mazda Workshop Repair Guides

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Engine Rear Oil Seal - Damage Prevention|Page 1804 > < Engine Rear Oil Seal - Damage Prevention|Page 1802
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Crankshaft Main Bearing Seal: Technical Service Bulletins
Engine, Rear Oil Seal - Revised to Prevent Oil Leak

Category

Applicable Model/s

D

1986-'90 RX-7

Subject ENGINE REAR OIL SEAL

Bulletin No.

002/90

Issued

7/6/90

Revised

DESCRIPTON

Damaging the engine rear oil seal while assembling the flywheel (M/T) or counterweight (A/T) may cause an oil leak. The following countermeasures
have been implemented since February 28, 1990 production.

a)

To prevent damaging the seal, the front edge of the flywheel or counterweight has been smoothed.

b)

The color of the engine rear oil seal has changed from blue to orange. Although the orange seal has a slightly higher tension, the part number
has not been changed, and either seal can be used.

To prevent oil seal damage, follow the installation procedure shown below when replacing the oil seal.

VIN OF PRODUCTION CHANGE

JM1FC331} LO806487  February 28, 1990 JM1FC332} LO806487  February 28, 1990 JM1FC351} LO806487  February 28, 1990

INSTALLATION PROCEDURE

1.

Install the new oil seal to the stationary gear.

Engine Rear Oil Seal - Damage Prevention|Page 1804 > < Engine Rear Oil Seal - Damage Prevention|Page 1802