The Howell V-4 Engine Project
Building a Howell V-4 Internal Combustion Engine
The Craftsmanship Museum’s Second Group Shop Project is a Success
The project featured on this page took about two and a half years to build. It was built in the Craftsmanship Museum machine shop, but parts were contributed by a group of different craftsmen. For the second museum shop project, we built a V-4 internal combustion engine designed by Jerry Howell. We have documented the build on this page, and recognized the craftsmen who made it happen. Many photos and descriptions of the process have been provided as a teaching experience.
Starting the Howell V-4 Engine Project
The Joe Martin Foundation began construction of a second internal combustion 4-cylinder engine in September, 2007. The Howell V-4 engine is now finished and part of the museum’s collection in Carlsbad, CA. We started by obtaining a set of plans from the engine’s designer, Jerry Howell.
Tom Boyer of the museum’s shop once again acted as both lead machinist and job coordinator. We invited several model engineers to participate in this project with us. A list of contributors can be seen below; however, for this second project a large majority of the engine was built by Tom Boyer.
- Designer: Jerry E. Howell, Colorado Springs, CO
Type: 4-cycle, water cooled, twin cam, 90° V-4
Size: 7.6″ L (with radiator) x 5.75″ W x 7.07″ H (on skid)
Displacement: 1.95 cu. in. (32 cc)
Flywheel Diameter: 3.0″
Carburetor: 2 jet
Ignition: Hall effect distributor
Fuel: 30% white gas, 70% methanol
Start Date: 09/25/07
First Pop: 03/16/10
Video of Jerry’s Engine Running
Watch video of Jerry’s own V-4 engine being started and run. Jerry disconnected the battery, so the starter became a generator that powers two light bulbs, and then revs the engine. (*DJR)
Video of the Joe Martin Foundation Howell V-4 Engine
Watch a YouTube video of the first pop for the Craftsmanship Museum’s Howell V-4 engine. We also took another short video of the engine running. (*DJR)
The Build Team
View a list of the build team members for the Howell V-4 engine project, along with some of the components built by each craftsman.
Full Howell V-4 Engine Build
View our chronological documentation of the full Howell V-4 engine build. We have included many more photos of the construction process behind our running Howell V-4.