I've just replaced the rear pads and brake fluid on my 1098 and since doing this the pedal has gone very spongy in fact there's hardly any resistance at all! I've tried bleeding and bleeding the system even removing the caliper and holding it as vertical as possible with the bleed nipple at the top but nothing seems to work! what can I try next? Thanks
do you know anyone with a auto/vacuum bleeder? we use as get better results. sounds like there is plenty of air in the system when you raise the calliper you have got the bleed nipple loose? did you remove the hose? could be sucking air in if a used copper washer was used. http://www.sealey.co.uk/PLPageBuild...rogroup=1078&analysiscode=&requiredresults=16
Hang a heavy weight on the pedal overnight with the caliper raised up and try again in the morning. The pressure often forces the air up over time. Also push the pads right back and tap the caliper whilst rotatiing it to release any air bubbles trapped in the piston cavity. My Aprilia rear brake was awful for air (M/C next to exhaust so cooked the fluid) and that was the only way to bleed it properly and that uses the same Brembo gear as the 1098.
Agree with both the posts, its a real "front bottom" of a job. The rear brake on mine is not that good anyway and I had to have multiple tries using a vacuum bleeder. All I can add is, its not you, its bloody Ducati design and you just have to persevere at it John
perhaps you should try a wavy rear disc..........i heard the better quality metal helps here.........
Crack the banjo on the master cylinder and give it a bleed from there as there could be air trapped at that end.
If you do not want the expense of a quality bleeder then you can use a syringe connected to a rubber pipe to draw the fluid through the caliper. Lab 1ml,10ml and 20ml. 3 Pack Plastic Syringe. | eBay
