8
9
10
11
Repairing coolant pump with high-temperature
and low-temperature parts
46
Reassembling coolant pump
Fig. 8
Press in water pump bearing.
Fit the circlip.
Note:
If you change the seals always install a
new shaft and axial face seals.
Fig. 9
Press boss flush on to bearing shaft.
Fig. 10
Turn water pump housing over Press in new mech-
anical seal with press-fitting sleeve (special tool)
until it stops.
Observe installation note for seal on page 50.
Fig. 11
Press in counterring (arrow) with a suitable pres-
sing tool (may be possible by hand).
Install mechanical seal while “wet”, i.e. to install it,
coat holding sleeve and water pump shaft with a
mixture of either 50% water and 50% cleaning
spirit or 40% to 50% antifreeze agent as per MAN
324 and water.
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