Under Pressure: why hot rod oiling systems fail

Under Pressure: why hot rod oiling systems fail

By Ray T. Bohacz: If a fluid is considered incompressible how does any hydraulic system create pressure? An engine’s oiling system bows to many laws of hydraulics even though the oil is not considered a working fluid. An example of a working fluid is brake fluid,...
How to perform a cylinder leak-down test

How to perform a cylinder leak-down test

Ray Bohacz is a journalist in the automotive field and author of CarTech’s book “How to tune and win with Demon Carburetion”. He is also a monthly contributor to Hemming’s Muscle Machines magazine. Additionally, Ray writes short articles for the...