Brake bleeding kits.

[Irezumi aka Reuben]

Need a new brake bleeding kit. Does anyone have any recommendations or just use a one way valve on the bleed nipple?

Thanks for any help.
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Pictorgraphicalfantastical

[steve the grease]

Gravity works quite well , the more you pump the lever, the more little bubbles you generate. For the front at least, I just run a pipe down to the ground and have a little bottle to collect the outflow, a couple of pumps to get it started and then let gravity pull the bubbles through, keep topping up the reservoir and tap the pipe and caliper to dislodge any lodged air bubbles whilst you sit back and drink your cup of coffee. It's miles easier than all this frantic pumping. For the rear remove the caliper and hold it up, air likes to rise , so a couple of quick pumps and it's done.

[Nobby the Bastard]

[steve the grease]

[Islander]

I just use a clear plastic tube long enough to fit over the bleed nipple and immerse in a jar with some brake fluid in. Pump the lever slowly until pressure builds, hold it the lever in, crack the nipple open a tiny amount, wait for the fluid to stop flowing, close the nipple, release the lever.

Rinse and repeat until there's no more air coming out of the system and the lever stays firm.

[1198]

In my (admittedly small) experience of brake kits they’re shit for anything other than flushing through old oil, when the system is full already. They seem to struggle when there’s air in the system as the air compresses when the lever is squeezed then expands when released - without any passing the one way bleed valve. (The shorter the pipe between nipple and valve the better, as there’s less air getting squeezed. Trying to bleed a system from empty was just about impossible, I ended up with the old bleed nipple cracking and shutting routine.)

[Irezumi aka Reuben]

Thanks for the advice, I'll stick to the jug and tube method then.
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Pictorgraphicalfantastical

[Riejufixing]

[Nobby the Bastard]

You can get vacuum ones that work well, and also for cars you can get them that pressurise the reservoir which also work well,

I say for cars because they come with a variety of caps that go in place of the reservoir one but bike ones aren't as universak.

Both are more expensive than a piece of pipe and a jar but I know a vacuum one worked on a thumb brake when I couldn't bleed it traditionally because of the length of the pipe and the routing resulted in an airlock.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[Ste]

Reverse bleed for the win.

[Tdibs]

Cheap hand pump vacuum one has worked fine for me for years.
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