Air in the rear cylinder....

Killerwhale · Post by **Killerwhale** » Tue May 22, 2007 8:56 pm

You got any super tips on getting air out of the rear cylinder??
When doing braided in front i also had to fight to get air out of the master cylinder but it went OK!
Been struggling to get air out for way to many hours this afternoon!!
No air in the two breathers in the caliper...

Ok, doing braided on the rear this weekend so i will struggle some more....but if any of you got a tip...besides pumping and sweating bullets!

burty · Post by **burty** » Tue May 22, 2007 9:27 pm

I've never had a problem with the TRX, but this works for most bikes where the bleeding process is traumatic:

Take the caliper off, put something in between the pads, hold the caliper above the master cylinder, with the bleed nipple uppermost. Bleed it that way.

I also use a long length of windscreen washer tubing on the bleed nipple and draw the fluid through by sucking on the tubing, (manually or using a syringe)

Killerwhale · Post by **Killerwhale** » Tue May 22, 2007 9:33 pm

burty wrote:I've never had a problem with the TRX, but this works for most bikes where the bleeding process is traumatic:

Take the caliper off, put something in between the pads, hold the caliper above the master cylinder, with the bleed nipple uppermost. Bleed it that way.

I also use a long length of windscreen washer tubing on the bleed nipple and draw the fluid through by sucking on the tubing, (manually or using a syringe)

Will try the high level stuff!
...i remember now that i have a really big syringe somewhere at work, iÃƒâ€šÃ‚Â´m usually use silicone hose on the nipples so i could suck there and see what happens!

Thanks for the ideas!!

burty · Post by **burty** » Wed May 23, 2007 9:07 am

If you suck manually, then make sure your hose is long enough and keep an eye on the fluid level.

I guess that shouldn't be encouraged. Best use the syringe.

Still use a long hose and you can see what comes out.

Sometimes it's possible to get air trapped in the caliper, so moving it about a bit might just encourage any trapped air upwards.

Also, don't try for too long, if it doesn't work in 15 minutes, leave it for a while to settle out.

Doyle171 · Post by **Doyle171** » Wed May 23, 2007 9:26 am

I found that holding the lever on with an elastic band over night helped release some of the smaller bubbles in the lines, just remember to take the cap of the res