I am in my 60s and have been doing brake jobs both pads and shoes since I was a teenager. I was taught how to do this by two uncles who were professional mechanics.
One of the things I was taught is that when replacing brake pads, simply push the caliper pistons back slowly without opening the reservoir. This allows the fluid to move back up the line without over-stressing the seals or risking the introduction of air into the system which could necessitate bleeding the brakes.
I have lost count of how many brake jobs I have done this way and can say I have never had any issues with any of them.
Recently I was came across a YT video on brake pad and rotor replacement produced by what appears to be either a bucks-up automotive repair and/or automotive training facility.
The person doing the video insists that one should open the bleeder valve slightly while pushing back the piston. His reasoning is grime and dirt that accumulates behind the piston could get into the brake line and master cylinder causing issues with the brake system. He went on to say that you must bleed the system after completing the replacement job.
I have watched numerous videos online pertaining to brake pad replacement and this is the only one that I have found that says to open the bleeder valve. Even my Chilton's manual (I just checked) says to slowly push the piston back keeping an eye on the reservoir to prevent overflow. It does not say anything about opening the bleeder valve.
Has anyone else ever heard of this and what is your opinion on the issue?
One of the things I was taught is that when replacing brake pads, simply push the caliper pistons back slowly without opening the reservoir. This allows the fluid to move back up the line without over-stressing the seals or risking the introduction of air into the system which could necessitate bleeding the brakes.
I have lost count of how many brake jobs I have done this way and can say I have never had any issues with any of them.
Recently I was came across a YT video on brake pad and rotor replacement produced by what appears to be either a bucks-up automotive repair and/or automotive training facility.
The person doing the video insists that one should open the bleeder valve slightly while pushing back the piston. His reasoning is grime and dirt that accumulates behind the piston could get into the brake line and master cylinder causing issues with the brake system. He went on to say that you must bleed the system after completing the replacement job.
I have watched numerous videos online pertaining to brake pad replacement and this is the only one that I have found that says to open the bleeder valve. Even my Chilton's manual (I just checked) says to slowly push the piston back keeping an eye on the reservoir to prevent overflow. It does not say anything about opening the bleeder valve.
Has anyone else ever heard of this and what is your opinion on the issue?
