Is there a guide for brake fluid change?

[qwakers]

i tried my ezibleed on my s1 and it wouldnt seal no mtter what i tried, i even modded a spare cap and it still leaked even at 5 psi.

[AceCobra1]

Then this works really well:

Gunson G4062 Eezibleed Kit

Did you need to change the tyre pressure to 14 PSI as they recommended or can I just put it through the standard PSI that is already on my tyre i.e. about 30 ?

And did you need to only put a bit of PTFE tape to get it to seal or loads ? I assume just put it around the treads on the reservoir then tighten the ezibleed cap around the tape ?

Which brake fluid do you recommend ?

[warpc0il]

The ezibled kit comes with various screw caps but the 8 has a bayonet fitting.

I made up a modified oem cap and even with an extra seal and a tyre valve I couldn't get good results.

This was with a spare wheel at various low pressures.

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[13Black]

I too have modified OEM bayonet cap - which is usually vented to prevent a vacuum so that needs sealing up with araldite or similar to limit leaks.

Mine still leaks mind but you can get half a resi's worth through a line on one 20psi charge before it doesn't have the oomph to move more fluid.

[geofftl1000r]

I use a Pela pump to suck clean fluid through but rather then use ptfe tape on the nipples I use a dollop of grease at the base of the nipple to seal the threads and stop air getting sucked in. Not forgetting to clean it away afterwards.

I have the ezi-bleed kit too and that works well when you can get a good seal. Maybe I need to look for a tapered bung of some sorts that can be clamped in place of the RX8's reservoir cap.

[Delanor]

I have used a Gunsens pressure bleeder for years as it comes with a selection of reservoir caps be aware that there are imperial and metric sizes so pick the right one it should be a tight secure fit, you don`t get any problems with air drawn back through the bleed nipples as using this the system is always under pressure and its a doddle to do it yourself.

Its literally a case of connect the pressure bleeder using a spare wheel at a reduced pressure, connected to the reservoir, systematically open each bleed valve, expel old fluid, lock the valve remembering to keep your eye on the replacement fluid level.

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Del.

[warpc0il]

The Gunsens kit doesn't include an adaptor that fits our tanks.

I (and a couple of other members ) went to the trouble of making an adaptor out of a used original Mazda cap and it still doesn't work.

The problem is that our tanks breath through the side of the thread not through a hole in the cap. The cap is also a bayonet fit, so has to press down further to turn than when locked. Even a soft o-ring can't form a seal.

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[13Black]

I (and a couple of other members ) went to the trouble of making an adaptor out of a used original Mazda cap and it still doesn't work.

Again Dave, speak for yourself mine does the job just fine. It doesn't have to seal 100% to have adequate pressure for bleeding.

[warpc0il]

Mine held some pressure for a bit and then sprayed brake fluid over the entire front of the car. Not trying that again.

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[13Black]

Like I've said before, fill the Gunson can with fluid with a leak on the reservoir and you're asking it to spray everywhere!

Just use it to pressurise the system for the final few ml of fluid. Bosh.