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CLUTCH 6-15
Clutch
Clutch Plate, Wear, Damage Inspection
•
Visually inspect the friction and steel plates for signs of
seizure, overheating (discoloration), or uneven wear.
•
Measure the thickness of each friction plate [A] at several
points.
If any plates show signs of damage, or if they have worn
past the service limit, replace them with new ones.
Friction Plate Thickness
Standard: 2.72
∼ 2.88 mm (0.107 ∼ 0.113 in.)
Service Limit: 2.4 mm (0.094 in.)
Clutch Plate Warp Inspection
•
Place each friction plate or steel plate on a surface plate
and measure the gap between the surface plate [A] and
each friction plate or steel plate [B] with a thickness gauge
[C]. The gap is the amount of friction or steel plate warp.
If any plate is warped over the service limit, replace it with
a new one.
Friction and Steel Plate Warp
Standard: 0.15 mm (0.0059 in.) or less
Service Limit: 0.3 mm (0.012 in.)
Clutch Spring Free Length Measurement
•
Measure the free length of the clutch springs [A].
If any spring is shorter than the service limit, it must be
replaced.
Clutch Spring Free Length
Standard: 64.8 mm (2.55 in.)
Service Limit: 61.8 mm (2.43 in.)
Clutch Housing Finger Inspection
•
Visually inspect the clutch housing fingers [A] where the
friction plate tangs [B] hit.
If they are badly worn or if there are groove cuts where the
tangs hit, replace the housing. Also, replace the friction
plates if their tangs are damaged.
Clutch Housing Spline Inspection
•
Visually inspect the teeth [A] on the steel plates and the
clutch hub splines [B] for wear.
If there are notches worn into the splines, replace the
clutch hub. Also, replace the steel plates if their teeth are
damaged.
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