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Speed Bleeders - Thread Size?
Thread Starter
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
Speed Bleeders - Thread Size?
Does anybody know the thread specs (size, pitch) of the bleeder screws on C3 brake calipers? My parts supplier needs to know to order them.
Thanks,
Pete
Thanks,
Pete
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
You can get that at any local Autozone, Advance, or Oreilly. Maybe even Napa. The part number from Autozone is:
#12704
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
They work like normal bleeders in that they are tightened to seal, but loosened to bleed. The difference is that these bleeders have a spring loaded check valve ball, that will let fluid out, but no air back in. Also, the fluid can only get out when pressure is applied so just loosening the bleeder won't let fluid out unless you're pressing on the brake pedal.
That is what makes using them so good for a single person. You can open the valve, attach a tube to the end and a catch bottle, and go stomp on the pedal a few times. Check the fluid level in the master and go pump again.
Do that about twenty times per caliper, and you're guaranteed to not only get all the air out, but you refresh the fluid in the lines...which needs to be done every year or so.
Thread Starter
Drifting
Joined: Apr 2007
Posts: 1,970
Likes: 45
From: Cameron Park CA
What I Have Learned About Speed Bleeders
I learned a couple of things about speed bleeders from this thread that I thought I'd sumarize and share with you.
The thread size is 5/16 X 24 NF. The bleeders in my new "correct" master cylinder are the same size.
The part number 12704 seems to be generic to all common brands. I have seen them under the HELP! label by Motormite, and by the Domman company.
Thanks for the replies!
Pete
The thread size is 5/16 X 24 NF. The bleeders in my new "correct" master cylinder are the same size.
The part number 12704 seems to be generic to all common brands. I have seen them under the HELP! label by Motormite, and by the Domman company.
Thanks for the replies!
Pete
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Racer
Joined: Apr 2004
Posts: 370
Likes: 0
New England Events Coordinator
One more question
They work like normal bleeders in that they are tightened to seal, but loosened to bleed. The difference is that these bleeders have a spring loaded check valve ball, that will let fluid out, but no air back in. Also, the fluid can only get out when pressure is applied so just loosening the bleeder won't let fluid out unless you're pressing on the brake pedal.
That is what makes using them so good for a single person. You can open the valve, attach a tube to the end and a catch bottle, and go stomp on the pedal a few times. Check the fluid level in the master and go pump again.
Do that about twenty times per caliper, and you're guaranteed to not only get all the air out, but you refresh the fluid in the lines...which needs to be done every year or so.
That is what makes using them so good for a single person. You can open the valve, attach a tube to the end and a catch bottle, and go stomp on the pedal a few times. Check the fluid level in the master and go pump again.
Do that about twenty times per caliper, and you're guaranteed to not only get all the air out, but you refresh the fluid in the lines...which needs to be done every year or so.
Instructor
Joined: Jul 2007
Posts: 213
Likes: 0
From: Nowhere Mars (Southern Indiana)
I know when i've bled my brakes previously if i was not quick with the pedal and made sure the MC stayed full i didn't have to have the crap on 100%. I don't have any vette experiance though...
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
No you don't have to have the lid on the master to pump. Go slow, or it 'can' gurgle over the side.
