coozer
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| posted on 6/10/07 at 08:21 PM |
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Brake Fluid Leak
I filled my brake system up about 6 weeks ago and bled it off. Positive firm pedal from the off. No leaks.
Actually drove it on Friday for the first time, just up the drive to get it out the garage. My drive rises up to the road and its no mean feat to push
a car up there!
Anyway the next day I noticed a small puddle of brake fluid and it seems to coming from the hose that connects the cylinder to the reservoir.
Why has it leaked after all this time? First proper application of the brakes? Problem is I thought there was no pressure on the reservoir side of the
system so why has it leaked?
All the unions and hose clips are tight and it hasn't leaked anymore since the one use of the brakes.
Thanks,
Steve
1972 V8 Jago
1980 Z750
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x_flow57
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| posted on 6/10/07 at 09:50 PM |
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Are you using proper brake fluid hose, others will leak virtually from new which is why at SVA they need proof you are not using fuel or water hoses.
Mine have sat in the garage for 2 weeks with good quality rubber fuel hose and you can see the fluid coming out along the whole length. I have found a
suplier of the correct hose if you need it (will have to get the details from wk tomorrow)
Nick
<<<<<For Sale
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RazMan
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| posted on 6/10/07 at 11:32 PM |
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Agreed, if all the unions are tight it sounds like the hose has sweated out the fluid so I would check the spec.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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coozer
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| posted on 7/10/07 at 05:58 PM |
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The hose is brake type. I got it from Merlins.
It has only leaked after I've used the brakes on my drive.
Here's my donor on the drive and you can see how steep it is...
 
Rescued attachment small donor 1.JPG
1972 V8 Jago
1980 Z750
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02GF74
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| posted on 8/10/07 at 01:58 PM |
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pah - call that steep???
if instead of pushing car by rollbar, try moving it by grabbing top of tyre and turning the tyre - it is much easier - as the tyre diameter is
effecitively a lever; obviously the bigger the tyre, the easier it will be.
I am able to push my land rover this way which weighs 3 times as much a your ickle kit car up a similar gradient 
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Alex B
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| posted on 10/10/07 at 09:27 PM |
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quote:
Originally posted by 02GF74
pah - call that steep???
if instead of pushing car by rollbar, try moving it by grabbing top of tyre and turning the tyre - it is much easier - as the tyre diameter is
effecitively a lever; obviously the bigger the tyre, the easier it will be.
I am able to push my land rover this way which weighs 3 times as much a your ickle kit car up a similar gradient
That`s cos your Landy is a lightweight
Alex
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iank
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| posted on 11/10/07 at 06:13 AM |
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Are you using silicone fluid? There have been posts before about hose that says it's ok for brake fluid leaking actually being designed for
fuel. That was using DOT 5.1 - what are the numbers on your hose?
http://www.locostbuilders.co.uk/viewthread.php?tid=61061
Unfortunately no confirmed answer.
As you rightly say the reservoir to cylinder hose isn't under any (real) pressure so shouldn't be leaking due to use.
p.s. a lightweight landy is heavier than a series III. It's only lightweight when compared against a tank
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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