Preparatory actions and repair procedures without removing the engine from the car (Honda Accord 6)

Clean the engine compartment and the outside surfaces of the power unit using one of a wide range of special solvents. This treatment will prevent dirt from getting inside the engine.

If necessary, depending on the nature of the work to be done, the bonnet can be removed to provide free access to the components to be serviced (see Chapter Body). Cover the car fenders with special covers or just old blankets to avoid accidental damage to the paintwork.

If a suspected vacuum loss or leak of oil, coolant, exhaust gases, etc. indicates that the appropriate gaskets or seals need to be replaced, virtually any of the listed procedures can be performed without removing the engine from the vehicle (in situ). This applies to procedures for replacing the intake manifold and exhaust manifold gaskets, oil pan, cylinder head, and both crankshaft seals.

Dismantling, repair and installation of external components and attachments such as the intake manifold, exhaust manifold, oil pan, water pump, starter, generator, ignition distributor and fuel system components can also be carried out in situ.

Since the cylinder head can be removed from the engine without first removing the power unit, repairs to the camshaft and valve train can also be carried out directly on the vehicle. In addition, the timing belt and timing gear are usually replaced in situ.

In an emergency, without dismantling the power unit, it is also possible to repair and replace piston rings, pistons, connecting rods and connecting rod bearings of the crankshaft. However, this opportunity should not be abused due to the difficulties associated with the need to maintain cleanliness and carry out a number of preparatory procedures.