CRANKSHAFT MAIN BEARINGS MAINTENANCE - CONTINUED
INSTALLATION - CONTINUED
Install bearing halves dry for the following clearance checks.
Install a dry upper bearing half (3) over the crankshaft journal for main bearing (4) at position no. 1 such that the bearing
tab will fit into the notch in cylinder block. If used main bearing is being installed, install main bearing half in the same
position it was removed from.
Be very careful not to scratch the crankshaft or the bearing bore during the installation of the upper bearing
halves. A scratched or damaged crankshaft, or bearing bore, could result in premature engine failure.
Simultaneously push the upper bearing half, with a flat
blade screwdriver, and turn the crankshaft until bear-
ing tab is in notch in cylinder block.
Install a dry lower main bearing half (4) in no. 1 main
bearing cap (2). Tab on bearing must be in the notch in
bearing cap. If used main bearing is being installed,
install bearing in the same bearing cap it was removed
Place plastigage on the surface of lower main bearing