Note 1 (2004-2013) Micra 3 (2002-2010, petrol)

The order of selection of pistons and bearings — description (Nissan Note E11)

Table of contents: The order of selection of pistons ↓ The procedure for selecting main…↓

Correspondence	Selected component	Selection criteria	Method of selection
Between the cylinder block and the crankshaft	Main bearing	Main bearing class (bearing thickness)	Determined by the compliance of the class of the main bearing housing in the cylinder block (inner diameter of the housing) and class of crankshaft journal (outer diameter of the neck)
Between the cylinder block and the piston	Piston and piston pin assembly (Pistons are supplied complete with piston pins)	Piston class (piston skirt diameter)	Piston class = cylinder diameter class (inner diameter of the cylinder)

The class marking stamped on each part represents the geometric dimension class as measured on a new part. This class does not apply to reused parts.

Perform accurate geometrical measurements on reused or repaired parts. Determine the class by comparing the measurement results with the values provided in the individual component selection tables

For more detailed information on how each part is measured, reuse standards, and how to match components to the site, see the text.

The order of selection of pistons

When a new cylinder block is used

Check the cylinder bore class ("1", "2" or "3") at the bottom rear of the cylinder block and select a piston of the appropriate class.

Note: The piston crown shape varies from engine to engine, as does the location of the markings shown in Fig.

Note: The piston crown shape varies from engine to engine, as does the location of the markings…

When an old cylinder block is reused

1. Measure the inner diameter of the cylinders.

2. Determine the diameter class by comparing the measurement results with the values of the inner diameter of the cylinders presented in the "Piston Selection Table".

3. Select a piston of the appropriate class.

Piston selection table

Engine CR14DE, unit of measurement - mm.

Class	1	2	3
Inner diameter of the cylinder	73,000-73,010	73,010-73,020	73,020-73,030
Piston skirt diameter	72,980-72,990	72,990-73,000	73,000-73,010

The procedure for selecting main bearings

When a new cylinder block and crankshaft are used

1. The horizontal lines in the "Main Bearing Selection Table" correspond to the class of the main bearing housing ("0", "1", "2" or "3"), stamped at the bottom of the rear side of the cylinder block.

2. Find the main journal diameter class ("0", "1", "2" or "3"), stamped on the front of the crankshaft, in the vertical column of the "Main Bearing Selection Table".

3. Select the class of main bearing (from STD1 to STD7) at the intersection of the horizontal line and vertical column in the "Main Bearing Selection Table".

When old cylinder block and crankshaft are reused

1. Measure the inside diameter of the main bearing housing in the cylinder block and the diameter of the main journal.

2. Compare the measurement results with the values in the horizontal line "Inner diameter of the main bearing housing in the cylinder block" presented in the "Main Bearing Selection Table".

3. Compare the measurement results with the values in the vertical column "Crankshaft Main Journal Diameter" presented in the "Main Bearing Selection Table".

4. Select the class of main bearing (from STD1 to STD7) at the intersection of the horizontal row and vertical column in the following selection table.

Main Bearing Selection Table

Inner diameter of the main bearing in the cylinder block		-	49,004/49,000	49,008/49,004	49,012/49,008	49,016/49,012
Main journal outside diameter	Class mark (stamped)	-	0	1	2	3
44,970/44,966	0	Bearing class Bearing thickness Color coding	STD1 2.002/2.006 red	STD2 2.004/2.008 green	STD3 2.006/2.010 Yellow	STD4 2.006/2.012 blue
44,966/44,962	1	Bearing class Bearing thickness Color coding	STD2 2.004/2.008 green	STD3 2.006/2.010 yellow	STD4 2,000/2,012 blue	STD5 2.010/2.014 pink
44,962/44,958	2	Bearing class Bearing thickness Color coding	STD3 2.006/2.010 yellow	STD4 2.008/2.012 blue	STD5 2,010/2,014 one-time	STD6 2.012/2.016 white
44,958/44,954	3	Bearing class Bearing thickness Color coding	STD4 2,000/2,012 blue	STD5 2,010/2,014 pink	STD6 2.012/2.016 white	STD7 2.014/2.018 blue/yellow

Instructions for the use of bearings with reduced repair dimensions

If the specified main bearing oil clearance cannot be achieved with standard size main bearings, use undersized main bearings.

When using an undersized bearing, measure the main bearing inside diameter on the installed bearing and regrind the main journal to obtain the specified oil clearance.