(1) Find the crankpin diameter class on the front side of the crankshaft (0, 1 or 2) and select connecting rod bearings of the same class.
Note: There is no class division for the big end diameter of the connecting rod.
When the crankshaft and connecting rod are reused
(1) Measure the inside diameters of the big ends of the connecting rods and make sure they are normal.
(2) Measure the outside diameters of the crankshaft journals.
(3) According to the measurements obtained in the table (column "Outer diameter of connecting rod journal"), select a connecting rod bearing of the corresponding class.
Connecting rod bearing selection table
Unit: mm
(Information copied from the portal www.NissanBook.ru)
Instructions for use of undersized connecting rod bearings
If the specified oil clearance cannot be achieved with standard size connecting rod bearings, use undersize bearings.
When using undersize bearings, measure the bearing inside diameter on the installed bearing and regrind the crankpin to obtain the specified oil clearance.
Table of connecting rod bearings of reduced repair size
Unit: mm
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Caution: When regrinding crankpins to fit undersize bearings, maintain rounded corners on all crankpins.
- Standard radius R: 1.5-1.7 mm