Vehicle & Technical > Defender

Black clutch fluid.

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fish:

My clutch biting point was getting a bit low (had to take the mats out to get smooth gear change!) so thought I better check it out. I was surprised when I opened the clutch fluid reservoir to find it had very little fluid in it (I can see the master cylinder pipe work and slave cylinder are all relatively new). Checked the lines over, no sign of leaks. So topped it up and started to bleed the system, one 1cm bubble was about all the air that came through, but what was very noticeable was the fluid was black, did about 10 peddle pumps still fairly black, anyone any idea why the fluid would be black and should I just keep bleeding until the fluid is clean?

mudplugger01:
        black fluid normally means seals "going",,save future heart ache,  change master and slave soon ..whilst its "a good time" ...

robbie:
my 90 has been off the road for about 3 yrs now and only used a little to take stuff aroung the field. It was never a problem that the brakes didnt work very well as I never got out of first or reverse. i am now getting it ready for going back on the road and decided I had better take a look at the brakes, the master cylinder had black fluid in it and I renewed the rear cylinder seals and stuck a new master cylinder on, bled the brakes, jobs a gud en :)

robbie:
Typical, following this posting, i checked the clutch fluid and found that had a silvery sediment at th ebottom of the master cylinder.... so it looks like mine wants doing too... what a job too... having to take the whole bracket of the bulkhead!!!

fish:
I thought the master cylinder was just held on by 2 bolts, so no need to remove bracket and peddle box?........better check the manual

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