Check the mounting web for cracks. Check the housing for dents or raised surfaces. Replace the damper if any
of these defects are identified. Refer to replacement procedure in this section.
Remove the viscous vibration damper. Refer to replacement procedure in this section.
Clean the damper with a solvent cleaner.
The viscous damper is filled with a silicone fluid. After many hours of use, the silicone fluid may become thicker
and expand. To determine if the damper thickness is correct, remove the paint from the damper in four locations on either side of the damper. Measure and record the thickness of the damper in four places. Measure the thickness 3.175 mm [0.125 inch] from the out side of the damper. Replace the damper if its thickness varies by more than 0.25 mm [0.010 inch].
Spray the damper with spot check developer, Type SKD-NF or its equivalent. Heat the damper in an oven
(rolled lip side down) at 93°C [200°F] for 2 hours.
Caution: Wear protective gloves to prevent personal injury when handling parts that have been heated.
Remove the damper from the oven and check for fluid leakage. If there is leakage, replace the damper.
Refer to replacement procedure in this section.
Tighten crankshaft pulley/vibration damper capscrews.
Torque Value: 125 N®m [92 ft-lb]
