Vortec 1600 - Crankshaft, Check; Crankshaft End Clearance, Check; Crankshaft Out-Of-Round, Check; Crankshaft Bearing Play, Check (Determine Bearing Play with Plastigage)

1-70 Engine Mechanical Industrial 1.6L
Crankshaft, Check
Crankshaft End Clearance, Check
Measure
1. Attach Dial Gauge MKM–571–B with dial gauge bracket
to one face of cylinder block and position probe of dial
gauge on crankshaft.
2. Slide crankshaft in longitudinal direction. Permissible
crankshaft longitudinal play: 0.100 to 0.202 mm.
Crankshaft Out–of–round, Check
Inspect
1. Remove crankshaft bearing cap.
2. Attach Dial Gauge MKM–571–B with dial gauge bracket
to cylinder block.
3. Apply probe of the Dial Gauge MKM–571–B to crank
shaft bearing journal.
4. Turn crankshaft uniformly. Max. perm. out–of–round: 0.03
mm.
5. Crankshaft bearing cap with new bolts to cylinder block.
Tighten
Tightening torque 50 Nm / 37 lb. ft. + 45° + 15°.
Crankshaft Bearing Play, Check (Determine
Bearing Play with Plastigage)
Inspect
1. Bearing play – crankshaft bearing cap removed.
Important: To prevent thread from tearing when removing
con–rod bearing cap, remove grease from con–rod journal
and lightly oil con–rod bearing shell. Do not turn
crankshaft.
Measure
1. With ”Plastigage” (deformable plastic thread).
2. Cut thread to bearing width and lay axially between crank-
shaft journal and bearing shell (arrow). Install crankshaft
bearing cap with torque –
Tighten
Tightening torque 50 Nm / 37 lb. ft. + 45° + 15°.
Notice: The bolts can be reused for checking crankshaft
bearing clearance.