DOHC car engine Opel Vectra A (petrol)

General characteristics of the DOHC engine
This Part of Section 2 describes the procedures that are performed for a dual overhead cam engine. Part B must be read together with Part A . The bottom end of...

Engine — removal and installation
Removal 1. Perform the procedure from Section 2A , please note the following differences. 2. After raising the vehicle, remove the lower engine skid plate. 3....

DOHC Engine Specifications
Note: All specifications are the same as the 2.0L SOHC engines unless otherwise noted. General characteristics Type (all models) — 4-cylinder, in-line,...

Engine/Transmission Mounts — Replacement
The procedure for replacing the engine / transmission is similar to that for models with an overhead camshaft (SOHC), see. Section 2A . However, this engine...

Toothed drive belt, sprockets, tensioner pulley and idler pulley — removal, installation and adjustment
Note: The timing belt must be replaced during installation. A two-pronged puller may be required to remove the crankshaft sprocket. Removal 1. Disconnect the...

Toothed drive belt with automatic regulator — removal, installation and adjustment
Removal 1. The actions are similar to those described in Chapter 4 , except that the tensioning mechanism pulley has an automatic adjuster, which simplifies...

Front camshaft oil seal — removal and installation
Note: Use a new timing belt when installing. Removal 1. The front camshaft oil seals can be replaced on an engine installed in a vehicle as follows: 2. Remove...

Camshafts — removal, inspection and installation
Note: Use a new timing belt when installing. Removal 1. Remove the timing belt and associated camshaft sprockets as described in Chapter 4 . 2. If the exhaust...

Cylinder head — removal and installation (engine in a car)
Note: When removing the cylinder head, the engine must be cold. When installing, use new cylinder head bolts, a new cylinder head gasket and a new timing belt....

Cylinder head — removal and installation (engine removed from vehicle)
Note: When installing, use new cylinder head bolts, a new cylinder head gasket and a new timing belt. Tightening torques in Specifications (as stated in...

Cylinder head — disassembly and assembly
Disassembly 1. After removing the cylinder head as described in Chapter 8 , clean its outer surface from dirt. 2. Remove the thermostat housing and thermostat...

Valve lifters — general characteristics
Although the tappets on these engines cannot be disassembled, they should still be carefully inspected for signs of wear on the contact surfaces. Also check...

Front Crankshaft Oil Seal — Replacement
1. The procedure is similar to that described for overhead camshaft (SOHC) models ( see Section 2A ), paying attention to the following. 2. Before...

Pallet — removal and installation
Note: The oil pan gaskets cannot be reused. Prepare new gaskets before removing the oil pan. Removal 1. The procedure is similar to that described for overhead...

Oil pump — removal and installation
Removal 1. Except for the changes noted below, the procedure is the same as described for models with overhead camshaft (SOHC) . 2. If the engine is not...

Oil radiator — removal and installation
Removal 1. To gain sufficient access to remove the oil cooler, the cooling system radiator must be removed (as described in Section 3 ). Alternatively, you can...

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