Speed Bleeders Leaking
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Road Warrior
Joined: Mar 2007
Posts: 1,416
Likes: 11
From: Lorton, VA
Speed Bleeders Leaking
I just installed a set of speed bleeder. The two on the front are leaking a bit. Any ideas? I tried to tighten them down a bit more, but they really did not move much.
I did notice when installing that there was not much pipe dough or compound around the threads.
Thanks.
I did notice when installing that there was not much pipe dough or compound around the threads.
Thanks.
Road Warrior
Joined: Nov 2008
Posts: 1,296
Likes: 3
From: Cheltenham, UK
I had no idea what "speed bleeder's" were when I first read this post so I googled it.
Hydraulics is my specific area of expertise, so please...
1. Do not add any kind of sealing compound to the threads, so are going to create a real mess for yourself. These fittings have a coned front end, that is the sealing surface - NOT the threads! Threads only seal on tapered thread fittings, not parrallel threaded fittings!
Remember, brake fluid is very aggressive towards certain materials, put the wrong gunk in there and it could cost you "large"
2. Do not overtighten these fittings, you will creating a real mess for yourself.
It sounds like..
Either the cone angle in not the same between caliper and fitting, so there is not a good seal surface, or the thread is bottoming out before the seal surface has made contact.
Personally I have no idea why one would want a product like this but I am sure you have done this with good intention and meaning, I would take them out, go back to what you had and call it a day
Hydraulics is my specific area of expertise, so please...
1. Do not add any kind of sealing compound to the threads, so are going to create a real mess for yourself. These fittings have a coned front end, that is the sealing surface - NOT the threads! Threads only seal on tapered thread fittings, not parrallel threaded fittings!
Remember, brake fluid is very aggressive towards certain materials, put the wrong gunk in there and it could cost you "large"
2. Do not overtighten these fittings, you will creating a real mess for yourself.
It sounds like..
Either the cone angle in not the same between caliper and fitting, so there is not a good seal surface, or the thread is bottoming out before the seal surface has made contact.
Personally I have no idea why one would want a product like this but I am sure you have done this with good intention and meaning, I would take them out, go back to what you had and call it a day
Road Warrior
Joined: Nov 2008
Posts: 1,296
Likes: 3
From: Cheltenham, UK
NO - don't do that - please! Look at the sectional view of the product, and look at where the drilling is in to the inlet to the check valve - it is downstream of the threads and after the cone (i.e. between the cone and the base of the threads).
This tells you that the face of the cone is the sealing surface. Doing anything that moves the face of the cone away from the mating face of the caliper means that the drilling is now exposed to the brake fluid so it can free flow out the check valve. this could render your brakes dangerous!
This tells you that the face of the cone is the sealing surface. Doing anything that moves the face of the cone away from the mating face of the caliper means that the drilling is now exposed to the brake fluid so it can free flow out the check valve. this could render your brakes dangerous!
Outstanding HDF Member
Joined: Dec 2007
Posts: 2,803
Likes: 11
From: El Paso, Texas
I just installed a set of speed bleeder. The two on the front are leaking a bit. Any ideas? I tried to tighten them down a bit more, but they really did not move much.
I did notice when installing that there was not much pipe dough or compound around the threads.
Thanks.
I did notice when installing that there was not much pipe dough or compound around the threads.
Thanks.
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I take an Aspirin everyday so my blood is very thing...I am also DIabetic and when i ***** myself i speed bleed...
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Joined: Dec 2007
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From: Bay Area
I had no idea what "speed bleeder's" were when I first read this post so I googled it.
Hydraulics is my specific area of expertise, so please...
1. Do not add any kind of sealing compound to the threads, so are going to create a real mess for yourself. These fittings have a coned front end, that is the sealing surface - NOT the threads! Threads only seal on tapered thread fittings, not parrallel threaded fittings!
Remember, brake fluid is very aggressive towards certain materials, put the wrong gunk in there and it could cost you "large"
2. Do not overtighten these fittings, you will creating a real mess for yourself.
It sounds like..
Either the cone angle in not the same between caliper and fitting, so there is not a good seal surface, or the thread is bottoming out before the seal surface has made contact.
Personally I have no idea why one would want a product like this but I am sure you have done this with good intention and meaning, I would take them out, go back to what you had and call it a day
Hydraulics is my specific area of expertise, so please...
1. Do not add any kind of sealing compound to the threads, so are going to create a real mess for yourself. These fittings have a coned front end, that is the sealing surface - NOT the threads! Threads only seal on tapered thread fittings, not parrallel threaded fittings!
Remember, brake fluid is very aggressive towards certain materials, put the wrong gunk in there and it could cost you "large"
2. Do not overtighten these fittings, you will creating a real mess for yourself.
It sounds like..
Either the cone angle in not the same between caliper and fitting, so there is not a good seal surface, or the thread is bottoming out before the seal surface has made contact.
Personally I have no idea why one would want a product like this but I am sure you have done this with good intention and meaning, I would take them out, go back to what you had and call it a day
Outstanding HDF Member
Joined: Aug 2007
Posts: 2,836
Likes: 1
From: 2000 Softail FXST
There is a sealant sold by the Speed Bleeder company, http://speedbleeder.zoovy.com/c=U93O...T/Sealant.html If you have the right sized bleeder it shouldn't leak. Reread the installation instructions and make sure you didn't skip a step. The only problem I encountered with installation was a tight fit and the blleeder has worked great. Good Luck.