Engine - New Main Bearings Reduce Noise at Idle

ENGINE: EG001-97

January 17, 1997

Title:
1MZ-FE ENGINE MAIN BEARING CHANGES

Models:

'94-'96 Camry, Avalon

Introduction

To reduce internal engine noise when idling at normal operating temperature, the following changes have been made:

^ No. 1 and No. 4 main bearing oil clearances have been reduced by installation of thicker bearings having marks that are 2 higher in number than the original bearings installed on vehicles prior to production change.





Production Change Information





Field Repair Procedures

Replace both No. 1 and No. 4 main bearings with those having marks 2 higher than number on back of original bearings (illustration).

NOTE:
See Repair Manual for details regarding disassembly & reassembly. If original bearing numbers are not clear, adjust clearances within 0.025 mm - 0.030 mm (0.0010 - 0.0012 in.) using plastigage.





Warranty Information





Parts Information

The table indicates appropriate bearing part numbers for use on TMM and TMC produced vehicles.