Hyundai Tucson Quiz
Engine Mechanical System

Crankshaft

In this manual: Engine Mechanical System
General Information — 17Engine Mechanical System — 51Engine Electrical System — 26Emission Control System — 23Engine/Fuel Control System — 44Clutch System — 12MANUAL TRANSMISSION SYSTEM — 12AUTOMATIC TRANSMISSION SYSTEM — 42Four-Wheel Drive (4WD) System — 14Drive Shaft and Axle — 22Suspension System — 30Steering System — 16Restraint — 21Braking System — 47Body Work (Interior and Exterior) — 145Body Electrical System — 162Heating, Ventilation and Air Conditioning — 39
35steps
~215min
5/5difficulty
1special tools
0102030405031.423N·mlb·ft
Tightening torque found on this page
Done 0 of 35

Components and Component Location

COMPONENTS

1. Crankshaft upper bearing
2. Crankshaft thrust bearing
3. Crankshaft
4. Crankshaft lower bearing		 5. Crankshaft Position Sensor (CKPS)
6. Lower Case
7. Gasket

Repair Procedures

DISASSEMBLY

  1. Remove the engine assembly from the vehicle. (See Engine and Transaxle - Engine and Transaxle)
  2. Remove the transaxle assembly from the engine assembly. Automatic Transaxle (Refer to Automatic Transaxle System - "Automatic Transaxle")
  3. Automatic Transaxle: Remove the drive plate. (Refer to Cylinder Block - "Drive Plate")
  4. Remove the rear oil seal. (Refer to Cylinder Block - "Rear Oil Seal")
  5. Install the engine on an engine stand for disassembly.
  6. Remove the timing chain. (Refer to Valve Timing System - Timing Chain)
  7. Remove the water pump. (Refer to Cooling System - "Water Pump".)
  8. Remove the water inlet pipe and thermostat. Refer to Cooling System - "Thermostat".
  9. Remove the intake manifold. (Refer to Exhaust and Intake System - "Intake Manifold")
  10. Remove the A/C compressor. (Refer to Heating, Ventilation and Air Conditioning - Compressor)
  11. Remove the exhaust manifold. (Refer to Intake and Exhaust System - "Exhaust Manifold")
  12. Remove the cylinder head assembly. (See Cylinder Head - Cylinder Head)
  13. Remove the oil filter. (Refer to Lubrication System - "Engine Oil")
  14. Remove the oil filter. (Refer to Lubrication System - "Oil Pan")
  15. Remove the piston and connecting rod assembly. (Refer to Cylinder Block - Piston and Connecting Rod)
  16. Remove the Oil Pressure Switch (OPS) (A).
  17. Remove the Crankshaft Position Sensor (CKPS) (B).
  18. Check the crankshaft bearing oil clearance.
  19. Remove the connecting rod from the piston.
    1. Remove the lower case bolts.
    2. Remove the main bearing cap bolts.
  20. Check the crankshaft end play.
  21. Lift the crankshaft (A) and remove it from the engine, taking care not to damage the journals.

Inspection

  1. Check the crankshaft bearing oil clearance.
    1. To check the oil clearance between the main bearing and journal, remove the lower case and lower bearings.
    2. Clean each main bearing and journal with a clean cloth.
    3. Place a strip of Plastigage on each main journal.
    4. Install the lower case and lower bearings in place, then tighten the main bolts.
      Torque:
      Step 1: 27.5 ~ 31 N·m
      Step 2: 120 ~ 125°
    5. Remove the lower case and lower bearings.
    6. Measure the width of the Plastigage at its widest point.

      Oil clearance: 0.016 ~ 0.034 mm (0.00063 ~ 0.00134 in.)

    7. If the Plastigage width is too wide or too narrow, remove the upper bearing and lower bearing, then install new bearings with the same color code. Recheck the oil clearance.
    8. If the Plastigage indicates the clearance is still incorrect, immediately use bearings of a smaller or larger size. Recheck the oil clearance. CRANKSHAFT BORE IDENTIFICATION MARK
      Letters are stamped on the block as a size mark for each of the five main bore diameters. Use these, together with the numbers or colors stamped on the crankshaft (main journal size marks), to select the correct bearings.
      Cylinder Block Specifications
      GRADE Mark Inside diameter
      B B 59.000 ~ 59.006 mm
      (2.32283 ~ 2.32307 in.)
      B B 59.006 ~ 59.012 mm
      (2.32307 ~ 2.32330 in.)
      AGAINST AGAINST 59.012 ~ 59.018 mm
      (2.32330 ~ 2.32354 in.)

