Attention! When installing the oil pump, a new oil pickup pipe gasket and a new O-ring for the oil feed pipe must be used.
Oil pump
Removing
Removing the oil pickup pipe
Removing the oil pump cover
Removing the inner oil pump rotor
Removing the outer oil pump rotor
Unscrewing the plug of the pressure relief valve
Removing the Pressure Relief Valve Spring
Removing the Pressure Relief Valve Plunger
Removing the O-ring from the oil supply pipe
The oil pump is driven through a drive sleeve from the front end of the crankshaft and is located in the drive chain cover.
1. Remove the drive chain cover.
2. Unscrew the two bolts and remove the oil pickup pipe and gasket (see fig. Removing the oil pickup pipe).
3. Unscrew the bolts and remove the oil pump cover (see fig. Removing the oil pump cover).
4. Remove the outer and inner rotors of the oil pump, noting their relative position (see fig. Oil pump inner rotor removal, Oil pump outer rotor removal).
5. On the side of the drive chain cover, unscrew the plug of the oil pressure relief valve and remove the gasket, spring and plunger (see fig. Unscrewing the pressure relief valve plug, Removing the pressure relief valve spring, Removing the pressure relief valve plunger).
6. Thoroughly clean all parts of the oil pump and check their condition. If there is wear on the rotors, they must be replaced as a set. If the oil pump housing or cover is worn, the timing chain cover must be replaced. A new timing chain cover comes with the oil pump.
7. Remove the O-ring from the oil supply pipe at the rear of the pump (see fig. Removing the O-ring from the oil supply pipe).
Installation
Filling the space between the teeth of the oil pump rotors with clean engine oil
1. Install the outer and inner rotors in the oil pump housing according to the previously made marks. Fill the space between the teeth of the outer and inner oil pump rotors with clean engine oil (see fig. Filling the space between the teeth of the oil pump rotors with clean engine oil).
2. Install the oil pump cover and screw on the bolts, tightening them to the required torque.
3. Install a new oil pickup pipe gasket with the rounded edge of the gasket facing the top of the timing chain cover.
4. Install the oil pickup pipe and secure with two bolts.
5. Install a new O-ring to the oil feed pipe at the rear of the oil pump.
6. Lubricate the plunger of the oil pressure relief valve with a thin layer of engine oil and install the plunger, spring, O-ring in sequence and screw the plug, tightening it to the required torque.
7. Install the drive chain cover.