Reed valve
Check the reed valve for damage or fatigue.
Replace if necessary.
Replace the reed valve if the rubber seat is cracked, deteriorated or damaged, or if there is clearance between the reed and seat.
Cylinder
Check the cylinder for warpage by placing a straight edge and a feeler gauge across the stud holes as shown.
Service limit: 0.10 mm (0.004 in).
Inspect the cylinder bore for scratches or wear.
Measure the cylinder I.D. at three levels in the X and Y axes.
Take the maximum reading to determine the cylinder wear.
Service limit: 101.05 mm (3.978 in).
Calculate the cylinder for taper and out-of-round at three levels in the X and Y axes. Take the maximum reading to determine the taper and out-of-round.
Service limits:
- Taper: 0.10 mm (0.004 in)
- Out-of-round: 0.10 mm (0.004 in)