11-20
3. Inspection and Adjustment of Powertard Clearances
Service standards (Unit: mm)
Tightening torque (Unit: N·m {kgf·m})
Special tools (Unit: mm)
Inspection and adjustment of the Powertard clearance must be car-
ried out after the inspection and adjustment of the valve clearance
while the engine is cold.
Inspection and adjustment of valve clearances (See 2. “Inspection
and Adjustment of Valve Clearances”.)
[Inspection]
• Remove the rocker cover.
• Bring the No. 1 or No. 6 cylinder piston to the top dead center
(TDC) on the compression stroke according to the following pro-
cedure:
• Crank the engine until the pointer is aligned with the “1 6”
mark on the flywheel.
• This will place either the No. 1 or No. 6 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. 6 cylinder pistons.
Location Maintenance item Standard value Limit Remedy
– Powertard clearance (when engine is cold) 1.0 ± 0.05 – Adjust
Mark Parts to be tightened Tightening torque Remarks
– Lock nut (for locking Powertard assembly adjusting screw) 25 {2.6} –
Mark Tool name and shape Part No. Application
Feeler gauge MH063474 Adjustment of Powertard Clearances
P11605
5
10
1
6
ON-VEHICLE INSPECTION AND ADJUSTMENT
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