brakes and rain

[metalguru]

Still sounds like master cylinder fault there.

Just saying!

[Sin_Tiger]

Hope it doesn't rain again 

[Bixxer Bob]

Still sounds like master cylinder fault there.

Just saying!

If it was just air surely there'd be some feel?  I would hate for you to find out the hard way Rybes..

[rybes]

well it would appear that tmora im gunna take the master cylinder off n have a good look n see whats in there. imguessin the seals are still gunna be good (?) so what am i lookin for inside there or will it stand out when i look inside ?

[Bixxer Bob]

Its a long time since I did one so MG'LL probably have more recent info but, working from memory, take the master cylinder cover off and drain some of the fluid till its just covering the valve.  Now when you pull the lever, if the cylinder is leaking you'll see/hear fluid squirting past the seal.  Hope that helps!

[rybes]

i can say now that when ya look into the top of the master cylnder you see 2 holes. when i squeeze the lever fluid comes out of the hole on the left. squirts up as if its been in a water pistol. im guessin thats what you mean ?

[Bixxer Bob]

Yup....  that's supposed to be going down the hose.

I love the way Mustang's standing off watching us pick through this instead of wading in and spoon feeding us the answer 

That's how ya learn tho   

[rybes]

i did think bout that mustangs lack of participation. was thinkin he was on holiday.

well got the cylinder off and took apart n had a look and there seems to be a patch of unshiney black stuff in there. not sure if its corrosion or not. tried cleanin it off with methanol and wire wool but its not shiftin so im guessin its corrosion of some kind.

so now ive gotta find a new  cylinder n hope it was that.

[Mustang]

Yup....  that's supposed to be going down the hose.

I love the way Mustang's standing off watching us pick through this instead of wading in and spoon feeding us the answer 

That's how ya learn tho   

[metalguru]

i did think bout that mustangs lack of participation. was thinkin he was on holiday.

well got the cylinder off and took apart n had a look and there seems to be a patch of unshiney black stuff in there. not sure if its corrosion or not. tried cleanin it off with methanol and wire wool but its not shiftin so im guessin its corrosion of some kind.

so now ive gotta find a new  cylinder n hope it was that.

That will be what is left of the seal and it will be sucking air passed it.

Brake fluid is hygroscopic which means it will absorb water and in this case it looks like it has done its job.
The water condenses and makes a puddle, the oxygen content of the water produces oxidisation of the metal in the bore causing corrosion  and a rough area results hence wiping the seal out.

Solution is either a good secondhand/new m/cyl or hone the old one till clean but not too hard as will become oversize.

[Mustang]

i've lost track if it was an ebay master you are using or not but if it was ............THATS PROBABLY WHY IT WAS ON EBAY . it's a good way to get rid of your stuff that doesn't work any more. thats how a lot of ebay sellers operate

[rybes]

theres another master cylinder on its way so hopefully itll get it sorted. i jus gotta wait till monday for it 

not an ebay item origanly mustang. i bought a load of stuff of rob for the conversion and that was in with it all.