Avid piston removal
put the new piston in, one old pad and hold it in with some mole grips/pliers/tool makers clamp? That should do it, I am unsure how it is meant to be done but avid have some fantastic technical documents on their website.
Also make sure you don’t pinch the seal else you will continue to have problems. Lots of dot friendly grease.Posted 4 years agoBoardinBobSubscriber
I’ve found removing the pads and squeezing the levers until the pistons move right out and almost touch in the middle works well. If one piston is moving more than the other then hold the dominant one in place and pump the other out.
Then split the caliper and you should now have enough of each piston sticking out to (gently) grab each one with a pair of pliers and pull them out.Posted 4 years agocoatesyMember
I normally zip tie the piston in on the side with the hose fitting, and pop the other side out by pumping the lever. I then split the caliper, remove the zip tie, press the caliper half down on a piece of innertube to seal the port, and pump air into the hose fitting hole using a plastic airbed adaptor.Posted 4 years ago
First off…I have ordered some slx brakes. Due to my avoids giving me some grief.
however I want to replace the pistons on the avid juicy 5’s on the premise I may need them if anything goes wrong with the slx. I managed to get one piston out of each caliper but can I get the other out….NO!
Any recommendations on blocking the air hole in the removed piston side of the caliper so that the other pops out?
I’m sure I’ll get some grief for even bothering with this.Posted 4 years agoBenjiMMember
I recently redid the pistons on my Juicy 7’s (about 4 years old) and had to drill the pistons out. However when I refitted new pistons I used Avids Dot Grease smeared around the seal. Not cheap, but they haven’t seized up yet which I believe is a common problem with Juicy brakes.Posted 4 years agoRusty MacSubscriber
When I have done avid callipers it has always been the inside piston (one closest to the hub) that has been sticky, because of this I force that one out first with the hydraulic pressure of the brake and holding the outside (piston on the hose entry side) with a spanner. It is easier to force out the outside piston with air after.Posted 4 years ago
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