'Everybody wants to talk about bottom-of-the-page camshafts with calendar-length duration figures and valve lifts approaching 31/44 inch. With all this thinly veiled aggression going on in the ...

If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...

Back in September 2020, GM quietly admitted that small-block V8s suffer from “possible broken valve springs.” According to a technical service bulletin from the biggest of the Big Three in Detroit, ...

Toyota had just managed to settle the recall waters a little bit last month, when its premium division Lexus debuted a recall for 17,000 HS 250h hybrid vehicles that were suspected of having a fuel ...

Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

Replacing potentially faulty valve springs in 3,238 Lexus vehicles to be recalled in the UK will take between seven to 22 hours per car, depending on the model, the automaker said. Affected UK models ...

A STUDY of the influence of vibration on valve-springs reveals two possible ways in which a valve-spring can vibrate: First, when the frequency of the forced vibration is low, the force tending to ...

The Center for Auto Safety is raising questions about the effectiveness of a valve spring recall issued late last year by Toyota Motor Corp. and Subaru Corp. after complaints emerged about engines ...

While the newly redesigned 2022 Subaru BRZ is currently enjoying the limelight, we want to take the opportunity to revisit a story concerning its predecessor. Avid readers will likely remember the ...