Home ReviewsRefund
Home/Nissan/Frontier/Nissan Frontier D40 (2004-2010)/Repair manual/Engine Mechanical (Qr)/Method by Calculation
Contents Wiring diagrams Section: Engine Mechanical (Qr) All sections

Method by Calculation Nissan Frontier D40

Engine Mechanical (Qr) 3 illustrations ~353 words

Method by Calculation

  1. Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the specified torque. Refer to " «ASSEMBLY»(ref-272340-S07593705012007111800000) " for tightening procedure.
  2. Measure the inner diameter of connecting rod bearing with an inside micrometer. (Bearing oil clearance) = (Connecting rod bearing inner diameter) - (Crankshaft pin journal diameter) Standard: 0.035-0.045 mm (0.0014-0.0018 in)
  3. If the clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer to " «HOW TO SELECT CONNECTING ROD BEARING»(ref-272340-S26758696392007111800000) ".

Scheme 219

Scheme 219: Method of Using Plastigage
Scheme 219: Method of Using Plastigage

Scheme 220

Scheme 220
Scheme 220
  1. Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely. see scheme 211: Checking Connecting Rod Bearing Oil Clearance
  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 bolts to the specified torque. Refer to " «ASSEMBLY»(ref-272340-S07593705012007111800000) " for the tightening procedure. CAUTION: Do not rotate crankshaft.
  4. Remove connecting rod cap and bearing, and using the scale 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»(ref-272340-S36267254282007111800000) ". see scheme 212: Measuring Plastigage Width

Scheme 221

Scheme 221: Method by Calculation
Scheme 221: Method by Calculation
  1. Install main bearings to cylinder block and lower cylinder block, and tighten lower cylinder block bolts to the specified torque. Refer to " «ASSEMBLY»(ref-272340-S07593705012007111800000) " for the tightening procedure.
  2. Measure the inner diameter of main bearing with a bore gauge. (Bearing oil clearance) = (Main bearing inner diameter) - (Crankshaft main journal diameter) Standard: No. 1, 3 and 5 journals: 0.028-0.042 mm (0.0011-0.0017 in) No. 2 and 4 journals: 0.041-0.056 mm (0.0016-0.0022 in) Limit: 0.1 mm (0.004 in)
  3. If the clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and crankshaft main journal diameter to obtain the specified bearing oil clearance. Refer to " «HOW TO SELECT MAIN BEARING»(ref-272340-S41534599972007111800000) ". (Scheme 210): Identifying Inner Diameter Of Main Bearing