Vehicle: Mazda BT50 and Ford Ranger WEC 3.0 Litre Turbo Diesel
Mazda BT50 and Ford Ranger WEC 3.0 Litre Turbo Diesel Camshaft seized and bent valves after cylinder head was replaced with exchange unit.
The customer fitted an exchange cylinder head to the vehicle after the original cylinder head had been damaged from overheating.
After fitting the exchange cylinder head the customer rang to state that the camshaft had seized causing bent valves.
Upon inspection of the cylinder head it was found that there was a severe lack of lubricant to the camshaft bearing journals causing the camshaft to seize.
The customer carried out further diagnosis on the engine and found that there was no oil supply to the cylinder head from the block at all!
The sump was removed from the engine and upon inspection it was found that the engine oil had been extremely overheated and had melted the plastic oil pick-up in the sump.
The customer replaced the oil pick-up and rechecked oil flow to cylinder head, problem solved!