Chevrolet Sonic Repair Manual: Crankshaft and Bearing Cleaning and Inspection
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
-
Note:
Crankshaft attached with crankshaft bearing caps.
- 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.
- Measure the longitudinal play of the crankshaft.
- Move the crankshaft in the longitudinal direction.
- Permissible crankshaft end play: 0.100?E.202 mm (0.0039?E.0080 in)
- Remove the GE-571-B gauge .
- Crankshaft Out-of-Round, Check
-
Note:
Crankshaft removed.
- Insert the crankshaft in the engine block.
- Install the GE-571-B gauge .
- Attach to the bracket on the engine block.
- Place the dial gauge plunger against the crankshaft bearing journal
and adjust.
- Check the rotational play of the crankshaft.
- Turn the crankshaft evenly.
- Maximum permissible rotational play: 0.03 mm (0.001 in).
- Remove the GE-571-B gauge (1).
- Check Crankshaft Bearing Clearance (With Plastigage)
-
Note:
- Crankshaft removed.
- Do not rotate the crankshaft.
- 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.
- 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 Y (37 lb ft)
- Second pass to 45°
- Third pass to 15°
- Remove the 2 crankshaft bearing cap bolts.
Note:
When reading the value, do not confuse millimeters and
inches on the measuring scale (1).
- Measure the crankshaft bearing play.
- Compare the width of the flattened plastic thread (arrow) to the
measuring scale.
- Permissible crankshaft bearing play: 0.005?E.059 mm (0.0002?E.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.
- 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 Y (37 lb ft)
- Second pass to 45°
- Third pass to 15°
- Install the inner plunger and calibrate with the micrometer gauge (1).
- 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.
- Measure the crankshaft bearing journal diameter at 2 points.
Measure at points I and II with the micrometer gauge.
- Calculate the average crankshaft bearing journal diameter.
Formula: I + II/2.
- Determine the crankshaft bearing play.
Calculation formula: average crankshaft bearing diameter minus average crankshaft
bearing journal diameter.
- Nominal-Actual comparison.
Permissible crankshaft bearing play: 0.005?E.059 mm (0.0002?E.0023 in).
Note: The crankshaft position sensor system variation learn procedure
is required when the following service procedures have been performed, regardless
of whether DTC P0315 is set:
...
Special Tools
EN-45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools
Note: Inspect the installation position.
Install the crankshaft bearing cl ...
Other materials:
Stationary Window Waterleak Repair
Warning: If any water enters the vehicle interior up to the level
of the carpet or higher and soaks the carpet, the sensing and diagnostic module
(SDM) and the SDM harness connector may need to be replaced. The SDM could be
activated when powered, which could cause deployment of the air ...
Steering Linkage Inner Tie Rod Inspection
Special Tools
GE-8001 Dial Indicator Set
For equivalent regional tools, refer to Special Tools.
Note: This inspection procedure does not supersede local government
required inspections that have more stringent requirements.
Turn the ignition key to the ON position with the eng ...
Intake Manifold Cleaning and Inspection
Clean the intake manifold mating surfaces.
Inspect the intake manifold (2) for damage.
Inspect the intake manifold for cracks near metallic inserts.
Inspect the crankcase ventilation passages in the intake manifold face for
blockage.
Warning: Wear safety glasses in or ...
© 2014-2022 Copyright www.csmans.com

0.0088