Information taken from Rover 2000 workshop manual
Lubrication
| Type | Full pressure |
| Nominal pressure | 50-60 lb/sq.in (3.5 to 4.2 kg/cm2) at 30mph (50kph) |
| Sump capacity on single carburetter engines | 8 pints (4.5 litres) plus one pint (0.5 litres) after fitting new filter |
| Sump capacity on twin carburetter engines | 9 pints (5 litres) plus one pint (0.5 litres) after fitting new filter |
| Oil pump | |
| Position | external on right hand side of cylinder block |
| End-float, outer rotor | 0.005 inc (0.12 mm) |
| End float, inner rotor | 0.005 inc (0.12 mm) |
| Rotor diametrical clearance | 0.010 in (0.25 mm) |
| Clearance between lobes of inner and outer rotors | 0.006 mm (0.15 mm) |
| Oil pressure release spring | |
| Free length | 2.673 in (67.8 mm) |
| Load, fitted | 22 lb (10 kg) |
| Number of working coils | 14 |
| Oil cooler | |
| On twin carburettor engines this is situated as a seperate compartment in the base of the main coolant radiator. The cooler is in series with the oil pump delivery side and the main oil gallery in the cylinder block. | |
| Oil filter | |
| Full-flow internal | Gauze pump intake filter |
| Full-flow external | AC Delco No. 7965022, Type SC |
| Dipstick position | Right hand side of engine |
| Oil pressure light - early models | The green light on instrument panel operates when pressure drops below 10 lb/sq.in (0.70 kg/cm2) |
| Oil pressure light - late models | The critical pressure is 18 to 28 lb/sq.in (1.2 to 1.9 kg/cm2) |
Capacities
| Liquid | Metric (Litres) |
Imperial (pints) |
| Engine sump oil - single carburettor models | 4.50 | 8.00 |
| Engine sump oil - twin carburettor models | 5.00 | 9.00 |
| extra when refilling after fitting new filter | 0.56 | 1.00 |
| Automatic gearbox (Automatic Transmission Fluid) | 7.00 | 12.00 |
| Manual four speed gearbox (engine oil) | 1.00 | 1.75 |
| Final drive unit (gear oil) | 1.50 | 2.50 |
| Cooling system | 10.00 | 17.00 |
| Fuel tank | 55 litres | 12 gallons |
| Fuel tank - including reserve of | 6 litres | 1.25 gallons |
