Contents: Petrol engines ⇓ Diesel engine ⇓
Various Ford engines are used to drive the drive wheels. All power units are liquid-cooled and are mounted in the engine compartment transversely to the direction of travel. The gearbox is mounted on the engine flange, and the entire power unit is connected to the transverse front beam and the body using two supports and one strut (lever). These pendulum supports prevent vibrations from being transmitted from the power unit to the body.
Petrol engines
The Endura-E's 1.3-litre engine is based on the familiar OHV or HCS engine used in previous models. It is based on the cross-flow principle, meaning that fresh air-fuel mixture is drawn in on one side and exhaust gases exit on the opposite side through the exhaust system. The intake and exhaust valves are arranged alternately in the cylinder head and are driven by pushrods, pushrods and adjustable rocker arms. The camshaft is located on the side of the cylinder block and is driven from the crankshaft by a roller chain. The crankshaft is supported by five bearings in a ductile iron cylinder block and is provided with counterweights for balancing.
The combustion chambers and intake ports are arranged so that the incoming fuel-air mixture is mixed in a vortex direction and actively swirls. Due to this feature, this engine was named HCS (High Compression Swirl - swirl with a high degree of compression). Due to this swirl, combustion occurs faster and more completely, which leads to lower fuel consumption and a lower concentration of toxic substances.
The oil pump is bolted to the side of the cylinder block and is driven by a helical gear from the camshaft. The oil filter is located directly on the oil pump.
The new Zetec-SE engine with a displacement of 1.25 or 1.4 liters is a DOHC engine (two overhead camshafts). One camshaft controls the exhaust valves, and the other controls the intake valves. The camshafts are driven from the crankshaft by a toothed belt. The camshafts act on the valves through tappets. The valve clearance is adjusted using adjusting washers in the plate tappets. However, inspection is only required after 150 thousand km.
The cylinder block is made of aluminum alloy with ductile iron cylinder liners. Crank mechanism (crankshaft bearings and pistons) should not be disassembled, but only piston rings can be replaced separately (this is done in the workshop). The cylinder block contains a water pump, which is driven by the same toothed belt as the camshafts. The oil pump sprocket is driven directly from the crankshaft via an intermediate journal.
To prepare the working fuel-air mixture, all gasoline engines use an electronically controlled injection system that does not require maintenance. The ignition spark is provided by a static ignition system and cannot be adjusted.
Diesel engine
The Endura-DE engine is based on the OHC diesel engine used in previous models.
The cylinder head and cylinder block are made of malleable cast iron. The designation OHC indicates that the cylinder head contains one overhead camshaft. The camshaft and water pump are driven from the crankshaft via a toothed belt. The vertically located valves are driven from the camshaft directly via plate tappets. The valve clearance should be checked periodically as part of maintenance, and for adjustment, adjusting washers of the appropriate thickness are inserted into the plate tappets.
The second toothed belt drives the high-pressure fuel distribution pump, which creates the high pressure of diesel fuel required for its injection into the cylinders.
Original material on the website Mazbook.ru
Warning: Turn off the ignition before working in the engine compartment. The radiator fan may turn on unexpectedly when the engine cools down, which could cause injury.