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Vauxhall Workshop Service and Repair Manuals

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Positive Crankcase Ventilation Hose/Pipe/Tube Replacement - 1.6L LLU > < Crankshaft and Bearing Cleaning and Inspection - LDE, LED, LFJ, LXV, 2H0, LUW, LFH

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Crankshaft and Bearing Cleaning and Inspection (1.6L LLU)

Special Tools

•  EN-45059   Torque Angle Sensor Kit
•  GE-571-B   Dial Gauge

For equivalent regional tools, refer to Special Tools .

Crankshaft End Play, Check


           2190913



Note:  Crankshaft attached with crankshaft bearing caps.
1. Install the GE-571-B   gauge (1).
  •  Install in the holder on the front of the engine block.
  •  Place the dial gauge plunger against the crankshaft and adjust.
2. Measure the longitudinal play of the crankshaft.
  •  Move the crankshaft in the longitudinal direction.
  •  Permissible crankshaft end play: 0.092-0.24 mm (0.0036-0.0094 in)
3. Remove the GE-571-B   gauge .

Crankshaft Out-of-Round, Check


           2190919



Note:  Crankshaft removed.
1. Insert the crankshaft in the engine block.
2. Install the GE-571-B   gauge (1).
  •  Attach to the bracket on the engine block.
  •  Place the dial gauge plunger against the crankshaft bearing journal and adjust.
3. Check the rotational play of the crankshaft.
  •  Turn the crankshaft evenly.
  •  Maximum permissible rotational play: 0.03 mm (0.0011 in).
4. Remove the GE-571-B   gauge .

Check Crankshaft Bearing Clearance (With Plastigage)


           2190912



Note: 
•  Crankshaft removed.
•  Do not rotate the crankshaft.

1. Lay on plastigage.
  Lay out plastigage (flexible plastic thread) around the entire width of the con-rod bearing journal (1).

Caution: Refer to Fastener Caution .

Note: 
•  Note the correct tightening sequence.
•  The bolts can be reused for checking the crankshaft bearing play.

2. Install the crankshaft bearing cap. Tighten the 2 crankshaft bearing cap bolts in 3 passes. Use the EN-45059   sensor kit :
  •  First pass to 50 N·m (37 lb ft)
  •  Second pass to 45°
  •  Third pass to 15°
3. Remove the 2 crankshaft bearing cap bolts.

           2190914



Note:  When reading the value, do not confuse millimeters and inches on the measuring scale (1).
4. Measure the crankshaft bearing play.
  •  Compare the width of the flattened plastic thread (arrow) to the measuring scale (1).
  •  Permissible crankshaft bearing play: 0.005-0.059 mm (0.0002-0.0023 in).

Check Crankshaft Bearing Clearance (With Micrometer Gauge Internal Measuring Device)


Note: 
•  Note the correct tightening sequence.
•  The bolts can be reused for checking the crankshaft bearing play.

1. Install the crankshaft bearing cap with the crankshaft bearing clips to the cylinder block.
  Tighten the 2 crankshaft bearing cap bolts in 3 passes. Use the EN-45059   sensor kit :
  •  First pass to 50 N·m(37 lb ft)
  •  Second pass to 45°
  •  Third pass to 15°

           2026849


2. Install the inner plunger and calibrate with the micrometer gauge (1).

           2026850


3. Measure the crankshaft bearing diameter at 3 points.
  •  Measure at points A, B and C with the internal measuring device.
  •  Calculate the average crankshaft bearing diameter.
  •  Formula: A + B + C /3.

           1935590


4. Measure the crankshaft bearing journal diameter at 2 points.
  Measure at points I and II with the micrometer gauge.
5. Calculate the average crankshaft bearing journal diameter.
  Formula: I + II/2.
6. Determine the crankshaft bearing play.
  Calculation formula: average crankshaft bearing diameter minus average crankshaft bearing journal diameter.
7. Nominal-Actual comparison.
  Permissible crankshaft bearing play: 0.005-0.059 mm (0.0002-0.0023 in).

Positive Crankcase Ventilation Hose/Pipe/Tube Replacement - 1.6L LLU > < Crankshaft and Bearing Cleaning and Inspection - LDE, LED, LFJ, LXV, 2H0, LUW, LFH