To Drive in New Valve Seat Insert.

NOTE: ON ALUMINUM ALLOY CYLINDER MODELS, IT MAY BE NECES-

SARY TO GRIND THE PULLER NUT UNTIL THE EDGE IS 1/32" THICK IN

ORDER TO GET THE PULLER NUT UNDER THE VALVE INSERT.

5.2.2.2.9

Select the proper valve seat insert and the correct pilot and driver, accord-

ing to Table 2. You will note that one side of the seat insert is chamfered

at the outer edge. This side should go down into the cylinder. Figure 21 & 22

Insert the pilot into the valve guide, then drive the valve insert into place

with the driver. The seat should then be ground lightly and the valves and

seats lapped lightly with grinding compound. Clean thoroughly.

NOTE: ALUMINUM ALLOY CYLINDER MODELS - Use the old insert as

a spacer between the driver and the new insert. Drive the new insert until

it bottoms. Top of insert will be slightly below cylinder head gasket sur-

face. Then peen around the insert.

TOOLS & VALVE SEAT INSERTS