Filling brake system from dry? - SV650.org

TamSV · 16-07-10, 11:49 PM

I'm rebuilding the rear caliper on my project SV as it was in a pretty poor state with a stuck piston. Also got new SRAD 4 pots for the front. I was going to rebuild them too then saw the price of two sets of seals and they suddenly looked OK.

I've replaced fluid before but never had to bleed a dry system. I need new bleeding kit anyway so which way would you go? Normal one way valve stuff or syringe it in from the bottom (which I've never tried)?

Any pointers appreciated.

DarrenSV650S · 16-07-10, 11:53 PM

A rubber tube and a spanner.

TamSV · 17-07-10, 12:05 AM

I was just thinking I couldn't be bothered with all that tightening and slackening of the bleed nipple.

I think I must be getting lazy in my old age - I've had a word with myself.

So no more difficult bleeding from dry then? That would be nice. I thought the syringe method's got "face full of brake fluid" written all over it.

17-07-10, 07:55 AM

Rubber tube over the nipple/slightly open and the discharge end of the tube blocked with a bolt and a small slit in the side submerged in brakefluid in a clear jar.Pump away till your heart is content and all air is displaced--------lock off nipple---Simples
No mess,drips,spills or fluid in your eye

The old ways are sometimes the best

timwilky · 17-07-10, 08:53 AM

I got a vacuum bleeder that I hook up to the compressor, works a treat.

attach to bleed nipple, press the nozzle, and crank the nipple.

A couple of pulls on the brake lever and the system is full.

I know you can also get hand operated vacuum pumps. Mityvac I think they are called.

17-07-10, 03:18 PM

syringe it up from the bottom, easy peasey

andrewsmith · 17-07-10, 03:58 PM

open the bleed valves and fill it, as most air will be displaced resultantly
then bleed it as normal. remember that there is two bleeds on the rear

18-07-10, 03:09 PM

Quote:

Originally Posted by timwilky

I got a vacuum bleeder that I hook up to the compressor, works a treat.

attach to bleed nipple, press the nozzle, and crank the nipple.

A couple of pulls on the brake lever and the system is full.

I know you can also get hand operated vacuum pumps. Mityvac I think they are called.

Yes it is a Mityvac and they are pretty good TBH. I think they are about £40 from M and P, but I have used mine loads of times and never had a problem apart from my Aprilia RSVR back brake. (Don't ask)

18-07-10, 03:33 PM

APRILIA back brake------------do they have a problem?

18-07-10, 04:17 PM

Quote:

Originally Posted by Dicky Ticker

APRILIA back brake------------do they have a problem?

Ever such a slight one

16-07-10, 11:49 PM	#1
TamSV Member Mega Poster Join Date: Feb 2010 Location: Troon, Ayrshire Posts: 1,811	Filling brake system from dry? I'm rebuilding the rear caliper on my project SV as it was in a pretty poor state with a stuck piston. Also got new SRAD 4 pots for the front. I was going to rebuild them too then saw the price of two sets of seals and they suddenly looked OK. I've replaced fluid before but never had to bleed a dry system. I need new bleeding kit anyway so which way would you go? Normal one way valve stuff or syringe it in from the bottom (which I've never tried)? Any pointers appreciated.

16-07-10, 11:53 PM	#2
DarrenSV650S Member Mega Poster Join Date: Jul 2006 Location: Dundee Posts: 4,404	Re: Dry brake bleeding A rubber tube and a spanner.

17-07-10, 12:05 AM	#3
TamSV Member Mega Poster Join Date: Feb 2010 Location: Troon, Ayrshire Posts: 1,811	Re: Dry brake bleeding I was just thinking I couldn't be bothered with all that tightening and slackening of the bleed nipple. I think I must be getting lazy in my old age - I've had a word with myself. So no more difficult bleeding from dry then? That would be nice. I thought the syringe method's got "face full of brake fluid" written all over it.

17-07-10, 07:55 AM	#4
Dicky Ticker Guest Posts: n/a	Re: Dry brake bleeding Rubber tube over the nipple/slightly open and the discharge end of the tube blocked with a bolt and a small slit in the side submerged in brakefluid in a clear jar.Pump away till your heart is content and all air is displaced--------lock off nipple---Simples No mess,drips,spills or fluid in your eye The old ways are sometimes the best

17-07-10, 08:53 AM	#5
timwilky Member Mega Poster Join Date: Mar 2004 Location: Not in Yorkshire. (Thank God) Posts: 4,116	Re: Dry brake bleeding I got a vacuum bleeder that I hook up to the compressor, works a treat. attach to bleed nipple, press the nozzle, and crank the nipple. A couple of pulls on the brake lever and the system is full. I know you can also get hand operated vacuum pumps. Mityvac I think they are called. __________________ Not Grumpy, opinionated.

17-07-10, 03:18 PM	#6
Razor Guest Posts: n/a	Re: Filling brake system from dry? syringe it up from the bottom, easy peasey

17-07-10, 03:58 PM	#7
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Filling brake system from dry? open the bleed valves and fill it, as most air will be displaced resultantly then bleed it as normal. remember that there is two bleeds on the rear __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

18-07-10, 03:33 PM	#9
Dicky Ticker Guest Posts: n/a	Re: Filling brake system from dry? APRILIA back brake------------do they have a problem?

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