JXV Posted October 13, 2016 Posted October 13, 2016 i was told somethings wrong with the lever,i pump the brake then it only works for 5 secs,lever can be pulled flat onto the bars with no force on the rotorAah ok cool.....but no fluid leaking from the brake lever? There are two seals in the lever. The outer one prevents fluid leaking out where the actuating rod goes in to push on the master piston - in your brakes, this one is still intact. The second seal is the main piston seal. This makes a seal between the piston and master cylinder and contains the pressure generated when you pull on the lever. Your symptoms tell me this seal is faulty or the surface of the master cylinder is damaged (by scoring or corrosion). When you press the lever, fluid is escaping around the seal back to the reservoir and the lever slowly sinks to the handlebar..... When you release the brake lever it can also allow air to get sucked in ..... The lucky part about Avid brakes is that you can get a lever rebuild kit that contains new seals. It is within your budget and will fix the problem provided that the cylinder bore is not damaged. Your LBS should be able to fix this for you but if you have the tools and good with your hands it can be done as a DIY job. The manuals are available on SRAM website. You will also need an Avid bleed kit and some DOT4 brake fluid. Sent from my SM-G935F using Tapatalk
Mongooser Posted October 13, 2016 Author Posted October 13, 2016 Aah ok cool.....but no fluid leaking from the brake lever? There are two seals in the lever. The outer one prevents fluid leaking out where the actuating rod goes in to push on the master piston - in your brakes, this one is still intact. The second seal is the main piston seal. This makes a seal between the piston and master cylinder and contains the pressure generated when you pull on the lever. Your symptoms tell me this seal is faulty or the surface of the master cylinder is damaged (by scoring or corrosion). When you press the lever, fluid is escaping around the seal back to the reservoir and the lever slowly sinks to the handlebar..... When you release the brake lever it can also allow air to get sucked in ..... The lucky part about Avid brakes is that you can get a lever rebuild kit that contains new seals. It is within your budget and will fix the problem provided that the cylinder bore is not damaged. Your LBS should be able to fix this for you but if you have the tools and good with your hands it can be done as a DIY job. The manuals are available on SRAM website. You will also need an Avid bleed kit and some DOT4 brake fluid. Sent from my SM-G935F using TapatalkHow much would 2 lever build kits be? Sent from my GT-I8190 using Tapatalk
JXV Posted October 13, 2016 Posted October 13, 2016 How much would 2 lever build kits be? Sent from my GT-I8190 using TapatalkDunno. Ask your LBS to quote you. I bought some for a friend's Elixir CR50 that I fixed last year. Still have one kit I didn't use. will check the price when I get home. Sent from my SM-G935F using Tapatalk
Mongooser Posted October 13, 2016 Author Posted October 13, 2016 Dunno. Ask your LBS to quote you. I bought some for a friend's Elixir CR50 that I fixed last year. Still have one kit I didn't use. will check the price when I get home. Sent from my SM-G935F using TapatalkOk thanks [emoji106] Sent from my GT-I8190 using Tapatalk
CdT85 Posted October 14, 2016 Posted October 14, 2016 How much would 2 lever build kits be? Sent from my GT-I8190 using Tapatalk I have a elixir 5 lever bladder assembly you can have. Replaced both after my rear lever failed. The front was still fine, replaced the front just for the sake of replacing. You will just need the retaining circlip, broke mine during the disassembly. But if someone rebuilds yours, they just have to take special care to be able to reuse your circlip Edit:If I remember correctly, I paid about R280 for a lever rebuild kit at Revolution Cycles, but don't quote me on that. Thats if you prefer to go for a new rebuild kit.
Mongooser Posted October 14, 2016 Author Posted October 14, 2016 i would appreciate that ,the mechanic said he thought my bladder was stuffed since he couldn't get fluid in properly could that be why theres no power also?
CdT85 Posted October 14, 2016 Posted October 14, 2016 i would appreciate that ,the mechanic said he thought my bladder was stuffed since he couldn't get fluid in properly could that be why theres no power also? Will bring it to work with me on Monday. Work in Muizenberg (I see you are listed as staying in plumstead?), so can meet up after work. From what you say, I believe a new bladder will fix your lever.If the bladder is damaged in any way, there is no way to actuate the caliper pistons, hence the loss of power.
Odinson Posted October 14, 2016 Posted October 14, 2016 Will bring it to work with me on Monday. Work in Muizenberg (I see you are listed as staying in plumstead?), so can meet up after work. From what you say, I believe a new bladder will fix your lever.If the bladder is damaged in any way, there is no way to actuate the caliper pistons, hence the loss of power. Just make sure one of his folks is present. Monsieur Mongooser is still a laaitie.
CdT85 Posted October 14, 2016 Posted October 14, 2016 Just make sure one of his folks is present. Monsieur Mongooser is still a laaitie. Valid point mate
Mongooser Posted October 14, 2016 Author Posted October 14, 2016 Valid point mate thanks so much man!i can get one of parents to arrange it all
CdT85 Posted October 14, 2016 Posted October 14, 2016 thanks so much man!i can get one of parents to arrange it all Perfect
Pure Savage Posted October 14, 2016 Posted October 14, 2016 Just make sure one of his folks is present. Monsieur Mongooser is still a laaitie. This should be applied to more hubbers than just Laaities... Someone should also tell the Laaite that there is no 6 month warranty, have a look at the part when picking it up.
Mongooser Posted October 14, 2016 Author Posted October 14, 2016 This should be applied to more hubbers than just Laaities... Someone should also tell the Laaite that there is no 6 month warranty, have a look at the part when picking it up. i have bought 3 bikes and multiple parts this year and learnt the no warranty the hard way lol
Mongooser Posted October 14, 2016 Author Posted October 14, 2016 Perfect i'll contact you tonight going riding for the afternoon
Mongooser Posted October 14, 2016 Author Posted October 14, 2016 Perfect could you pm me your number please
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