- Joined
- May 23, 2010
- Messages
- 283
Hello,
The Norton Lockheed master cylinder has a tiny vent drilled in the cap and rubber inner cover to seal the reservoir. I assume this allows air to flow into the reservoir to keep a vacuum lock from developing in the reservoir, similar to the vent in a gas tank cap, and keeps brake fluid inside the reservoir and keeps moisture from the air from mixing with it.
I've never noticed any such vent arrangement in any other master cylinders I've ever worked on. How do other master cylinder reservoirs handle this? Is a vacuum lock in master cylinder just not a real problem?
-Eric
The Norton Lockheed master cylinder has a tiny vent drilled in the cap and rubber inner cover to seal the reservoir. I assume this allows air to flow into the reservoir to keep a vacuum lock from developing in the reservoir, similar to the vent in a gas tank cap, and keeps brake fluid inside the reservoir and keeps moisture from the air from mixing with it.
I've never noticed any such vent arrangement in any other master cylinders I've ever worked on. How do other master cylinder reservoirs handle this? Is a vacuum lock in master cylinder just not a real problem?
-Eric