LUBRICATING SYSTEM - L3
As the pump rotors rotate, the pockets formed
between the rotor lobes increase and then decrease in
volume to propel the oil from the suction side to the
pressure side of the pump.
To Remove the Oil Pump
1.
Remove the sump securing setscrews and
withdraw the sump from the engine. Remove
the strainer from the suction pipe of the oil pump
(see Fig. L.2). With lowline engines, the sump
strainer is of a different pattern to that shown in
Fig. L.2. but its removal is similar.
2.
Disconnect and remove the suction pipe.
3.
Disconnect and remove the oil delivery pipe
between the pump and relief valve housing.
4.
Remove the crankshaft pulley, timing case front
cover,
timing
gears
and
timing
case
as
described in the appropriate section.
5.
Remove the idler gear circlip and idler gear (see
Figs. L.3 and L.4).
6.
Remove the three setscrews securing the pump
to No. 1 Main bearing cap and with draw the
pump from the cap (see Fig. L.5).
Fig. L.2.
Removing Sump Strainer from Oil Pump Suction Pipe.
Fig. L.3.
Removing the Oil Pump Idler Gear Retaining Circlip.
To Dismantle the Oil Pump
1.
With the pump assembly suitably held in a vice
remove the oil pump drive gear retaining circlip
(where fitted) and using a suitable extractor
remove the drive gear.
Fig. L4.
Removing the Oil Pump Idler Gear
