Oil Seal Construction; Cut-Off Seal Outline - Mazda RX-8 2004 Service Highlights

OIL SEAL CONSTRUCTION

• To prevent the oil that is supplied to the inner rotor for cooling and for lubrication of the bearings from leaking
into the combustion chambers from the side surfaces, two oil seals have been added to each side of the rotor.
• The tapered lips press against the housing friction surface to perform oil sweeping and have employed hard-
chrome plating for improved wear resistance.
• The addition of oil seal springs between the oil seals and the rotor maintain a oil seal against the side housing
friction surface. Colored marks for identification of the spring have been added on the oil seal spring.
OIL SEAL
SEC. A
End Of Sie

CUT-OFF SEAL OUTLINE

• New seals have been adopted in accordance with the side exhaust port system for improved combustion
stability.
End Of Sie
MECHANICAL
O-RING
INTERNAL GEAR
OIL SEAL SPRING
A
—
O-RING
OIL SEAL
A A
OIL SEAL SPRING
LOCK AGAINST ROTATION
IDENTIFICATION COLOR
DIRECTION OF ROTOR ROTATION
CHU011011910S06
01–10
OIL SEAL SPRING
CHJ0110S016
CHU011011910S07
01–10–15