How to Select Piston and Bearing
How to Select Piston and BearingDESCRIPTION
*: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only "0" grade is available.) The information at the shipment from the plant is described as a reference.
^ The identification grade stamped on each part is the grade for the dimension measured in new condition. This grade cannot apply to reused parts.
^ For reused or repaired parts, measure the dimension accurately Determine the grade by comparing the measurement with the values of each selection table.
^ For details of the measurement method of each part, the reuse standards, and the selection method of the selective fitting parts, refer to the text.
HOW TO SELECT PISTON
When New Cylinder Block is Used:
Check the cylinder bore grade (1, 2 or 3) on the rear upper side between cylinder block banks, and select piston of the same grade.
NOTE: Piston is available with piston pin as a set for the service part. (Only 0 grade piston pin is available.)
When Cylinder Block is Reused:
1. Measure the cylinder bore inner diameter.
2. Determine the bore grade by comparing the measurement with the values the Cylinder bore inner diameter of the Piston Selection Table. Select piston of the same grade.
Piston Selection Table
NOTE:
^ Piston is available together with piston pin as assembly
^ Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts, no piston pin grades can be selected. (Only 0 grade is available.)
^ No second grade mark is available on piston.