1.6.4. ignition coil (page 2 of 2)

• Unscrew the plug from the bottom of the oil sump and drain the engine oil into a suitable container (approx. 6.5 pints). The oil will drain easier, if the vehicle has been driven a short distance.
• Slacken the ignition distributor and remove it. If the engine is set to the TDC position for the 1st cylinder it will be a matter of reversing the removal installation later on.
• Remove the distributor support housing. The drive shaft for the oil pump and the distributor must be set to a specific position when the parts are refitted.
• Remove the oil sump bolts evenly and take off the oil sump. A sticking oil sump can be freed by tapping it with a hammer. Avoid to insert a screwdriver between the sealing faces, as this mau damage the sump.
• The oil pump can now be seen at the bottom of the crankcase. Fig. 1.78 shows the location with the engine removed. Unscrew the pump and withdraw it from the crankcase. The drive shaft can also be withdrawn from above.

If the pump has been removed because of low oil pressure, replace the complete assembly, as most probably the pump gearwheels and the housing bore is worn.

Before fitting the pump clean the face of the crankcase without using sharp tools. Refit as follows:

• Insert the drive shaft into the cylinder block with the drive slot in the position (1) in Fig. 1.79. The smaller of the two segments must face towards the cylinder block.
• Push the shaft fully in to engage the pinion on the other end with the skew gear on camshaft. The drive shaft will now rotate, as the teeth engage and the drive slot will move to the position (2). The larger segment of the drive dog will now be facing towards the rear of the cylinder block. If this is not the case, rotate the crankshaft by one full turn.
• Refit the distributor support housing and attach it with the single screw.
• At the bottom of the crankcase check that the dowel sleeve (1) in Fig. 1.78 is in posi-

The drive shaft will now rotate, as the teeth engage and the drive slot will move to the position (2). The larger segment of the drive dog will now be facing towards the rear of the cylinder block. If this is not the case, rotate the crankshaft by one full turn.