Loss of brake fluid

Richard B

Member
Hi All
I've been slowly losing brae fluid over the last 2 weeks. Got sometime tomorrow to investigate. Any common prblems I should look for? It's a P6B auto. The brake servo was replaced about a year ago by Colin Gould.

Any hints gratefully received

Thanks

Richard
 
Servo would affect performance, you'd notice the footwell, so I take a guess at the rear calipers....
 
First thing to look for would be drips underneath :)

I had an internal leak in the servo, which didn't affect the braking performance, but did do something else. When I let him tick-over for a little while, trying to pull out from a junction for instance, the initial acceleration would produce enough white smoke to obliterate anything behind me.

Richard
 
Hi All
I've been slowly losing brae fluid over the last 2 weeks. Got sometime tomorrow to investigate. Any common prblems I should look for? It's a P6B auto. The brake servo was replaced about a year ago by Colin Gould.

Any hints gratefully received

Thanks

Richard
Thanks everyone..... realy helpful
 
When my master had a leak it did not go into the footwell as normally happens. Somehow the dust cap kept the oil from leaking inside the car so the oil ended up leaking inside the cavity and dripped onto the suspension rubbers. I was under the impression that either the reservoir leaked or the pipe between the reservoir and the brake pipe leaked so replaced those first. Now the suspension rubbers need replacing as they have gone soft and spongy.
 
When my master had a leak it did not go into the footwell as normally happens. Somehow the dust cap kept the oil from leaking inside the car so the oil ended up leaking inside the cavity and dripped onto the suspension rubbers. I was under the impression that either the reservoir leaked or the pipe between the reservoir and the brake pipe leaked so replaced those first. Now the suspension rubbers need replacing as they have gone soft and spongy.


this seems to be exactly what has happened in my case. footwell is dry but leak of brake fluid on to suspension components is very much in evidence. have ordered refurb kit for master cylinder.
 
I wouldn't bother to reseal it 9 out of 10 master cylinder bores will be badly corroded.
By a new one ( not new old stock as many are at least 30 years old )
It's a single line system with no safety features so don't scrimp on anything brake related.
 
I wouldn't bother to reseal it 9 out of 10 master cylinder bores will be badly corroded.
By a new one ( not new old stock as many are at least 30 years old )
It's a single line system with no safety features so don't scrimp on anything brake related.
thanks all..... as noted new master cylinder was needed due to corrosion internally. really fiddly job with limited room to work.... but all done now.
just as an aside.... bleed nipples were metric 10mm rear and 11 mm front..... took me a while to twig..... is that normal?
 
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