Piston to Piston Pin Clearance

(Piston to piston pin clearance) = (Piston pin bore diameter) - (Outer diameter of piston pin)

Standard: 0.002 - 0.006 mm (0.0001 - 0.0002 in)

If clearance exceeds specification, replace either or both of piston/piston pin assembly and connecting rod assembly with reference to specification of each parts.
Refer to PISTON SELECTION TABLE to replace piston/piston pin assembly. Refer to "HOW TO SELECT A PISTON ".
Refer to connecting rod bearing selection table to replace connecting rod. Refer to "HOW TO SELECT A CONNECTING ROD BEARING ".

Fig 1: Identifying Piston Identification Code, Marks & Grade

Courtesy of NISSAN MOTOR CO., U.S.A.

NOTE:

The connecting rod small end grade and piston pin hole (piston pin) grade are provided only for the parts installed at the plant. For service parts, no grades can be selected. Only 0 grade is available.
Refer to "CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END) " for the values for each grade at the plant.
Regarding marks on piston head, refer to "HOW TO SELECT A PISTON ".

Fig 2: Identifying Reference Code Of Connecting Rod

Courtesy of NISSAN MOTOR CO., U.S.A.