Vortec 1600 - Con-Rod Bearing Clearance, Check (Determine Bearing Clearance with Micrometer and Inside Micrometer)

Industrial 1.6L Engine Mechanical 1-65
Measure
1. Remove con–rod bearing cap again. Compare width of
flattened plastic thread (arrow) with measuring scale.
Permissible con–rod bearing clearance: 0.019 to 0.071
mm.
Notice: When reading the value, do not confuse
millimeters and inches on the measuring scale.
Installation Procedure
1. Clean con–rod bearing journal and con–rod bearing shell
and lubricate lightly.
2. Con–rod bearing cap to con–rod – note installation posi-
tion of the con–rod bearing cap.
3. Attach con–rod bearing cap to con–rod with new bolts.
Tighten
Tightening torque 25 Nm / 18.5 lb. ft. + 30°.
Con–rod Bearing Clearance, Check
(Determine Bearing Clearance with
Micrometer and Inside Micrometer)
Notice: Con–rod and crankshaft are removed.
Installation Procedure
1. Con–rod bearing cap with con–rod bearing shell to con–
rod.
Tighten
Tightening torque 25 Nm / 18 lb. ft. + 30°.
The bolts can be reused for checking the con–rod bear-
ing clearance.
Formula for calculating the average con–rod bearing di-
ameter: I + II + III
3
Example:
I 42.738 mm
II 42.732 mm
III + 42.741 mm
128.211 mm / 3 = 42.737 mm
The average con–rod bearing diameter is 42.737 mm.