Perkins New 1000 Series, Workshop Manual, Page: 221 / 290

Workshop Manual, TPD 1350, issue 3 221
21
New 1000 Series
Coolant pump - early gear driven pumps
Identification of the coolant pump is by the last four
digits of the part number, for example 4131E011,
stamped on the front of the pump body.
To remove and to fit 21-2
To remove
1 Drain the cooling system and disconnect the hose
at the inlet connection of the coolant pump.
2 Release the setscrews from the flange of the
coolant by-pass.
3 Release the three setscrews which retain the
coolant pump to the cover of the timing case - two
from the front and one from the rear.
4 Release the setscrews from the rear face of the
timing case, which fasten the pump to the timing case,
and remove the coolant pump (A). Ensure that the "O"
ring (A1) on the cover of the timing case is not lost.
To fit
1 Check the "O" rings on the pump body (A2) and on
the cover of the timing case (A1) for damage. If either
of the "O" rings are damaged, they must be renewed.
Ensure that all joint faces are clean.
2 Check the drive gear of the coolant pump for wear
or other damage. If the gear is damaged, it must be
renewed.
3 Lightly lubricate the "O" ring on the pump body with
clean engine lubricating oil. Fit the pump to the timing
case cover with its gear in mesh with the gear of the
fuel injection pump. The pump is a tight fit in the
cover, but can be pulled into position if the nuts for the
pump studs are gradually and evenly tightened.
Ensure that the "O" ring in the cover remains in
position while the pump is fitted.
Note: The setscrews have a sealant applied to the
threads by the manufacturer. If the original setscrews
are to be used again, the threads of the setscrews
and the threads in which they will be engaged must be
cleaned. A suitable sealant must then be applied to
the threads of the setscrews.
4 Fit and tighten the three setscrews which retain the
pump to the cover of the timing case - two from the
front and one from the rear.
5 Fit a new joint to the flange of the coolant bypass.
Fit the by-pass and tighten the setscrews.
6 Connect the hose to the inlet connection of the
coolant pump and fill the cooling system. Operate the
engine and check for leakage.
2
1
A
A0268
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