Although
simple in appearance, the power piston ring has demands placed
on it unlike any other engine component. It must be tight enough
to prevent combustion blowby into the crankcase and to prevent
oil from entering the combustion chamber. However, it must be
loose enough to allow a film of oil to form on the cylinder wall
to prevent wear. All this while withstanding incredible punishment
from a controlled explosion that creates pressures up to 850 psi
and temperatures exceeding 1800° F. With demands like this
it is easy to see why so many users want Pedrick rings in their
engines!
Pedrick ring sets are designed to match the OEM basic sets,
but offer additional state-of-the-art features and quality enhancements.
Top
Compression Rings: Barrel Faced
We've selected barrel faced top rings as our standard since top
rings are subjected to the most punishment. Barrel faced rings offer
better scuff resistance, long life and faster break-in. Standard
rings are either cast iron or ductile iron. Optional materials include
hard chromium plating, Siltex filled grooves and bronze insert designs
for improved wear/scuff resistance.
Intermediate
Rings: Tapered Face
For over fifty years, taper faced rings have been the hallmark of
Pedrick . The tapered face helps the ring to seat faster during
the initial break-in. Taper faced intermediate compression rings
serve a dual purpose: controlling and metering lube oil and sealing
off combustion gases. One important feature of Pedrick intermediate
rings is the orientation groove which permanently marks the proper
installation direction.
Oil Rings:
Conformable
The oil ring is, in many ways, the most critical ring. It must give
maximum oil control while metering just the proper amount of oil
to prevent excessive wear or scuffing. Pedrick oil rings use a coil
spring expander for easy installation and uniform expansion. The
expander gives the proper, uniform tension throughout its long engine
life. The cast iron portion of the oil ring assembly features maximum
oil drainage and correct ring unit pressure.
Why Buy Pedrick
Piston Rings?
Simple. You're not only buying a set of rings, you're getting the
security and peace of mind that comes from dealing with a company
with over fifty years of experience. Before a ring can bear the
Pedrick name, it must pass our exhaustive quality control process.
Each ring is inspected on a light table to check tightness. Special
ring gauges are used to ensure proper end gap and oil ring unit
pressure.
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