Cylinder Block: Assembly

Fig 1: Identifying Connecting Rods, Connecting Rod Caps And Bearings

Courtesy of SUBARU OF AMERICA, INC.

Tightening torque: 45 N.m (4.6 kgf-m, 33.2 ft-lb) 

1. Apply engine oil to the surface of the connecting rod bearings, and install the connecting rod bearings on connecting rods and connecting rod caps.
2. Position each connecting rod with the side with a side mark facing forward, and install it.
3. Attach the connecting rod cap, and tighten with connecting rod nut. Make sure the arrow on connecting rod cap faces the front during installation.
   NOTE:

   • Each connecting rod has its own mating cap. Make sure that they are assembled correctly by checking their matching number.
   • When tightening the connecting rod nuts, apply oil on the threads.
4. Install the oil ring upper rail, expander and lower rail by hand.
5. Install the second ring and top ring using piston ring expander.
   NOTE: Assemble so that the piston ring mark "R" faces the top side of the piston.