brake fluid

If I flush the brake/clutch system, how much new fluid will I need? Any one know.... or done it.

2 or 3 ltrs would be plenty.

I have done a GTA recently and used a litre. 1 1/2L would be overkill enough. If experience on the 3 GTAs I have changed the brake fluid on is any guide, it will be quite likely that the bleed nipples will be siezed.

I have unfortunately snapped off two of them, even after spraying them and tapping them with a hammer to loosen them. They can be drilled carefully and replaced without damage, but takes an hour or so of fiddling.

Thanks Alan,
I will apply some wd40 in advance of this operation to help loosen up my nipples.
I also thought about opening up all 4 brake calipers to max, pack them out with a wooden block and to remove the excess fluid from the resivoir first. Yes, monitoring levels to avoid spillage too. That way I get more of the old fluid out, with out any contamination of the new.
I think I'll buy 2 litres then.

According to the workshop manual, 0.7 litres in the brake circuit. However it doesn't say how much is in the clutch circuit and they're effectively one and the same.

1 and a bit?? By 2 like you said. Remember to get DOT 5 too.

I just use a piece of clear nylon tube,(the same one as fits the nipples) to siphon out the fluid in the reservoir, then fill the reservoir with new fluid and use an old aluminium cap from a Renault 10 with a shrader valve fitting in it and use a regulated supply of 15psi to push the fluid through the open nipple. You could use a bike pump if careful.

This saves pumping the pedal and pushing the Master Cylinder piston through parts of the cylinder it nomally never sees. Usually there is rust and crud in the cylinder, and so this damages the rubber cups meaning a master cyl rebuild, and so a fuel tank removal on a RHD GTA to get to it.

A small job on a Saturday morning just came to the point that you won't be driving the GTA to work on Monday, unless you are well eqipped with spare brake parts.

Buy a Gunsons Easibleed - it does exactly what Alan is suggesting - using the air pressure from a tyre to push the fluid through but it also has a reservoir built in for your fresh fluid so you don't have to keep disconnecting and topping up the master cylinder. You just fill the bottle with new fluid, screw the cap onto the master cylinder, pressurise it up and then go round and open each bleed nipple until nice fresh fluid runs through. Cost around £20 from Halfords but it has proven well worth that in terms of the reduction in hassle over the years. Always does a good job and removes the chance of air being drawn in when you let your foot back off the pedal.

Thanks, yep got got an eezi-bleed and I'm hoping it is going to be as simple as that.

Thanks, yep got got an eezi-bleed and I'm hoping it is going to be as simple as that.

Infinitum .................................

You should have more faith in these cars!
We have had a Renault Scenic from new and it has broken down 4 times in 3 years, my Alpine only once in 2 years when the alternator bearings failed.
Any it took 30 minutes to change a light bulb on a Ford KA on a works car this week. No room at all under the bonnet!

You should have more faith in these cars!
We have had a Renault Scenic from new and it has broken down 4 times in 3 years, my Alpine only once in 2 years when the alternator bearings failed.
Any it took 30 minutes to change a light bulb on a Ford KA on a works car this week. No room at all under the bonnet!

I have faith Simon ,drove mine to Milan and back,no worries . I have just had mine MOT'd ,only prob ,rear brake calipers ,one refurbed unit and the other 'snapped bleed nipple so careful now