Pump Check - APRILIA TUONO R FACTORY 2007 Service Station Manual

TUONO R_FACTORY
•
Slide the coolant pump gear (1) upwards and off and remove the pin (3) together with the
washer (4).
DO NOT DAMAGE THE THREAD OF THE COOLANT PUMP SHAFT.
•
Take out the shaft (5) from the coolant
pump towards the coolant pump gear
(1).
REMOVE THE OIL SEAL (6) AND THE GASKET IN THE
SLIDING RING (7) THROUGH TWO HOLES INSIDE THE
CLUTCH COVER.
TO CORRECTLY REMOVE THE TWO PARTS (6) (7), AL-
TERNATELY REPEAT THE FOLLOWING OPERATION ON
BOTH HOLES.
•
Insert a punch in the hole and hit slight-
ly just once with a light hammer. Re-
peat the procedure for the second hole.

PUMP CHECK

•
Check the rotor (2) for damage or
shape distortions and replace it, if re-
quired.
•
Check the coolant pump shaft (5) for
signs of rolling matching the oil seal
sliding area. Replace the shaft, if re-
quired.
•
Measure the hole (8) for the coolant
pump shaft on the clutch cover.
Hole wear limit (8) Max. diam. 10.10 mm (0.3976
in).
•
Check that the material in the gear
toothing (1) of the coolant pump is not
damaged or broken and inspect the
distance of the sealing protrusions (9)
for the pin.
Hole wear limit (9) Max. diam. 3.70 mm (0.1457
in).
Cooling system
COOL SYS - 281