The order of selection of connecting rods and piston pins (Nissan Serena C24)

If a new connecting rod is used

Select a connecting rod bearing that matches the journal diameter class of the crankshaft being used according to the section "Connecting rod bearing selection procedure", see below.

Cylinder block surface warping

Remove any traces of sealant, old gasket, oil, etc. from the contact surface of the cylinder block.

Attention:

Do not allow sealant residue to enter oil and water passages.

Check the cylinder block contact surface warpage in 6 different directions.

The source of the article is on the website [NissanBook.ru]

• Warpage Limit: 0.1mm

Inner diameter of main bearing housing

Install the main bearing caps without bearings and tighten the mounting bolts to the specified torque.

Using a bore gauge, measure the inside diameter of the main bearing housing.

• Standard diameter: 58.944-58.968 mm

If the diameter is different from the norm, replace the cylinder block and main bearing caps.

Note: The components listed cannot be replaced individually.

Clearance between piston and cylinder wall

Inner diameter of the cylinder

Using a bore gauge, check each cylinder for wear, out-of-roundness and taper in 6 different positions: along the X and Y axes at points A, B and C (top, center and bottom).





If the measured values exceed the specified values, or if there are scoring or burnt areas on the inner cylinder walls, perform cylinder honing.



There are pistons with an increased repair size (by 0.2 mm). When using a piston with an increased repair size, perform honing so that the clearance between the piston and the cylinder wall corresponds to the standard. In addition, use piston rings with an increased repair size that match the piston of the repair size.

Piston outer diameter

Using a micrometer, measure the outside diameter of the piston skirt.

• Measuring point: 45 mm down from the piston bottom
• Standard diameter: 85.980-86.010 mm

Calculating the clearance between the piston and the cylinder wall

Make calculations based on the piston skirt outside diameter and cylinder inside diameter values (x axis, point B).

(Gap) = (Cylinder diameter) - (Outside diameter of piston skirt)

• Standard clearance: 0.010-0.030 mm

If the clearance exceeds the norm, replace the piston and piston pin assembly.