Technical brake pedal keeps drifting

[ulyysedriver]

hello, i have ulysse jtd desiel, i changed the brake pads and now the brake pedal keeps drifting down when pushed. (didnt drift before)
when i fitted brakes i levered the calpers open on front and on back opened bleed nippple and levered open cos so stiff to move, i have used bleed tube with valve to bleed over and over lots of times , ie pushed pedal down open nipple close nipple bring up route.
it feels stiff when engine off but when engine started up it then drifts.
i tryied bleeding engine off and on.

could it be master cylinder failing?
is there and extra part to vent ?
does abs unit need any thing doing?
should i try with onle of these presurising bleeders?

www. halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_204645_langId_-1_categoryId_165469

many thanks for any advice

 

[digger58]

Hi,
I had same problem and in the end I bought a Sealey kit and used pressure to bleed through. only way it worked for me. I would still be at it if I hadn't used pressure.
T

 

[ulyysedriver]

i got a Gunson Eezibleed im going to try tommorow ! any tips?