Other features of the pistons included solid-type piston skirts, flat top combustion surfaces and reduced top land to cylinder clearance.
Subaru EJ251 and EJ252 engines Model Engine Trans.
Relative to their EJ Phase I predecessors, the pistons for the EJ251 and EJ252 engines had reduced piston pin offset and a molybdenum coating to reduce friction.
Both camshafts were driven by a single belt which had round profile teeth for quiet operation and was constructed of wear-resistant double canvas and heat resistant rubber materials with a wire core.
The crankcase for the EJ251 and EJ252 engines had five main bearings and the flywheel housing was cast with the crankcase for increased rigidity.
Injection and ignition The EJ251 and EJ252 engines had multi-point sequential fuel injection and centrally located spark plugs.
Pistons The EJ251 and EJ252 engines had cast aluminium pistons.
Power Torque Years EJ251 2.