The traditional "60/80" rule for piston engine compression is an outdated myth; specific manufacturer guidance (e.g., TCM Service Bulletin SB03-3) dictates airworthiness for Continental engines and ...

Last month we acquainted you with a few unique procedures for using conventional tune-up devices—such as a vacuum gauge, timing light and electrical analyzer—for evaluating the efficiency and ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

A healthy engine is a precision piece of machinery. When its tolerances are within spec, seals are tight, spark is ample, and components are well-oiled, it's reliable and operating with utmost ...

Cylinders are the heart of any internal combustion engine. The cylinders are where air and fuel are compressed and ignited, creating combustion which is what creates power. One of the most important ...

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...