SQUARENESS OF THE FACE OF THE FLYWHEEL HOUSING AND ITS RELATIVE
POSITION (CONCENTRICITY) TO CENTERLINE OF CRANKSHAFT MUST BE
WITHIN SPECIFICATIONS TO ENSURE PROLONGED ENGINE LIFE.
Secure ST-1325 dial gage attachment to end of crankshaft.
Slide dial indicator on attachment and position indicator contact pin against inside surface
of flywheel housing at 9 o'clock position. Secure and zero indicator.
Draw chalk lines at 3, 6, 9, and 12 o'clock positions on rear bolt circle flange of housing.
Rotate crankshaft and observe run-out at 3 and 9 o'clock positions. Record reading.
Observe run-out at 6 and 12 o'clock positions. Record readings.
Dowel pins are removed so that block can be redoweled once concentricity is
If 0.006 in. (0.152 mm) run-out is exceeded in either recorded position, remove housing
and dowel alinement pins in block.
Reinstall housing and recheck run-out.