General information
Engine - 4-cylinder, in-line with one or two overhead camshafts (depending on the model), mounted transversely on the front of the vehicle.
The crankshaft rotates in five armored bearings, the central bearing has liners with thrust washers to ensure the desired axial clearance.
The connecting rods are attached to the crankshaft with armored connecting rod bearings. On single overhead cam models (SOHC), the pistons are attached to the connecting rods by piston pins, which are fixedly seated in the hole in the upper head of the connecting rod. The pistons are made of aluminum alloy and have three rings: two compression and one oil scraper.
The camshaft on SOHC engines is driven from the crankshaft by means of a toothed belt. There are two valves per cylinder (one inlet and one outlet), controlled via rocker arms, which are supported on the rotary axle, by hydraulic self-adjusting pushers.
The intake and exhaust valves are closed by a single spring and move in guides that are pressed into the cylinder head.
The gear type oil pump is housed in a casing attached to the front of the cylinder block and is driven directly from the crankshaft. The lubrication system uses a full flow oil filter.
The distributor is driven directly from the camshaft. On carburetor models, a mechanical fuel priming pump is driven from the front end of the camshaft. The cooling system pump is located on the front side of the cylinder block and is driven by a timing belt.
IN Section 2A describes repair operations for the SOHC engine Many operations and specifications for the DOHC engine are similar to those described for the 2.0 liter SOHC engine. However, inconsistent procedures are detailed in Section 2B.
Engine identification codes
Before ordering spare parts, or performing any repair or overhaul of the engine, it is necessary to determine the exact type of engine. Later production engines are superficially similar, but often have significant differences in repair operations, even though they may have the same displacement and model year.
The subchapters in this Section mainly indicate the type of engine on which certain operations are carried out. Check first the engine code which is on the horizontal surface on the exhaust manifold side of the cylinder block. On late model engines, the code is located on the flange connecting the cylinder block to the transmission, next to the dipstick for measuring the engine oil level.
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