Servicing Cessna 172 Stuck Exhaust Valves A rough-running engine means it’s time to pop valve covers.

Valve lash, for example, is something that should be checked at least every 135,000 miles on a Cummins diesel engine, although many people adjust it even sooner. We’ve heard of valves being out ...

Specifically, that allowed Porsche to alters the intake valves' timing relative to the position of the pistons in the cylinder as well as the timing of the exhaust valves.

The German arms and automotive company, Rheinmetall, announced on Tuesday that it will begin to manufacture exhaust gas recirculation valves or EGR for a "renowned car manufacturer" that it did ...

Does your engine really need hardened valve seats? Will Unleaded Gas Burn up the Exhaust Valves in an Old-School Muscle-Car Engine?

Yoshitoshi Hagiwara, Masao Ishida, Tomoo Oka, Rikizo Watanabe, Koji Sato, Development of Nickel-Base Superalloy for Exhaust Valves, SAE Transactions, Vol. 100, Section 5: JOURNAL OF MATERIALS & ...

We're taking a look at how Xceldyne’s high-end titanium intake and exhaust valves are made. Check it out!

Trouble with the exhaust-valves of the Type-J aircooled cylinder caused an investigation to be made of valve-cooling and of valve and guide wear. A temperature of 1300 deg. fahr, invariably caused ...