Valve stem seals allow a controlled amount of oil to lubricate the valve stem as it moves in the valve guide. The amount of oil that passes by the valve stem seal must be precisely controlled.

Mar 26, 2019 · Valve stem seals control the lubrication of the valve stem as it slides in the valve guide. Faulty valve stem seals increase oil consumption.

Mar 14, 2023 · This guide strives to reveal the top bad valve seal symptoms and discuss the purpose of these seals. We also look at the location of the valve seal, explain how to check it and show you what the replacement might cost.

May 22, 2024 · If you’ve noticed blueish-white smoke during cold starts, increased oil consumption, or spark plug fouling, valve stem seals may be the culprit. To identify and fix failures, conduct diagnostic tests like compression tests and borescope inspections.

Fel-Pro valve stem seals are made of the highest quality materials and latest technology to ensure a long-lasting seal. Use them for every valve stem seal replacement job.

Jun 4, 2024 · Valve stem seals control lubrication to the valve stem, as it moves up and down in the valve guide. Providing a precisely controlled leak.

New valve stem seals can be installed on or off the vehicle. While the process is similar, there are some differences depending on which variation you choose. From removing the old seals to installing new Fel-Pro valve stem seals, follow these steps for a successful repair.

A valve stem seal is a small component that keeps the valve stem sufficiently lubricated so that the engine can run smoothly. A leaking valve stem seal can cause poor engine performance and negatively affect emissions.

Valve stem seals provide a defined metering rate of oil to the valve stem interface of internal combustion engines to lubricate the valve guide and minimize engine emissions. They are available for diesel and gasoline engines with and without boosting.

Jul 1, 1998 · Seal design. Valve stem oil seals come in two basic types – umbrella seals and positive seals. Used mostly on older pushrod engines, umbrella or deflector style seals (which also include O-rings) are installed on the valve stem and ride the stem up and down as the valve opens and closes. An umbrella