Additional engine speed requires increased spring pressure to allow proper valve control. Insufficient spring pressure can result in uncontrolled valve movement, the two most common problems being ...

Now for some math. Without taking valve lash into consideration, the "available" spring works out like this: Available Spring: Installed Height minus Solid Height1.880 inch - 1.100 inch = 0.780 inch ...

Modern single-coil beehive springs are a different story, however. They're designed for today's engines, which typically feature more valve lift and operate at higher speeds.

For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install ...

A recall notice issued by the Korean carmaker reveals that a total of 2,872 Telluride models built for the 2024MY between October 1, 2023, and December 6, 2023, have engine valve springs that ...

Jalopnik has received a bunch of tips about Scion FR-S and Subaru BRZ engines failing after being taken in for a valve spring recall. Yes, you read that right: The cars aren’t breaking and being ...

The fix: Dealerships will inspect and replace the valve springs at no cost to consumers. How to contact the manufacturer: Subaru: 800-782-2783. Toyota: 800-331-4331.

As the engine heats up, the spring inside the thermostat expands and pulls the valve open. Electric chokes use the vehicle's 12-volt power to control the thermostat.