Fav 900
Engine /Cooling system
Removing and refitting water pump
G
Repair
Fav 900 chassis number 23/3001 and up
14.2.2001
2050
000003
G
a
4/4
Capitel
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Removing and refitting water pump
When reparing do not replace pump unless a leak has been found.
Depending on design, the sliding ring gasket of the water pump may allow small amounts of coolant to
leak which may lead to water marks underneath the drain hole.
This does not call for a pump replacement.
It is advisable to check out the following points before replacing or repairing the pump:
Bullet-List
●
Is there a visible and repeated loss of water from the coolant on the circuit.
●
Whether the loss is caused by discharge from the expansion tank (e.g. too full) or by leakages from
the hoses, radiators etc.
Water pump needs to be replaced only if water is dripping while the engine is running or after it is
switched off.
Text-module
Fitting instructions for sliding ring gasket :
The ring gasket must be mounted "wet". Coat the shaft and sleeve (4) with a mixture of 50 % Water und
50 % alcohol or 35 % to 50 % antifreeze.
Text-module
Do not use any other lubricant
Fit gasket "wet", i.e. coat retaining collar (1) and pump shaft (2) with a mixture of 50% water and 50%
alcohol or a mixture of water and 35 to 50 % antifreeze to MAN in-house standard 324.
If there are any signs of scoring however slight, or other minor damage, apply a bead of Dirko
Transparent sealing agent.
Position gasket with plastic cap (3) on shaft (1) and using assembly tool, press into housing until tool
makes contact with the housing. Remove plastic cap.
PM-Picturemodule
Text-module
Note:
Investigations have shown that in most cases pump damage is caused by the use of unsuitable
coolants.
For trouble free operation use only radiator anti-corrosives by Fendt .
PMTAB_Picture
