Method of Using Plastigage Nissan Versa II

Method of Using Plastigage

1. Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
2. Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil holes.
3. Install connecting rod bearings to connecting rod and cap, and tighten connecting rod cap bolts to the specified torque. Refer to " «DISASSEMBLY AND ASSEMBLY»(ref-605933-S21985235282014032500000) ". CAUTION: Do not rotate crankshaft.
4. Remove connecting rod cap and bearing, and using the scale (A) on the plastigage bag, measure the plastigage width.

Note. The procedure when the measured value exceeds the limit is same as that described in the "Method by Calculation".

Scheme 243

Scheme 244

1. Install main bearings (3) to cylinder block (1) and main bearing cap (2), and tighten main bearing cap bolts to the specified torque. Refer to " «DISASSEMBLY AND ASSEMBLY»(ref-605933-S21985235282014032500000) ".
2. Measure the inner diameter (B) of main bearing (3) with a suitable tool. (Bearing oil clearance) = (Main bearing inner diameter) - (Crankshaft main journal diameter) Standard and Limit: Refer to " «MAIN BEARING»(ref-605933-S31282837182014032500000) ".
3. If clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and crankshaft main journal diameter to obtain specified bearing oil clearance. Refer to " «MAIN BEARING»(ref-605933-S31282837182014032500000) ".

Scheme 245

1. Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
2. Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil holes.
3. Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the specified torque. Refer to " «DISASSEMBLY AND ASSEMBLY»(ref-605933-S21985235282014032500000) ". CAUTION: Do not rotate crankshaft.
4. Remove main bearing cap and bearings, and using the scale (A) on the plastigage bag, measure the plastigage width. NOTE: The procedure when the measured value exceeds the limit is same as that described in the "Method by Calculation".

Scheme 246

1. When main bearing cap is removed after being tightened to the specified torque with main bearings (1) installed, the tip end of bearing must protrude (B). Refer to " «DISASSEMBLY AND ASSEMBLY»(ref-605933-S21985235282014032500000) ". Standard: There must be crush height.
2. If the standard is not met, replace main bearings.

Scheme 247

1. When connecting rod cap is removed after being tightened to the specified torque with connecting rod bearings (1) installed, the tip end of bearing must protrude (B). Refer to " «DISASSEMBLY AND ASSEMBLY»(ref-605933-S21985235282014032500000) ". Standard: There must be crush height.
2. If the standard is not met, replace connecting rod bearings.

Scheme 248

1. Measure the outer diameters (d1) and (d2) at two positions as shown below.
2. If reduction appears in places other than (B) range, regard it as (d2). Limit [(d1) - (d2)]: 0.2 mm (0.0078 in)
3. If it exceeds the limit (a large difference in dimensions), replace main bearing cap bolt with a new one.