Description of engine design 1.8L TDI Engine in Section The Focus is powered by two compact four-cylinder petrol engines in four different power outputs, plus a four-cylinder 1.8-litre diesel engine...
Engine repair in a workshop or do it yourself? Despite the robust design, Focus engines are, of course, not immune to the occasional unpleasant defect. Extensive repairs and precise installation work should be left...
Description of the main engine components Engine block: all rotating and oscillating components of the crank mechanism and oil supply are combined here. On the periphery of the engine block there are auxiliary...
Basic concepts of engine building Four-stroke principle 1. Intake (1st stroke): the piston slides from TDC to BDC. The intake valve opens, the fuel-air mixture flows into the cylinder. 2. Compression...
Spark plugs Focus works with these candles Engine Spark plug specifications 1.4 Zetec-SE (55 kW/75 hp) Motorcraft AZFS 22C 1.6 Zetec-SE (74 kW/100 hp) Motorcraft AZFS 2 2C...
Over-revving and engine durability Over-revving shortens engine life. When you rev your engine too much, it can cause uncontrolled vibrations in the crank or valve train. If the vibration becomes too...
Measuring compression pressure Warm up the engine before measuring (operating temperature). This sets the mounting clearance of all moving parts. Switch off the ignition (terminal 15), disconnect the...
Compression pressure decreases If the compression pressure drops in one of the following units, then, from experience, the reasons are as follows: intake manifold or intake damper - leaky intake valve...
Checking the V-belt The auxiliary units (generator, water pump, etc.) in the Focus are driven by a V-belt, in the new OHC units this job is done by a 6K-Poly-V belt (multi-groove V-belt)....
Installation of V-belt Never tighten the V-belt on the belt pulley with a screwdriver. Otherwise, as a result of kinks in the V-belt frame, you will already program its subsequent damage....
Timing belt and camshaft The valve train of the Zetec and Endura-Turbodiesel engines is driven by a toothed belt. It rotates on pulleys outside the crankcase. Toothed belts are not subject to...
Diagnostics — knocking in the engine compartment If the engine is cold, then knocking in the engine compartment is not necessarily a cause for concern. On the contrary, when the engine is warm, knocking and noises...
Help with cylinder head gasket problems Help with cylinder head gasket problems Identification feature Reasons/Features (A) The coolant level keeps dropping Coolant enters the combustion chambers in very small...