- Insert the shaft, with bearings, into its housing by
pushing and turning it at the same (turn anticlock-
wise for tightening)
- Turn it rapidly to the end of the threading.
- Should this operation prove difficult, do not carry
on; instead, start over by reheating the crankcase
N.B.
FAILURE TO OBSERVE THIS RULE MAY RESULT IN DAM-
AGE TO THE THREAD OF THE COPPER INSERT ON THE
IMPELLER, OR SEPARATION OF THIS FROM THE IMPEL-
LER ITSELF.
Specific tooling
020169Y Tool for removing and installing water
pump shaft
Using the air heater, warm up the water pump
bearing housing, without directing the air flow di-
rectly against the oil seal
- Lubricate the end of the water pump shaft on the
oil seal side, using the recommended product.
Recommended products
Lithium-based grease Lithium-based grease,
suitable for various uses.
Yellow grease ISO L-X-BCHA 3 - DIN 51 825 K3K
-20
Thermostat
Removal
To remove the thermostat, proceed as follows:
- Disconnect the cooling pipe from the engine big
end, partially emptying the system.
- Remove the cylinder head .
- Unscrew and remove the screws fastening the
thermostat.
Cooling system NRG 50
COOL SYS - 222
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