it's not a new MC, don't go full travel, you'll trash the o-rings by going over the step that gets worn in the MC bore.

Check the reservoir to make sure you don't suck air.
 
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