Brake master cylinder.

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jayvee1980
Little Belter

Daf mad!!

Posts: 55

Brake master cylinder. May 29, 2020 11:48:24 GMT

Quote

Post by jayvee1980 on May 29, 2020 11:48:24 GMT

Hi all.

So, I sorted the steering rack and then noticed all the brake fluid had disappeared. Looks like it’s all run inside from a leaky master cylinder.

I have changed that, but I cannot get the brakes to bleed. Pumping the pedal isn’t bringing any fluid out, so I took it apart and cleaned it and all the seals looked fine. Was all quite tight when I put it back together, but still nothing. I get a puff off air from it, but no fluid.

helllllllp!! I just want it to work 😂😂

1974 Daf 66 SL and another 1974 Daf 66 SL and a 1986 Volvo 340 DL CVT

andrewthe33
Bigger Belter

I don't know what you've done to me, sir, but you've done me the power of good!

Posts: 158

Brake master cylinder. May 29, 2020 12:01:15 GMT

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Post by andrewthe33 on May 29, 2020 12:01:15 GMT

If ALL the fluid's drained out of the system it'll take a fair amount of pumping to push the new fluid through. I use one of those pipes with a split in it, with the other and fitted to the bleed nipple and the split end immersed in fresh fluid. It's a slow process, but eventually the bubbles stop!

Major Denis Bloodnok IND Army (RET) Coward and Bar

Tuning Data
Model	Plugs gap	Points gap	Timing	In. valve	Ex. valve	Idle
33-> Jul'71	0.8mm	0.5mm	6 BTDC	0.1mm	0.15mm	725
33 Jul'71->	0.8mm	0.5mm	5 ATDC	0.1mm	0.15mm	900
44-> Jul'71	0.8mm	0.5mm	6 BTDC	0.1mm	0.15mm	725
44 Jul'71->	0.8mm	0.5mm	5 ATDC	0.1mm	0.15mm	900
55	0.6mm	0.5mm	TDC	0.15mm	0.20mm	700
55 Marathon	0.7mm	0.5mm	TDC	0.15mm	0.20mm	700
66 all 1108cc	0.7mm	0.5mm	TDC	0.15mm	0.20mm	725
66 1289cc	0.7mm	0.5mm	6 BTDC	0.15mm	0.20mm	725

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