Gasoline engine OHC car Ford Scorpio 1

Technical characteristics of OHC engines
The engine is a petrol, four-stroke, four-cylinder, in-line, water-cooled engine with a camshaft in the cylinder head and is mounted longitudinally in front of the...

Engine adjustment
Engine components ONS 1 - exhaust manifold, 2 - thermostat, 3 - thermostat housing, 4 - camshaft toothed pulley, 5 - toothed belt housing, 6 - toothed belt, 7 - lever, 8...

Repairs that do not require engine removal
The following operations can be performed on the engine installed in the vehicle: removing and installing a timing belt; removing and installing the cylinder head;...

Removal and installation the timing belt
Removal the timing belt tensioner using key 21.012 1 – tensioner, 2 – spring, 3 – adjusting bolt, 4 – tensioner roller Installation signs of the gas distribution system...

Removal the cylinder head
Cylinder head assembly 1 – cylinder head cover, 2 – pressure plates, 3 – cover gasket, 4 – camshaft, 5 – camshaft mounting plate, 6 – head mounting bolt, 7 – valve lever...

Disassembly and assembly of the cylinder head
Longitudinal fixation of the camshaft 1 – mounting plate, 2 – camshaft Disassembly 1. Place the cylinder head in the front and rear parts on two wooden blocks. 2. Remove...

Installing the cylinder head
Cylinder head bolt tightening sequence Installing the cylinder head cover gasket 1. Clean the gasket mating surfaces on the upper surface of the cylinder block and the...

Removal and installation the oil pan
Removal 1. Remove the negative cable from the battery. 2. Raise and secure the front of the vehicle. 3. Remove the crankcase guard and drain the engine oil. 4. Remove...

Replacing the front crankshaft seal ring
1. Remove the timing belt and crankshaft pulley. 2. To remove the front crankshaft sealing ring, drill two small holes in the ring, screw two self-tapping screws into...

Replacing the rear crankshaft seal ring
1. Remove the flywheel. 2. To remove the rear crankshaft sealing ring, drill two small holes in the ring, screw two self-tapping screws into them, and use pliers to pull...

Replacing engine mounts
Engine mount fastening 1. Unscrew the two nuts securing the engine brackets to the supports. 2. Raise and secure the front of the vehicle. 3. Raise the engine with a...

Removal and installation the engine
Engine mount components 1 – cross beam, 2 – elastic support, 3, 4 – engine mount brackets Removal The engine is removed without the gearbox upwards from the engine...

Disassembling the engine
Engine Gaskets and O-rings 1 - Oil deflector caps, 2 - Head cover gasket, 3 - Intake manifold gasket, 4 - Carburetor gasket, 5 - Head gasket, 6 - Rear crankshaft sealing...

Identification of interacting parts
Marks on the main bearings indicating a 0.1 mm larger bearing seat The marks are indicated by arrows. Crankshaft Bearing Size Designation Marks Main bearing seat...

Engine assembly
Identification of main and connecting rod bearing caps 1–5 – main bearing caps (designations in circles), 6 – connecting rod bearing caps, the circle shows an enlarged...

Replacing pistons
Caution! Always replace the four pistons together with the pins. If one cylinder needs to be ground, all pistons together with the pins should be ground and replaced....

Removal and installation the intermediate shaft
Intermediate shaft mounting thrust plate Removal and installation the intermediate shaft 1 – cover, 2 – gasket, 3 – sealing ring, 4 – intermediate shaft, 5 – mounting...

Gas distribution system
Replacing the camshaft sealing ring 1. Disconnect the ground cable from the battery and drain the coolant from the cooling system (see subsection 4.2.1 ). 2. Disconnect...

Starting the engine after major repairs
1. After installing the engine in the vehicle, check the oil and coolant levels. 2. Remove the spark plugs and turn off the ignition system. 3. Crank the engine with the...

OHC engine lubrication system
Lubrication system 1 – oil pump, 2 – oil pan, 3 – oil filter, 4 – oil level indicator Engine lubrication circuit Installing the oil supply line to the camshaft bearings...

Crankcase ventilation system
Crankcase ventilation system (with carburetor) 1 – control valve, 2 – separator, 3 – filter in the oil cap Crankcase ventilation system (with fuel injection system)...