Bleeding Brakes

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Re: Bleeding Brakes

Post  Bill & Ted on Thu 04 Jan 2018, 11:41 am

Ok, so I borrowed a friends vacuum pump and tried to bleed the brakes but no matter what I did it just sucks air from around the threads of the bleed nipple.
Was thinking I might have to put some teflon tape around the threads of the bleed nipples and see if that works , if anyone else has had the same problem could you please tell me how you fixed it?
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Re: Bleeding Brakes

Post  dhula on Sat 06 Jan 2018, 1:42 pm

First off, Welcome to the madhouse, hope you enjoy. Many friendly and knowledgeable peeps around these parts

Don't put thread tape around the bleeder (or any other part of the brake system) to make it seal better, bad joo-joo IMO. I've seen a few people do it and the tape is either crap tape, not put on well or falls apart and sits under the sealing face of the bleeder causing problems.
There are a couple of ways to get the standard brakes the best they can be (given what they are), remembering that on an ABS there is a mile of hose, pipework and many connection points that all add to the dull feel.
1. Pressure bleed the system. I had spare mcyl caps that I'd modded to put a tyre Vv in so I could use a pushy pump on which pressurized the whole system making it "blow" the fluid out. Bit slow and painful to do as you're always checking and refilling the mcyl but it gave good results in the end.
2. Take the bleeders out and clean the F### out of them and reinstall. Using a syringe carefully "push" fluid back into the system. This is the very final step once you've changed/flushed and bled the system. Doesn't need much, just enough to displace any remaining air and move it to the mcyl so it can pop out the top.

The brakes on the Bandit are what they are, built to a budget (IIRC it used to be about $500 difference between non ABS and ABS bikes), they are nothing special but they do the job. Better pads help a fair bit tho.

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Bleeding Brakes

Post  Bill & Ted on Mon 08 Jan 2018, 11:27 am

Thanks mate, love the idea of the homemade pressure bleeder. ill give the syringe ago and see how it works out, as it is the lever is alot better than it was after bleeding the brakes every second day.
Dont laugh but I even thought of suspending the Bandit nearly vertically to get the air out of the ABS system.
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Re: Bleeding Brakes

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