Proto Moto Engineering

05/28/2026

My first YouTube experience. Many more to follow in the future. Like, subscribe and share!

Vintage Machine Tool Refurbishment11N Jacobs Super Chuck that was...

05/07/2026

Alex at Big Mission Motorsports set me up for a little challenge with some brake caliper modifications.

Truth be told, this is the second time I have done it for these guys. I made some fixture rods that made trimming the 2mm of material from the outboard clearance surface of the caliper pretty quick and repeatable. You can see the material I removed in the picture where I am pointing with the scraper.

The previous calipers I modified were tested last week at Barber Motorsports Park in Birmingham, AL where these guys smoked the competition and pulled home a 2nd place finish. Pretty cool to be working with a race team!

03/11/2026

Another challenge came up. This time it was a Harley Davidson twin cam cylinder head repair for Yak’s Motorcycle Maintenance in Palmer Lake. The threads had pulled out of where the rocker support bolts into the head. I started by making an aluminum insert, then machined the head to accept it, loctited it in, and remachined to factory spec. Fun project for a great group of guys at Yak’s.

02/27/2026

Was able to work with Big Mission Automotive to repair a E39 BMW 540i cam cap. It was completely stripped out where the stud mounts into it. Machined a threaded insert out of 6061 aluminum and threaded/loc-tited in. After some drying time, I re-machined the threads and oil galley back in. Good as new and a fine old automobile is back in business. Cheers!

03/15/2025

03/14/2025

Just designed a vise for a friend that is starting a motorcycle/mountain bike suspension maintenance shop. Greg Waldheim at Springwerx is the shop. It was a fun project and he is putting it through it’s paces.

I started out by truing the jaws up and then added the aluminum “v” style soft jaws. The main jaw holds two size shafts vertically and one larger size horizontally. The other side of the vise is designed to be modular with the capability to add inserts as per shop need.

Fun stuff!

07/01/2024

A little work done. 2000 KTM300 needed a couple threaded holes fixed in the cylinder, then a resurface of the cylinder and head. Couldn’t help but do a light clean and polish of the combustion chamber.😄