Unofficial Royal Enfield Community Forum

Royal Enfield Motorcycles => Bullet with the UCE engine => Topic started by: singhg5 on April 26, 2014, 10:15:53 pm

Title: Front Disc Brake Piston Cylinder and Seals Service
Post by: singhg5 on April 26, 2014, 10:15:53 pm

For sometime the front brake pads were holding on to the disc. The brake pistons were not retracting. This affected riding and turning since the brakes were always ON for the front wheel.

Took out the brake pistons. Its cylinder walls had hard crud (looked like rust) accumulated over the years due to perhaps snow and salt and other debris. The pistons had white crust on surface too. All this prevented free movement of one (top) piston.

Each cylinder has 2 seals - a larger piston seal and a smaller dust seal.

After service, it is working very well.

https://www.youtube.com/watch?v=3W1K6Normn4

Title: Re: Front Disc Brake Piston Cylinder and Seals Service
Post by: singhg5 on April 26, 2014, 10:31:37 pm

THANKS VINCE for your GOOD ADVICE before I opened caliper !!  

Some pictures   

Title: Re: Front Disc Brake Piston Cylinder and Seals Service
Post by: Arizoni on April 26, 2014, 10:50:32 pm

Thanks for another good video Singh. :)

Title: Re: Front Disc Brake Piston Cylinder and Seals Service
Post by: Sectorsteve on April 27, 2014, 12:46:17 am

I really need to do this too...