Bleeding bleeding! Brakes

Hi Guys, & Gals sorry, I've just rebuilt all 4 brakes, new cylinders shoes springs hubs etc. & now for some unknown reason I cannot bleed the bleeders!! Have any of you have any useful suggestions please?

Mike

If you have a compressor, use a vacuum bleeder:-

Something like the Sealey VS020, on the bay for £20, item number 321925076016

If no compressor, then a pressure bleeder:-

Something like the Trident tyre fed one here:- £24 - flea bay item 251353568607

Does that help ?

Try filling the master reservoir, then just leaving the bleed nips open, one at a time. Fluid will just seep down the pipework, and you'll get air-free fluid coming out in fairly short order.

TLS fronts, or SLS?

If your using a one man bleed system
Dont over loosen the bleed nipple when depressing the pedal as air can be sucked back in through the threads. They are quite a shite fit and in no way air tight when opened up. Better use a spare child or local drunk to press and release the pedal while you open and close manually.
Other than that gravity bleed as described.

Toomany2cvs what do you mean TLS fronts or SLS! Cheers

Cliffmac99 said:

Toomany2cvs what do you mean TLS fronts or SLS! Cheers

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Twin leading shoe or single leading shoe. Single has one cylinder twin has two.

Cheers it has twin leading shoes new cylinders top & bottom. Thanks

Plus one for the gravity bleed suggested by to many 2cvs.
I have never failed with this method and always a "Good Peddle" feeling when done.

Plus two for gravity bleed.

Cliffmac99 said:

Cheers it has twin leading shoes new cylinders top & bottom. Thanks

Click to expand...

And you have got the fluid going IN to the lower port on each cylinder and OUT from the upper port, right? Doesn't matter so much whether it goes through the lower or upper cylinder first, just that you're not going to get trapped air.

Purchased a Gunsons easy bleed. Now got front brakes working but nothing to the rear brakes at all

There's a lot of pipe full of air. It'll take a while for the fluid to come through...

Have you tried just opening a nipple and leaving it for a while?

Yes have tried leaving them open all night but nothing!, I am now convinced it's the PDWA valve as when I bought the car the rear brake cylinders had bust, loosing all the fluid etc.

Mike

Have you tried undoing the rear pipe unions at the valve, and seeing if you're getting fluid either side of that?

Yes opened the pipe from rear to the PDWA & nothing came out so going to strip that down & service or replace. Thanks for your valued input.

And there's definitely fluid the other side of it?

Can't tell as it's difficult to get to, as I say I going to take it off & have a good look at it.

Nightmare! PDWA valve no good definitely stopping fluid getting rearward! Part now obsolete too anyone any ideas where I can get a replacement please? Or alternative solution. MIKE

I've got one here that I need, but if I had time I'd strip it down ready for a clean and rebuild. A quick look on the web at a Lockheed one being overhauled showed a bit of corrosion and four aged 'O' rings needing cleaning and replacing. Might well be the quickest solution, and you have noting to lose.

Forgot to say that I'd have looked at the internals of mine and told you how tricky it looked - but I'm off on holiday as soon as my Son gets here!