Discovery 1 V8 Timing Cover & Fittings
There are two types of timing cover fitted to the V8 Discovery (see also Technical Note on Oil Pumps, on previous pages).
The first type, fitted to carb & efi vehicles up to VIN LA (1994), incorporates a housing for the camshaft-driven oil pump gears on the lower right hand side of the cover. These gears are actually driven off the end of the distributor which is, itself, driven by a skew gear on the camshaft.
The later type - fitted from VIN MA (April 1994) - features a crank-driven oil pump. Known also as the 'intermediate' timing cover, it differs from the Series 2 Range Rover (Pegasus) type in that it has a provision for a distributor - driven, as before, by a camshaft gear.
Although the oil pump design of the later covers is a big improvement over the earlier ones, they cannot easily be retro-fitted to earlier vehicles, as the crank-driven oil pump requires a long-nose crankshaft, not fitted to earlier engines.