Screw, washer and nut are from blower.
Install washer (6), screw (7) and nut (8) in rear end plate (4) and flywheel housing (9).
If backlash cannot be checked at face of blower drive gear, check at accessory drive hub.
If gears fit tight, turn crankshaft to free before reading backlash.
Backlash must be minimum of 0.002 in. (0.051 mm) and maximum of 0.010 in.
If proper backlash cannot be obtained, replace blower drive support.
Using a dial indicator check backlash
between blower drive assembly (3) and right
back camshaft gear (10).
Remove nut (8), screw (7) and washer (6).
Install cylinder head, (Para 20-88).
END OF TASK