Vortec 1600 - Cylinder Block, Check for Plane Surface

1-72 Engine Mechanical Industrial 1.6L
Measure
1. The crankshaft journal diameter is measured with a
micrometer at points I and II and then calculated.
Formula for calculating the average crankshaft bearing
journal diameter: I + II
2
Example:
I 54.962 mm
II +54.964 mm
109.926 mm / 2 = 54.963 mm
The average crankshaft journal diameter is 54.963 mm.
The crankshaft clearance is calculated from the differ-
ence in diameter between the crankshaft bearing bore
and crankshaft journal.
Example:
Average crankshaft bearing dia. 54.979 mm
Average crankshaft journal dia. – 54.963 mm
0.016 mm
Permissible crankshaft bearing play: 0.015 to 0.041 mm.
Cylinder Block, Check for Plane Surface
Clean
1. Clean sealing surface and remove sealant remnants.
Inspect
1. Check sealing surfaces in length and width for deforma-
tion and check for warping along the diagonals – use
straight edge.