dried up brake fluid

[herculesinwyoming]

im on to my brakes on my 620, it sat for unknown years estimated 14 to 20 years, the master caps were not sealed right so the whole system evaporated and luft a funky crust,

 

i replaced the master with a good reaman one from napa, i cant get fluid to flow to the wheels, so my plan is to check every spot in between, like the ditrubution blocks ( iguess they are called)

 

whats a good solvent to disolve the old crusty dried fluid, denatured alchohol?

 

im sure the wheel cylenders are gunked up, i will take them out tomorow to see how bad they are.

im tempted to try to blow some air trough each line ( discontected of course) to see if it helps.

 

 

 

if any one has any advice on dealing with this im open to sugestions.

i want to get the brakes working so i can finaly drive it around the block and see what else is in need of help.

 

thanks for any ideas

[MikeRL411]

Brake cleaner would be the most expensive but best solution. It's designed to clean out residue without leaving any contamination of its own. Denatured alcohol will leave a residue after you are through and probably contaminate the new brake fluid. Isopropyl alcohol [iPA] is a practical solution, it leaves no residue [it's used to clean spacecraft parts to insure no contaminates prior to launch].

[Skib]

Isopropyl alcohol [iPA] is a practical solution, it leaves no residue [it's used to clean spacecraft parts to insure no contaminates prior to launch].

 

I used IPA to clean aircraft electronics too, dosent leave any residue but if somethings stuck on there good it needs a bit of a scrub to get off. Id go with break cleaner tho.

[herculesinwyoming]

thanks for the input, i will see what happens,

the old dat truck wants to go for a drive, i hope i get it rolling soon

[hang_510]

im tempted to try to blow some air trough each line ( discontected of course) to see if it helps.

 

were ALL the rubber lines replaced??? do so if not.

 

 

air --> brake cleaner --> 90% IPA (better than 70%!) --> air

 

 

bleed well.

[herculesinwyoming]

i got a day off today, so i worked on the brakes some more,

i found the lines were plugged up at the angled part that the felxablie line connects to right at the wheel cylenders. they flow great now.

next i have to get the rears flowing and try to bleed the system after.

 

i know the wheel cylenders will probably leak if i dont change them, so they are on the to do list before i do driving and messing up the brakes, which all look like they have very few miles on them.

Edited July 9, 2009 by herculesinwyoming