Ford Escape: Engine / General Procedures - Balance Shaft Backlash
Special Tool(s) /
General Equipment
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100-002
(TOOL-4201-C)
Holding Fixture with Dial Indicator Gauge |
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303-507 Timing Peg, Crankshaft TDC TKIT-2001N-FLM TKIT-2001N-ROW |
Check
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Install Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
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Rotate the crankshaft slowly clockwise until the crankshaft balance
weight is up against the Crankshaft TDC Timing Peg. The engine is now at
TDC .
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Mark the balancer unit and shafts on the top for reference that the balancer unit is at TDC .
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NOTE:
Due to the precision interior construction of the balancer unit, it should not be disassembled.
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Remove the adjustment shims from the seat faces of the balancer unit.
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NOTE:
Visually inspect the balancer unit gear for damage
and verify that the shaft turns smoothly. If there is any damage or
malfunction, replace the balancer unit.
Install the master adjustment shims (No. 50) on the seat faces of the balancer unit.
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With the balancer unit shaft marks at the TDC
position, slowly install the balancer unit to the cylinder block to
avoid interference between the crankshaft drive gear and the balancer
unit driven gear.
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Torque:
Stage 1:
18 lb.ft (25 Nm)
Stage 2:
38 lb.ft (52 Nm)
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Remove Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
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Rotate the crankshaft to confirm that there are no
meshing problems between the balancer unit gear and the crankshaft gear.
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Install Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
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Rotate the crankshaft slowly clockwise until the crankshaft balance
weight is up against the Crankshaft TDC Timing Peg. The engine is now at
TDC .
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Remove Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
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NOTE:
Measure the backlash and verify that it is within
specified range at all of the following 6 positions: 10 degrees, 30
degrees, 100 degrees, 190 degrees, 210 degrees and 280 degrees. It will
be necessary to reset the measuring equipment between measurements.
NOTE:
The measurement must be taken with the Dial
Indicator Gauge with Holding Fixture, a 5-mm Allen wrench and worm clamp
set up as shown. Mark the Allen wrench with a file 80 mm (3.149 in)
above the driven gear shaft center. Make sure the worm clamp and Allen
wrench are not touching the balance shaft housing.
NOTE:
For an accurate measurement while measuring the gear
backlash, insert a screwdriver as shown into the crankshaft No. 1
crankweight area and set both the rotation and the thrust direction with
the screwdriver, using a prying action as shown.
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Position as shown. Measure the gear backlash.
Use Special Service Tool: 100-002
(TOOL-4201-C)
Holding Fixture with Dial Indicator Gauge.
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Position the Dial Indicator Gauge with Holding
Fixture (1) on the Allen wrench 80 mm (3.149 in) above the driven gear
shaft center (2) on the balancer unit.
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Rotate the crankshaft clockwise and measure the
backlash at all of the following 6 positions: 10 degrees, 30 degrees,
100 degrees, 190 degrees, 210 degrees and 280 degrees.
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Using the backlash measurement, select the proper shims from the Adjustment Shim Selection Table.
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Backlash
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Selection shim (No.)
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Shim thickness
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Remove the balancer unit from the cylinder block.
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Install the selected adjustment shims on the seat faces of the balancer unit.
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Install Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
-
Rotate the crankshaft slowly clockwise until the crankshaft balance
weight is up against the Crankshaft TDC Timing Peg. The engine is now at
TDC .
-
With the balancer unit shaft marks at the TDC
position, slowly install the balancer unit to the cylinder block to
avoid interference between the crankshaft drive gear and the balancer
unit driven gear.
-
Torque:
Stage 1:
18 lb.ft (25 Nm)
Stage 2:
38 lb.ft (52 Nm)
-
Remove Special Service Tool: 303-507
Timing Peg, Crankshaft TDC.
|
|
-
NOTE:
Measure the backlash and verify that it is within
specified range at all of the following 6 positions: 10 degrees, 30
degrees, 100 degrees, 190 degrees, 210 degrees and 280 degrees. It will
be necessary to reset the measuring equipment between measurements.
NOTE:
The measurement must be taken with the Dial
Indicator Gauge with Holding Fixture, a 5-mm Allen wrench and worm clamp
set up as shown. Mark the Allen wrench with a file 80 mm (3.149 in)
above the driven gear shaft center. Make sure the worm clamp and Allen
wrench are not touching the balance shaft housing.
NOTE:
For an accurate measurement while measuring the gear
backlash, insert a screwdriver as shown into the crankshaft No. 1
crankweight area and set both the rotation and the thrust direction with
the screwdriver, using a prying action as shown.
-
Position as shown. Measure the gear backlash.
Use Special Service Tool: 100-002
(TOOL-4201-C)
Holding Fixture with Dial Indicator Gauge.
-
Position the Dial Indicator Gauge with Holding
Fixture (1) on the Allen wrench 80 mm (3.149 in) above the driven gear
shaft center (2) on the balancer unit.
-
Rotate the crankshaft clockwise and measure the
backlash at all of the following 6 positions: 10 degrees, 30 degrees,
100 degrees, 190 degrees, 210 degrees and 280 degrees.
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If the backlash exceeds the specified range of 0.005
to 0.101 mm (0.00019 to 0.0039 in), install a new balancer unit and
repeat the procedure.
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For gas engine mechanical diagnosis and testing, REFER to: Engine (303-00 Engine System - General Information, Diagnosis and Testing). For DTC (Diagnostic Trouble Code) related concerns, REFER to the Master DTC Chart...
Special Tool(s) /
General Equipment
Feeler Gauge
Check
Refer to: Valve Cover (303-01C Engine, Removal and Installation).
NOTE:
Turn the engine clockwise only, and only use the crankshaft bolt...
Other information:
Materials
Name
Specification
Motorcraft® MERCON® ULV Automatic Transmission FluidXT-12-QULV
WSS-M2C949-A, MERCON® ULV
Removal
With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation)...
Inspection
WARNING:
All seatbelt components must be inspected and corrected as
part of any collision repair. Inspect all seatbelt components as
prescribed by Seatbelt Procedure After a Collision found in Section
501-20A General Procedures of this manual...