Pursuing The Small Engine Market
Small engines are everywhere. They power lawn mowers, garden tillers, portable generators, all kinds of pumps, go-carts, ATVs, snowmobiles, motorcycles, forklifts, even refrigerated trailers on reefer trucks. Most of these engines are single-cylinder four-stroke air-cooled motors that range in power from 5 to 15 hp or more. Some have vertical crankshafts and some have horizontal
Parts Making With Your CNC
Computer Numeric Controlled (CNC) machining allows engine builders to achieve almost unbelievable levels of accuracy and consistency. The programmability of a digital computer not only automates the operation of the equipment but also provides a level of repeatability that can’t be matched by manual equipment. That’s why CNC has been the backbone of virtually all
Assembly Oils, Greases and Lubes
In the October 2012 issue of Engine Builder, I wrote about engine assembly lubes and why you should consider using them. When I was asked to write another article to help engine builders better understand and select engine assembly lubes for their operation, at first I didn’t understand the assignment. I thought I had
What’s on the Dyno?
While automotive trends come and go, true collectors develop a personal taste that grows more interesting and eclectic as time passes. Sometimes it comes down to owning things truly unique and one-of-a-kind. This GMC inline-6 is all of that and more. The 302 cid inliner is one of the most sought after inline-6 engines, and
Learning From Broken Parts
In 1973, I was a sportsman drag racer. My car was the two-ton orange ’57 Mercury named, “The Big Animal.” The transplant engine was a pure stock Ford 427 FE 8V low riser I called “Old Reliable,” shifted by a top loader four-speed with a Hurst Competition Plus shifter. In August of that year, I
Engine Builder Shop Solutions: April 2013
Making Your Own Piston Ring Compressor Some customers have been asking me for piston ring compressors in sizes we do not carry. My suggestion to them is to do what I do. Look in a cylinder sleeve catalog and find one that is close to the ID of the job you’re working on. Place the
Ready for a Diesel Resurgence?
Diesel engine building will soon see an increase in numbers – very soon! Why do I say that? In an effort to eliminate smoking engines and reduce emissions, the EPA came down hard on tuner manufacturers just a few months ago, issuing warning/cease notices on diesel particulate filters (DPF) and EGR delete tunes/kits.
Performance Gaskets & Surface Finishes
The most critical engine gaskets are the head gaskets since they have to withstand the heat and pressure of combustion. And unless the engine is a drag motor with a solid billet or filled block, the head gaskets also have to keep coolant out of the cylinders. Many performance engines are capable of making
Valve Seats & Guides
Most engine builders worth their salt know that with the components and technology available today, it’s not that difficult of a task to make horsepower. With the availability of so many performance parts – whether it’s from the OEM or the aftermarket – engine builders can pull from vast resources to achieve a balance between
‘Heads Up’ On Today’s Cylinder Heads & Bolts
Some say the air cleaner of an engine is like the front door of a house. That is, it’s what you see first and foremost. And the home owner can use that door to make a statement about the house without anyone seeing what’s inside. Much like what an air cleaner says about an engine
Valvetrain
Selecting the right components to make a rock-solid valvetrain is key to assembling an engine that will last – and win. The pushrods, rockers and valve springs must be able to handle all of the stresses of the camshaft rotating with high spring pressures and with huge lift. Weakness in any part of the system
Not Quite a Full Pull
In tractor pulling parlance, a “hook” is when you attempt a pull. A “full pull” is one in which you go the maximum distance of 300 feet. At Engine Builder, we’re mourning one of our own, who made the hook, but didn’t quite get the full pull. Jim Walbolt, who had been a contributor to