CYLINDER BLOCK - CONTINUED
REPAIR - CONTINUED
Steps 39 thru 48 are provided for cylinder block tagged for main bearing reaming.
41. Cylinder block (1)
Using wide flat mill file, remove 0.002 to
0.003 inch (.051 to .076 mm) of stock
from milled seating surface of main
bearing caps which are determined to be
If replacement cap is being used,
removing this material is not
Remove two undamaged main bearing
caps, preferably one from each end of
block or as far apart as possible.
Insert proper centering rings, with oiler up,
in two undamaged bores, and tap with
plastic-faced hammer to seat.
Using 0 to 600 ft lb (0 to 813.6 Nm) torque
wrench, reinstall and torque to
See procedure, step 14.
If centering ring must be installed where replacement main bearing caps have been sub-
stituted, limit torque to 10 ft lb (14 Nm).
Install with proper cutting tools.
Using lubricating oil, lubricate cutting
tools and main bearing bores.
Be sure tool bit cutting edge is turned in the same direction as 1/2-inch portable electric
Keep ST-1177 boring tool and main bearing bores well lubricated during all boring