Repair of the engine removed from the car Opel Astra F (petrol)
Indications for removal of the engine Excessive oil consumption indicates that piston rings, valve seats and/or valve guides require inspection. Check the compression in the cylinders. Check the...
Engine repair — disassembly procedure It is much easier to disassemble the engine and work with it if it is installed on the stand. If there is no stand, the engine can be disassembled by placing...
Cylinder head — disassembly After removing the cylinder head as above, remove the manifolds ( chapter 4 ), spark plug ( chapter 5 ), thermostat housing, and on 1.4 and 1.6 liter engines,...
Cylinder Head — Assembly After cleaning, install the valve parts as expected. Insert the appropriate valve into its guide (if new valves are installed, insert each one in the specific...
Piston/Connecting Rod Assembly — Removal Remove the cylinder head. Remove the sump, oil supply pipe and reflector (if available). If the connecting rods and large connecting rod caps are not marked to...
Crankshaft — removal Remove the cylinder head. Remove the sump, oil supply pipe and reflector (if used). Remove the oil pump. Remove the pistons and connecting rods as outlined in...
Cylinder block / crankshaft — cleaning and inspection Cleaning For a complete cleaning, the plugs should be removed, if required. Drill a small hole in the cork, then insert a self-tapping screw and pry the corks...
Piston/Connecting Rod Assembly — Inspection Before beginning inspection, the piston/rod assembly must be cleaned and the piston rings removed. Carefully pinch the rings over the piston surface and use...
Crankshaft — inspection The crankshaft must be cleaned with kerosene or a suitable solvent and dried, preferably with compressed air. Check the main journals and crankpins for wear,...
Main and connecting rod bearings — inspection It is necessary to check all bearings, including old ones, which will provide valuable information about the condition of the engine. The main reason for...
Engine Repair — Assembly Sequence Before starting assembly, check that all necessary parts are included (in particular gaskets and various bolts), as well as the availability of all necessary...
Piston rings — installation Before installing new piston rings, check the rings and clearances as follows. Position the piston/connecting rod assemblies and new piston ring sets so that...
Engine — first start after repair After installing the engine on the vehicle, check the engine oil and coolant levels. After removing the spark plugs and disconnecting the low voltage coil...
Exhaust gas toxicity control Let the engine warm up to normal operating temperature and check that the preconditions for checking the idle speed and mixture are satisfactory (ignition...