Yanmar 3TNV82A-B Service Manual page 289

Before You Begin Servicing COOLING SYSTEM
CAUTION
Use a new special O-ring between the
engine coolant pump and the joint. Be
sure to use the special O-ring for each
engine model. Although the O-ring
dimensions are the same as a
commercially available O-ring, the
material is different.
0000042en
TNV DI Service Manual
8-5