SV650.org - SV650 & Gladius 650 Forum - View Single Post - Bleeding front brakes question from a noob

SV650rules · 26-05-17, 08:01 AM

This company sells a non-return valve, wonder what their returns policy has to say about non-return stuff LOL - Also I often wonder if you should ever buy a battery that is shipped free of charge.

http://www.ebay.co.uk/itm/New-Motorc...3D161657955017

https://www.youtube.com/watch?v=1iSN2vc5-b0

The problem I see with reverse bleeding, especially on ABS systems is that dirty fluid from slave cylinders and lines is being forced back into the system not sucked out, there should be filters in ABS system and these could get blocked by crud, which in any case may be pushed back into system once brakes are used again. The dirtiest most contaminated fluid is likely to be in lower parts of system.

IMHO maybe a combination is best, get clean fluid into system by sucking from the bleed nipples on calipers (or squeezing brake lever / undo nipple etc, or with non-return valve as in link above) and then use reverse bleeding as a more effective way of getting any remaining air bubbles out.

Getting air into an ABS system actuator is not normally good news as it can be devilish hard to get it out again.

26-05-17, 08:01 AM	#10
SV650rules Member Mega Poster Join Date: Nov 2016 Location: Shropshire UK Posts: 1,364	Re: Bleeding front brakes question from a noob This company sells a non-return valve, wonder what their returns policy has to say about non-return stuff LOL - Also I often wonder if you should ever buy a battery that is shipped free of charge. http://www.ebay.co.uk/itm/New-Motorc...3D161657955017 https://www.youtube.com/watch?v=1iSN2vc5-b0 The problem I see with reverse bleeding, especially on ABS systems is that dirty fluid from slave cylinders and lines is being forced back into the system not sucked out, there should be filters in ABS system and these could get blocked by crud, which in any case may be pushed back into system once brakes are used again. The dirtiest most contaminated fluid is likely to be in lower parts of system. IMHO maybe a combination is best, get clean fluid into system by sucking from the bleed nipples on calipers (or squeezing brake lever / undo nipple etc, or with non-return valve as in link above) and then use reverse bleeding as a more effective way of getting any remaining air bubbles out. Getting air into an ABS system actuator is not normally good news as it can be devilish hard to get it out again. __________________ 2016 SV650 AL7 Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain Last edited by SV650rules; 26-05-17 at 10:55 AM.