Hercules — To Install the Flywheel
Repair & overhaul
From a Hercules owner's manual — check it applies to your exact model before use.
Procedure
- Insert the flywheel dowels in the crankshaft and turn the crankshaft so No. 1 cylinder is at top dead center.
- Turn the flywheel so the timing mark is in line with the timing hole in the bellhousing; install the flywheel and draw in place with the attaching nuts or screws.
- Attach an indicator to check concentricity of the pilot bore; this should not exceed .005 inch total reading.
- Attach the indicator to check the face of the flywheel; this should not exceed .005 inch total reading.
- Install the cotter pins or lock wires and insert the expansion plugs if used.
- Install the starting motor.
- Install the clutch and transmission or power take-off as removed.
Tools required
- Dial indicator Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Pilot bore .005 in max
- Flywheel face .005 in max
Source: Hercules owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.