Valve stem seal 2418M522 Perkins, aftermarket

Valve stem seal 2418M522 is an aftermarket part for the Perkins engine. The card also lists 10000-05566.

The valve stem seal fits on the top of the valve guide and stops oil from the rocker area running down the stem into the combustion chamber. A hardened or worn seal causes blue smoke, especially at cold start and after long idling, and higher oil consumption. The photos show a seal with a spring-loaded lip and metal body. The seal lets just enough oil past to lubricate the stem in the guide and holds back the excess. Seals on the exhaust side run hotter and harden sooner. The seal rubber is an oil- and heat-resistant compound, which keeps it flexible for longer. The seal fits tightly around the valve stem, and its lip controls the oil film. The seal is supplied new.

Specifications

Compatibility

The part is listed for machines with Perkins engines. Other parts are in Perkins engine.

Fitting

Lightly oil the seal lip before fitting. After assembly, watch the exhaust for smoke on first start. Check the valve clearances when the seals are replaced. Remove the old seals with pliers or a puller without damaging the guide.