Crankshaft/Connecting Rod - Manual Update

91pontiac17

Bulletin Number: 91-6-12
Reference Number: 006107
Publish Date: 11/90


Subject: SERVICE MANUAL UPDATE - SEC.6 ENGINE MECH-CRANKSHAFT MAIN BEARING, CONNECTING ROD (NEW BEARING CLEARANCE)

Models Affected: 1985-91 BONNEVILLE AND GRAND AM MODELS WITH 3.0, 3.8, AND 3800 ENGINES


The following revised bearing clearances should be used when servicing main bearings and connecting rod bearings on the engines listed above. Note that the clearances are the same for main and rod bearings.

CRANKSHAFT MAIN BEARINGS

Bearing to Journal Clearance 0.020 - 0.055 mm.
(.0008 - .0022 in.)

CONNECTING ROD BEARINGS

Bearing to Journal Clearance 0.020 - 0.055 mm.
(.0008 - .0022 in.)