1999 Volvo Penta "WT" Models Workshop Manual, Page 64Get this manual
5Refer to Engine Specifications in the proper engine repair section for correct gap6If the gap between the ends of the ring is not as specified, remove the ring and try another for fitInspect:
Ring fit as follows: 1Fit each compression ring to the piston on which it is going to be used10755
2Slip the outer surface of the top and second compression ring into the respective piston ring groove, to make sure the ring is freeIf binding occurs at any point, the cause should be determinedIf binding is caused by the ring groove, correct it by dressing the groove with fine cut fileIf the binding is caused by distorted ring, try new ring
Assemble: