brakes slow to grab

[d9103365]

After replacing my master cylinder and booster I noticed that the brakes are very soft...seem to be slow to grab. I'm wondering if I need to replace the calipers or if its a simle adjustment. There's no "bite" to the braking....just very very soft and slow to stop.

 

[sleepar]

Wheel seals on the rear can wet the brakes with oil and calipers on the front can have sticky pistons... the old rubber hoses (3) can go bad and block the flow and get crap in them from yours swap... but if it did it after a swap probably the new master is junk... I would put new lines on the car even if they look good and if it wasn't that I would suspect the 'new parts' the proportion valve could be plugged too. Bleed the lines with a liter of fluid and flush them out good with clear plastic line in a bottle to see the air come out... not bench bleeding the master will cause it to not pump up...

 

[440+6]

Did you bench bleed your master cylinder?

 

[HT413]

My bet is bench bleeding as well.

 

[Cranky]

Wheel seals on the rear can wet the brakes with oil and calipers on the front can have sticky pistons... the old rubber hoses (3) can go bad and block the flow and get crap in them from yours swap... but if it did it after a swap probably the new master is junk... I would put new lines on the car even if they look good and if it wasn't that I would suspect the 'new parts' the proportion valve could be plugged too. Bleed the lines with a liter of fluid and flush them out good with clear plastic line in a bottle to see the air come out... not bench bleeding the master will cause it to not pump up...

Every time I've had a rear wheel seal leak, whatever side that was leaking would lock up the brake.