LR3/Disco 3
The bedplate is a structural casting bolted to the bottom of the cylinder block to retain the crankshaft. The use of a
bedplate further improves rigidity. Iron inserts, cast into the main bearing supports of the bedplate, minimise main bearing
clearance changes due to heat expansion.
Two hollow dowels align the bedplate with the cylinder block.
Beads of sealant seal the joint between the bedplate and the cylinder block.
Sump
The aluminium alloy structural sump is bolted to the bedplate. A windage tray attached to the underside of the bedplate
isolates the oil pan from the disturbed air produced by the rotation of the crankshaft, to prevent oil aeration and improve
oil drainage. A rubber plug at the rear of the structural sump seals the port that provides access to the torque converter
securing bolts. The engine oil drain plug is located at the front right corner of the oil pan.
A bead of sealant seals the joint between the structural sump and the bedplate.
Oil Pump
