Description
Polini is one of the big names in 50cc scooter tuning, and is also one of the leading manufacturers of tuning parts for Vespa, modern and vintage. Cylinders, intake manifolds, exhausts, air filters, carburetors, crankshafts and more - everything you need to boost the performance of your Classic Vespa.
Polini Oil Seals for 19mm crankshafts Vespa 50cc PK / 125cc Primavera - a set of oil seals (x2) for crankshafts with 20mm journals, made of high quality FKM with PTFE sealing lip. They are extremely durable and resistant, even at high temperatures. In addition, frictional losses are minimized which leads to optimum crankshaft (and overall) performance and minimized heat generation.
- oil seals, right + left
- for crankshafts with 19mm journals
what does a gasket do?
There are many different types of gaskets or gasket sets in an engine, e.g. cylinder gaskets, intake gaskets, oil seals, crankcase gaskets, exhaust gaskets, carburetor gaskets or engine gasket sets. They all have the same function: to prevent leakage between components.
When and why should you change an engine gasket?
When servicing your two-wheeler or noticing leaking fluids, be sure to follow this one important rule: Always replace an old gasket with a new gasket.
Damaged or worn gaskets can no longer do their job properly, the parts that have to be sealed are no longer adequately sealed, which can lead to serious follow-up damages.
Before you install a new gasket, you must thoroughly clean and degrease the sealing surface.
You can also use silicone sealant as an alternative to paper or metal gaskets in some cases. But beware, O-rings and oil seals cannot be replaced by sealant.