INSTALL PISTONS

3208 INDUSTRIAL AND MARINE ENGINES

DISASSEMBLY AND ASSEMBLY

PISTONS

INSTALL PISTONS

12-1214

Tools Needed

1Y7426

1. Turn the crankshaft until the bearing journal for

the pistons to be installed is at bottom center.

2. Put clean engine oil on the crankshaft bearing

journal and inside of the cylinder walls. Put

clean engine oil on the piston rings and

connecting rod bearings.

3. Make sure the ring gaps are approximately 120

apart. Install tool (A) on the piston.

4. Put the piston in position in the same cylinder

bore from which it was removed. The hole

(crater) in the top of the piston must be toward

(nearest) the center of the engine.

5. Push the piston into place while putting the

connecting rod into position on the crankshaft.

6. Put clean engine oil on the threads of the bolts

and contact surfaces of the nuts for the

connecting rod caps.

CAUTION: When installing connecting rod caps, make

sure that the numbers on the side of the cap is next to

and respective with the number on the side of the

connecting rod.

7. Put the cap in position on the connecting rod

and install the nuts. Tighten the nuts to a torque

of 30 3 lb.ft. (4.1 0.4 mkg). Put a mark on

each nut and the end of each bolt. Tighten the

nuts 60 5more.

8. Follow the same above procedure for

installation of the remainder of the pistons.