Repair operations performed without removing the engine (Mazda Capella GF)

Many major engine repairs can be performed without removing the engine from the vehicle.

Before carrying out any work, wash the engine compartment and the car body with a special oil-removing solution. This will make your job easier and reduce the chance of dirt getting inside the engine.

Depending on the work to be done, it may be convenient to remove the hood to facilitate access to the engine from all sides (in this case, refer to chapter 11). To protect the paint on the wings from damage, cover them with a thick cloth.

Without removing the engine, it is possible to replace most seals and gaskets that, when damaged, could cause fluid or gas leaks. These include cylinder head gaskets, manifolds, oil pans, crankshaft and camshaft seals, etc.

Without removing the engine from the car, you can remove almost all external devices for repair, such as the water and oil pumps, starter and generator, elements of the ignition system and fuel system

Since the cylinder head can be removed from the engine without dismantling it, all the systems located on it can be repaired - manifolds, valves, rocker arms, camshafts and their drive.

In exceptional cases, due to a lack of equipment or time, it is even possible to perform a moderate engine overhaul, replacing pistons, piston rings, connecting rods, and bearings, although this is not recommended.