INSPECTION AND ADJUSTMENT OF VALVE CLEARANCES
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2006 Mitsubishi Fuso FE Series
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FE-145
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VALVE CLEARANCES SERVICE STANDARDS
Service standards (Unit: mm {in.})
Location Maintenance item Standard value Limit Remedy
- Valve clearance (when cold)
Intake valve 0.4 {0.016} Exhaust valve 0.5 {0.020} -
Adjust
TIGHTENING TORQUE SPECIFICATIONS
Tightening torque (Unit: N.m {ft.lbs, kgf.m})
Mark Parts to be tightened Tightening torque Remarks
- Lock nut (adjusting screw stopping) 20.6 {15,2.1} -
SPECIAL TOOLS REFERENCE
Special tools
Mark Tool name and shape Part No. Application
Cranking handle MH063704 Turning the fan pully
Fig. 24: Cranking Handle
Valve clearances should be checked and adjusted as follows while the engine is still cold.
Inspection
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2006 Mitsubishi Fuso FE Series
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CAUTION:
Never cut off the engine electronic control unit power supply
when cranking the engine.
Remove the rocker cover.
Disconnect the injector connector.
Bring the No. 1 or No. 4 cylinder piston to the top dead center (TDC) on the compression stroke
by the following procedure:
Hook onto the grooves in the fan pulley.
Turn the fan pulley in the illustrated direction to align the pointer with the "I, IV" or "1"
to "4" mark on the flywheel.
This will place either the No. 1 or No. 4 cylinder piston at TDC on the compression
stroke. The cylinder in which the rocker arms for both the intake and exhaust valves can be
pushed down by hand by the valve clearance amounts has its piston at TDC. Rotate the
engine by one full turn to switch the TDCs of the No. 1 and No. 4 cylinder pistons.
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2006 Mitsubishi Fuso FE Series
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FE-145
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2006 Mitsubishi Fuso FE Series
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FE-145
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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trailer.net/TT/common/html/printart.htm
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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trailer.net/TT/common/html/printart.htm
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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trailer.net/TT/common/html/printart.htm
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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trailer.net/TT/common/html/printart.htm
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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trailer.net/TT/common/html/printart.htm
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2006 Mitsubishi Fuso FE Series
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compression
compression
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2006 Mitsubishi Fuso FE Series
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Fig. 25: Aligning Crankshaft Pulley For Adjusting Valve Clearances
With the No. 1 or No. 4 cylinder piston at TDC, measure the clearance of the valves marked
with a circle in the table below.
VALVE CLEARANCE ADJUSTMENT REFERENCE CHART
Cylinder
No. 1 2 3 4
Valve IN EX IN EX IN EX IN EX
No. 1
0 0 0 - - 0 - cylinder
piston at
TDC on
stroke
No. 4
- - - 0 0 - 0 0
cylinder
piston at
TDC on
stroke
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2006 Mitsubishi Fuso FE Series
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FE-145
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Fig. 26: Measuring Valve Clearance
To insert the thickness gauge under the adjusting screw pad, push the pad at the bottom on one
side with a flat-blade screwdriver or a similar tool. Insert the thickness gauge into the small space
created under the other side of the pad, as shown in the illustration.
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2006 Mitsubishi Fuso FE Series
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FE-145
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Fig. 27: Inserting Thickness Gauge
The thickness gauge cannot be inserted under the adjusting screw pad without carrying out the
above step, as the pad will block the thickness gauge as shown in the illustration.
The thickness gauge must have a slight drag when taking measurements.
If the thickness gauge can be moved without any resistance, the measurement will be incorrect.
If the measurements are not within the standard value range, adjust the value clearance by the
following procedures.
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2006 Mitsubishi Fuso FE Series
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Fig. 28: Pad Blocking Thickness Gauge
Adjustment
Adjust the valve clearance by loosening the lock nut and rotating the adjusting screw so that the
thickness gauge can only be moved with a slight drag.
After the adjustment, hold the adjusting screw in position with a screwdriver and tighten the
lock nut to the specified torque.
Recheck the valve clearance with the thickness gauge, and readjust if the measurements are not
within the specified value range.
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2006 Mitsubishi Fuso FE Series
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FE-145
8/24/2012
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Page
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2006 Mitsubishi Fuso FE Series
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FE-145
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Page
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2006 Mitsubishi Fuso FE Series
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FE-145
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Fig. 29: Adjusting Valve Clearance
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