Valve Cage & Mandrel

[Catfish]

The plastic valve cage inside of my sons Kawasaki Dirt Bike front fork shocks, had blown out due to over pressurization. So we made 2 new ones from 6061 Alu. First we machined the inside bores 4 different dia.'s.
Then we mounted the cage on a mandrel we made, for the outer dia.'s. The cage outer is actually tapered.
We modified the cage with 4 milled slots to reduce the internal pressure, this is a mod that the racing boy's do.
So far they are working great. Fun and complicated project.

[DIYer]

That's a nice piece of machining. Me,the best option would have been to just go out and buy the part.

[kbalch]

Thanks Catfish! I've added your Valve Cage Mandrel to our Machining category, as well as to your builder page: Catfish's Homemade Tools. Your receipt:

Valve Cage Mandrel by Catfish

tags: motorcycle, valve, mandrel