Workshop Manual

EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE

15.6 INSTALLATION OF PISTON AND CONNECTING ROD ASSEMBLY

Install a s follows:

1. If the rings have been removed, install them into the grooves of the piston and rotate

120° apart as f ollows:

[a] Install the oil ring expander in the lowest groove in the piston.

[b] Install the oil ring (top label up) in the lowest groove around the oil expander ring.

[c] Install the compression ring (top label up) in the middle groove.

[d] Install the ﬁre ring (top label up) in the top groove.

2. Allowable new ring end gaps for (A), (B), and (C) are shown below.

Ring Ring End Gap

Fire Ring (A) 0.35 - 0.75 mm (0.024 - 0.030 in.)

Compression Ring (B) 0.7 - 0 .9 mm (0.027 - 0.035 in.)

Oil Control Ring (C) 0.4 - 0 .6 mm (0.016 - 0.024 in.)

Table 15-1 Allowable Ring End Gaps

3. Add clean engine oil to a clean pan at least 305 mm (12 in) in diameter, until the level

reaches approximately 76 mm (3 in).

4. Place the piston and connecting rod assembly into the pan, with the combustion dome of

the piston on t he bottom of the pan.

5. Coat the upper connecting rod bearing shell with clean engine oil.

All information subject to change without notice.