      Crankshaft Journal Mark
      Crankshaft Specifications
      GRADE Mark OUTER DIAMETER OF PIPE
      I 1 54.954 ~ 54.960 mm
      (2.16354 ~ 2.16378 in.)
      II 2 54.948 ~ 54.954 mm
      (2.16330 ~ 2.16354 in.)
      III 3 54.942 ~ 54.948 mm
      (2.16307 ~ 2.16330 in.)

      Crankshaft Bearing Identification Mark
      Crankshaft Bearing Specifications
      GRADE Mark BEARING THICKNESS
      B BLUE 2.021 ~ 2.024 mm
      (0.07957 ~ 0.07968 in.)
      B BLACK 2.018 ~ 2.021 mm
      (0.07945 ~ 0.07957 in.)
      AGAINST NONE 2.015 ~ 2.018 mm
      (0.07933 ~ 0.07945 in.)
      D GREEN 2.012 ~ 2.015 mm
      (0.07921 ~ 0.07933 in.)
      E YELLOW 2.009 ~ 2.012 mm
      (0.07909 ~ 0.07921 in.)
    9. Select the crankshaft bearing using the selection table. Crankshaft Bearing Selection Table
      BEARING ASSEMBLY CLASSIFICATION CRANKSHAFT BORE IDENTIFICATION MARK
      has) B (B) cc)
      CRANKSHAFT IDENTIFICATION MARK I (1) E (YELLOW) D (GREEN) C (NONE)
      II (2) D (GREEN) C (NONE) B (BLACK)
      III (3) C (NONE) B (BLACK) (BLUE)
  2. Inspect the crankshaft end play. Using a dial indicator, measure the end play by prying the crankshaft forward and backward with a screwdriver. If the end play exceeds the maximum value, replace the center bearing.

    Crankshaft End Play Standard: 0.07 ~ 0.25 mm (0.0028 ~ 0.0098 in.)

  3. Inspect the main journals and crankpin journals. Using a micrometer, measure the diameter of each main journal and crankpin journal. Main journal diameter: 54.942 ~ 54.960 mm (2.16307 ~ 2.16378 in.) Crankpin diameter: 44.954 ~ 44.972 mm (1.76984 ~ 1.77055 in.)

Installation

  1. Install the crankshaft main bearings.
    1. Align the tab of the bearing with the groove in the cylinder block, then press in the upper five bearings (A).
    2. Align the tab of the bearing with the groove in the lower case (B), then install the lower five bearings (A).
  2. Install the thrust washers. Install the two thrust bearings (A) on both sides of the No. 3 journal, with the oil grooves facing outward from the cylinder block.
  3. Install the crankshaft (A) on the cylinder block.
  4. Apply liquid gasket to the upper surface of the lower case.
    1. Use a scraper to remove the old sealant from the sealing surfaces.
    2. The gasket application area on the lower case and cylinder block must be free of foreign material, oil, dust and moisture. Spray cleaner onto the surface and wipe with a clean cloth.
    3. Install a new rubber gasket (A) on the lower case.
    4. Apply liquid gasket to the lower part of the cylinder block. The gasket must be applied continuously to prevent oil leakage. Bead width: 2.5 ~ 3.5 mm (0.10 ~ 0.14 in.) Sealant: Threebond 1217H or equivalent
  5. Place the lower case on the cylinder block.
  6. Install the main bearing cap bolts.
    Using the special service tool (09221-4A000), install and tighten the 10 main bearing cap bolts several times in the sequence shown. Tightening torque Step 1: 27.5 ~ 31 N·m Step 2: 120 ~ 125°
  7. Install the lower case bolts several times, following the sequence shown.

    Tightening Torque: 18.6 ~ 24 N·m

    Make sure the crankshaft rotates freely.
  8. Check the crankshaft end play.
  9. Install the CKPS (Crankshaft Position Sensor) (B).

    Tightening torque: 9.8–11.8 N·m

  10. Install the OPS (Oil Pressure Switch) (A).

    Tightening torque: 9.8–11.8 N·m

  11. Install the remaining parts in the reverse order of removal.

Test yourself

A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.