Рет қаралды 3,797
Honda CB750 Front Brake Caliper Strip Down | Using A Grease Gun to Remove a Seized Piston | Part 15
In this episode, I strip the front brake caliper of my CB750 project bike. I am building this bike to be a road-going runner, not a full restoration. A working front brake is essential for my health and happiness :)
Here's what I used in this video:
Grease gun: ebay.us/ypohP9
Grease nipple: ebay.us/afcp01
Compressor: ebay.us/Q1yndj
The front brake on this bike seems to have had a difficult life. Somebody has replaced the bleed nipple with a bolt at some time in the past. That, a bad paint job, and probably 30 years of not being used meant it was in a bad way.
Taking it off the bike wasn’t too difficult, but when I started to strip it the pads were seized solid. Removing the pad from this side without the piston, involved a little brute force and ignorance with a hammer. But the piston and pad on the other side of the caliper took a little bit more.
Usually, you can use an air gun to push the piston out. But this one was not for moving. Luckily we know the technique that uses a grease gun to remove the piston. You have to make sure you have a grease nipple of the correct thread before you start though.
A lot of pumping was cut out of the video and I was amazed how far the piston flew when it eventually came out. This can happen when you use air, but usually, when I have used grease in the past they don’t come out with as much force in the end. This one was really seized!
Having the caliper apart, luckily the threads seem fine, which is a surprise, and the seal bed for the piston seems to be in good shape too. I expect to be able to rebuild this without too many problems. Famous last words, for the next video.
For more helpful how-to guides and restoration project logs, visit our blog: www.spannerras...
As an Amazon Associate, Ebay Partner and Awin Affiliate, we earn a small commission from qualifying purchases. Some of our links are affiliate links, and if you decide to purchase things through them, we earn a small commission. It costs you nothing but helps us to keep the content coming. Thanks for your support!