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MG MGB Technical - Bleeding Brakes
|Like many others, I had trouble refitting the dreaded E-clip on a replacement rear brake cylinder. The solution as already posted was to use a 5/8 circlip - quick and secure. Many posters discuss alternate ways of bleeding brakes single handed. The method I picked up here years ago is really simple, effective and low cost - having just used it again this weekend I thought that I would mention it again. Take a piece of neoprene tube that is a tights fit over the bleed nipple, close one end with a tight fitting screw and make a small slit in the tube with a razor close to the sealed end. Submerge this end in a bottle with brake fluid and it acts as an effective non-return valve when pumping the brakes. After a period of buble free flow in the tube, tighten bleed nipple and move to the next wheel. I now have a hard pedal after a few minutes of bleeding.|
Looking forward to warmenr weather in Sothern Ontario!
|On re-reading, my apologies for the lack of spell check!|
|Berry, nice trick. I plan to use same on my brakes here shortly. I also have a 73B, in the process of restoring. Brakes and carbs next.|
|Barry, I came in last night having spent hours trying to shift air in the lines with a 1-man pressure kit. I saw your tip and decided to give it one more go. It worked a treat and allowed me to get the car sorted for morning. Thanks!|
|Is this 1-man job? How can you pump the brakes and at same time undo/tight the neeple?|
pls explain the procedure.
|Thats the point of this device. All that can be sucked back is fluid so you just leave the nipple open.|
Some people have identified an after-market nipple that has a built in valve that permits fluid release under pressure but prevents reverse flow whilst the nipple is still open. This home made arrangement essentially duplicates this same function - it prevents backflow until the nipple has been closed.
I have them on my A and they work well.
|I have them on my B and I concur. They work very well - much better than my wife at the pedal!|
|I too can vouch for Speedbleeders.|
|These look good, what size did you use for the MGB? I've have a 67 MGB GT.|
Much obliged. Please provide the part number for the A, and also the same if you used it on the clutch slave cylinder.
I am at work and don't have the info handy. What I did was to take an old bleeder in and had the shop match it. Actually, I have B discs on front so different sizes front and rear. And I think the clutch bleeder MAY be different.
If you want me to dig deeper and try to find the invoice send me an email.
|If you contact anyone at speedbleeders.com, they KNOW the correct sizes for the B. I just installed a set a few weeks ago. There were no part numbers on the bags. I bought them on Ebay, and they threw in a "free" clutch bleeder.|
|Where have you guys found tubing that would work? I went to Lowe's yesterday and all that I could find was 1/4" vinyl tubing (seems to big to make a tight fit on the bleed nipples).|
|i got a tube from compresssed air spares dealers . 6mm dia will do.|
|A less obvious source for the tubing is your local petstore: the tubing used for aerating (spelling?..putting air into) fishtanks costs next to nothing and is nicely flexible.|
It also seems resistant to brakefluid, I have been using the same piece for 2 years.
|Thanks Alfredo and Rufus.|
I ended up going to a pet store as one is so close. Found a tube that worked perfectly for the back bleeders and was cheap ($2 for 6 ft).
|I've been fussy with bleeding my brakes with the 1 man suction fisture and still not satisfied with the brake pedal being soft and still acting as if the is air. I am going to try this little trick here and see if it's more successful. Sounds like a good system.|
Where do people get the Sppedbleeders other than EBay?
|Try Advance or Autozone for Speedbleeders.|
I had never heard about using a 5/8" circlip to hold the rear wheel cylinders on. Good idea though. I'll be doing this on my next brake job. It always takes me a while to get the E clip down over the edge of the wheel cylinder.
This thread was discussed between 02/05/2005 and 23/05/2005
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