Engine - Updated Crank Bearing & Journal Specifications

89Pontiac22

Bulletin Number: 89-6-70
Reference Number: 906105R
Publish Date: 10/89
Subject: SERVICE MANUAL UPDATE - SECTION 6A - CRANKSHAFT BEARING AND JOURNAL SPECIFICATIONS - (ADDITIONAL SPECS)

Models
Affected: 1989 BONNEVILLE MODELS
Crankshaft bearing and journal specifications were omitted from the 1989 Bonneville service manuals. Specifications are as follows.

Connecting Rod Bearing

Journal O.D. in. 2.2487-2.2499
(mm) (57.117-57.147)

Run-out in. .0003
(mm) (.008)
Taper in. .0003
(mm) (.008)

Bearing to Journal in. .0003-.0026
Clearance (mm) .0076-.0711)

Side Clearance in. .003-.0026
(mm) (.076-.381)

Connecting Rod in. 2.3738-2.3745
Large End Bore I.D. (mm) 60.295-60.312)

Crankshaft Main Bearing:

Journal O.D. in. 2.4988-2.4998
(mm) 63.470-63.495)

Journal Run-Out in. .0003
(mm) (.008)
Journal Taper in. .0003
(mm) (.008)

Bearing to Journal in. .0003-.0018
Clearance (mm) (.008-.045)

End Play in. .003-.011
(mm) (.076-.279)

Main Bearing in. 2.688-2.687
Bore I.D. (mm) (68.275-68.250)