5 replies to this topic

[Doz1971]

OK, time to throw out my brake fluid, as I don't know how old it is...

How much am I going to need?

It's a 1978 1275GT. No servo.

[Ethel]

Suppose I ought to have an idea,but I don't. I reckon half a litre would do; you could measure how much you take out.

[tiger99]

If the system is in good order and you are only changing the fluid without needing to admit air and re-bleed, a litre should do. Otherwise, plan for much more if it proves to be difficult to bleed.

For a fluid change, I have always used an Easybleed, and do rear right, rear left, front right, front left, (and no need to adjust rear brakes up really tight) as that sequence would seem to minimise miximg of the old and new fluid. That may well be different from the sequence needed to expel air in a rebuilt sysytem.

[Doz1971]

Thanks. The system isn't dry, just a change. Nervous about using an easy bleed on an old master cylinder. But I suppose if it's so worn to fail, I should be doing something about it anyway.

[bmcecosse]

Half a litre is plenty!

[Ethel]

Using a syringe to suck it through is an alternative to an easibleed, easier to keep it topped up too.