Fluid on my tyre :O

[Grey wolf oz]

Hello team

Pulled up for some gas today,

10 bucks a gallon here in australia :0

There was a little fluid on my tyre as i checked the air pressure,

Dang nabit if pooped a break calliper seal

I’m a bit time poor,,   
Has anyone got a set of front calliper in reasonable condition or rebuilt for sale

Gonna have to rebuild otherwise


Cheers team


Luke

[RonW]

Always facinated with the way aussies describe things. Reminds me of an aussie I met who caught a roomate in a hostel stealing from his backpack, "So, I grabbed him by his neck and started to strangle the blok." I think it was 'blok.' $10 a gallon!!

Anyways, it's probably just as fast to replace the seals. Since you still gotta remove the calipers and refilling the fluid into empty brake lines takes the most time.

[Grey wolf oz]

True,,  i had to vacuum bleed this set last time i did brakes !! 

I need a cylinder extraction tool right ?

[98valk]

you sure its not fork fluid and indeed brake fluid? fork seals leaking is much more common.

[RonW]

I need a cylinder extraction tool right ?


Not necessarily. Er, hydraulic pressure should pop the piston across the room. A leaky seal might reduce that though. Anyways, you're dealing with a leaky seal not of a stuck piston.

Still, place something like a paint stick to stop the piston's trajectory. Both pistons must extend out as much as they're needed to in unison, that is, if you remove only one piston out of its bore, you won't thereon be able to remove the stubborn piston by squeezing the brake lever because hydraulic pressure will escape through the empty bore of the removed piston.

Of course avoid dinging the piston's surface by using a file to clean off the grit (jokingly). I suggest at least 2 cans of brake cleaner to get rid of every last speck of grit before reassembly.

[RonW]

Luke, was as it fork fluid?? 98valk has a point.

[WintrSol]

Easy test for fork oil vs. brake fluid - smell it. They are VERY different.

[Grey wolf oz]

you sure its not fork fluid and indeed brake fluid? fork seals leaking is much more common.

It’s brake,,,,,,,,,    Master cylinder is draining through the calliper

[Grey wolf oz]

I need a cylinder extraction tool right ?


Not necessarily. Er, hydraulic pressure should pop the piston across the room. A leaky seal might reduce that though. Anyways, you're dealing with a leaky seal not of a stuck piston.

Still, place something like a paint stick to stop the piston's trajectory. Both pistons must extend out as much as they're needed to in unison, that is, if you remove only one piston out of its bore, you won't thereon be able to remove the stubborn piston by squeezing the brake lever because hydraulic pressure will escape through the empty bore of the removed piston.

Of course avoid dinging the piston's surface by using a file to clean off the grit (jokingly). I suggest at least 2 cans of brake cleaner to get rid of every last speck of grit before reassembly.

File ??

Why not a 9” grinder ? 

[Grey wolf oz]

Luke, was as it fork fluid?? 98valk has a point.

Very squishy brakes and empty master cylinder res,,,,,,,, 

[RonW]

When replacing brake pads, 'some' people push the pistons back in their bores without polishing them pistons and the grit damages the seals in the process. The pistons are pushed back to make room for new thicker brake pads. A few minutes spent shoe shinning the pistons woulda saved hours. This has never happened to me but only because on my very first brake pad replacement an unheralded technician brought over a can of brake cleaner and told me to buy it and of he's not cleaning the piston that caused his brakes to leak.

[Grey wolf oz]

JOB DONE,,

The first calliper took longer, and hells it takes ages to bleed these

Any one ever heard of a thing called a speed bleeder ?


Valve I believe

Cheers

Luke

[hubcapsc]

I have used and liked speed bleeders for years. There's a particular size for the brakes
and a longer one that works for the clutch. Here's an article by someone else who
likes them and besides all his gushing about them, he includes the part numbers
for both sizes needed for the Valkyrie...

https://www.billanddot.com/brake-bleeding.htm

-Mike

JOB DONE,,

The first calliper took longer, and hells it takes ages to bleed these

Any one ever heard of a thing called a speed bleeder ?


Valve I believe

Cheers

Luke

[mello dude]

JOB DONE,,

The first calliper took longer, and hells it takes ages to bleed these

Any one ever heard of a thing called a speed bleeder ?


Valve I believe

Cheers

Luke

http://speedbleeder.com/bikechart.htm
Alternate......
https://www.motionpro.com/product/08-0143

[Grey wolf oz]

I have used and liked speed bleeders for years. There's a particular size for the brakes
and a longer one that works for the clutch. Here's an article by someone else who
likes them and besides all his gushing about them, he includes the part numbers
for both sizes needed for the Valkyrie...

https://www.billanddot.com/brake-bleeding.htm

-Mike


Thanks mike,

JOB DONE,,

The first calliper took longer, and hells it takes ages to bleed these

Any one ever heard of a thing called a speed bleeder ?


Valve I believe

Cheers

Luke

[Grey wolf oz]

JOB DONE,,

The first calliper took longer, and hells it takes ages to bleed these

Any one ever heard of a thing called a speed bleeder ?


Valve I believe

Cheers



Thanks mello!

Luke

http://speedbleeder.com/bikechart.htm
Alternate......
https://www.motionpro.com/product/08-0143