As Ive said in my fork rebuild thread, I'm getting air in my 2010 Vegas rear brake system.
Just re recap...I noticed last week that my rear brake pedal was getting spongy and innefective.
Thinking it was the fault of old brake fluid I flush bled new fluid through the system using poor man's speed-bleeder of a hose over the bleeder valve suspended in a jar of brake fluid and pumped it through till the old fluid was replaced with new Dot4 fluid.
Went on a 350 mile Victory /Indian riders run and tried to use my front brakes a lot more than I do , but by the end of the day when I got home I had to bleed the rear brakes again.
Every time I bleed them theres air, not a lot but enough to make the rear brake largely innefective.
A bit of history,.I bought the bike 18 months ago with 14,400kms on the clock, at a shade under 40,000kms I replaced the rear pads with LYNDALS pads, and Im extremely happy with them.
Now at 68,400 kms theres still plenty of pad left, but the hydraulic system is making air somewhere.
As I ride every day I end up bleeding it every day.
It responds well to uncapping the reservoir and cracking the bleeder a 1/4 turn and just releasing the air, let it dribble for a minute, topping up the reservoir, then lock the bleeder, tap the pedal then crack the bleeder again and the pedal is good again once done up.
Today I rode to my local brake service shop who I've dealt with for the last 30 years, the boss there has over 50 years experience in brakes and has assisted me in getting many older vehicles stopping well for their age.
There's a pipe from the reservoir to the master that has several crimped joins in it, there was a suggestion on here that one of those joins could be letting in air but not leaking outwardly.
I brought this up with my brake man, Steve, he replied if the air was getting in there that it would rise to the top of the line and out through the reservoir...air rises..makes sense.
Steve thinks that cos Im so easily and instantly getting air at the rear caliper bleeder valve when I bleed it that the problem lies inside the caliper at the seals, he says it could be sucking air in there and not necessarily leaking fluid.
Also that if it was the master at fault that bleeding the line at the master would show air there.
I rang the local dealer/workshop today and the mechanic can find no parts listing for a brake caliper rebuild kit.
He is going to investigate and get back to me.
It'd be a sad state of affairs if one had to buy a new caliper as opposed to renewing the seals inside.
Just re recap...I noticed last week that my rear brake pedal was getting spongy and innefective.
Thinking it was the fault of old brake fluid I flush bled new fluid through the system using poor man's speed-bleeder of a hose over the bleeder valve suspended in a jar of brake fluid and pumped it through till the old fluid was replaced with new Dot4 fluid.
Went on a 350 mile Victory /Indian riders run and tried to use my front brakes a lot more than I do , but by the end of the day when I got home I had to bleed the rear brakes again.
Every time I bleed them theres air, not a lot but enough to make the rear brake largely innefective.
A bit of history,.I bought the bike 18 months ago with 14,400kms on the clock, at a shade under 40,000kms I replaced the rear pads with LYNDALS pads, and Im extremely happy with them.
Now at 68,400 kms theres still plenty of pad left, but the hydraulic system is making air somewhere.
As I ride every day I end up bleeding it every day.
It responds well to uncapping the reservoir and cracking the bleeder a 1/4 turn and just releasing the air, let it dribble for a minute, topping up the reservoir, then lock the bleeder, tap the pedal then crack the bleeder again and the pedal is good again once done up.
Today I rode to my local brake service shop who I've dealt with for the last 30 years, the boss there has over 50 years experience in brakes and has assisted me in getting many older vehicles stopping well for their age.
There's a pipe from the reservoir to the master that has several crimped joins in it, there was a suggestion on here that one of those joins could be letting in air but not leaking outwardly.
I brought this up with my brake man, Steve, he replied if the air was getting in there that it would rise to the top of the line and out through the reservoir...air rises..makes sense.
Steve thinks that cos Im so easily and instantly getting air at the rear caliper bleeder valve when I bleed it that the problem lies inside the caliper at the seals, he says it could be sucking air in there and not necessarily leaking fluid.
Also that if it was the master at fault that bleeding the line at the master would show air there.
I rang the local dealer/workshop today and the mechanic can find no parts listing for a brake caliper rebuild kit.
He is going to investigate and get back to me.
It'd be a sad state of affairs if one had to buy a new caliper as opposed to renewing the seals inside.