Valve Cage & Mandrel

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.Attachment 1129Attachment 1130Attachment 1131

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

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:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="/valve-cage-mandrel"><img src="/uploads/72348/valve-cage-mandrel.jpeg" alt="Valve Cage Mandrel" /></a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="/valve-cage-mandrel">Valve Cage Mandrel</a> <span> by <a href="/builder/Catfish">Catfish</a></span> </div> <div class="tags"> tags: <a href="/tag/motorcycle">motorcycle</a>, <a href="/tag/valve">valve</a>, <a href="/tag/mandrel">mandrel</a> </div> </div> </div> </div>