Alignment

1. Install the rings as shown on page 7-17.

Identify top and second rings by the chamfer on the edge, and make sure they are in proper grooves on piston.

2. Rotate the rings in grooves to make sure they do not bind.
3. The manufacturing marks must be facing upward.

4. Position the ring end gaps as shown:

Pistons

Installation

Before installing the piston, apply a coat of engine oil to the ring grooves and cylinder bores.
1. If the crankshaft is already installed:
•   Remove the connecting rod caps and slip short sections of rubber hose over the threaded ends of the connecting rod bolts.
•   Install the ring compressor, check that the bearing is securely in place, then position the piston in the cylinder and drive it in using the wooden handle of a hammer.
•   Stop after the ring compressor pops free and check the connecting rod-to-crank journal alignment before driving piston into place.
•   Install the rod caps with bearings, and torque the nuts to 33 N•m (3.3 kg-m, 24 Ib-ft)

2. If the crankshaft is not installed:
•   Remove the rod caps and bearings, install the ring compressor, then position the piston in the cylinder and drive it in using the wooden handle of a hammer.
•   Position all pistons at top dead center.

NOTE: Maintain downward force on the ring compressor to prevent rings from expanding before entering the cylinder bore.