Disassembling the engine (Mazda Capella GD)

Before starting work, it is necessary to thoroughly clean all external surfaces of the engine. Before doing this, cover all engine openings with a clean cloth to prevent any foreign objects from getting inside the engine. Engine disassembly is described in detail below and grouped under the heading "Repair and Overhaul." This allows us to describe work that can be performed with the engine both installed and removed. to avoid writing off certain dismantling work twice. In case a major disassembly is to be carried out, only individual work steps in the given sequence need to be combined. In general, when disassembling, remember to mark all moving or sliding parts before disassembling so that they can be returned to their original position if they are used again. This is especially important for pistons. valves, covers and bearing shells. The parts must be removed in such a way that they cannot be mixed up. Bearing support surfaces and sealing surfaces must never be marked with a scriber or by punching out numbers. Paint is best for marking. It is best to stick the valves into an upside-down cardboard box so that their numbers can be written next to them. Figure 21 shows the location of the removed valves.



Many parts are made of aluminum and require handling accordingly. If you need to hammer to separate a specific part, use only rubber, plastic or leather hammers. If you don't have a mounting stand, it's best to cut some wooden blocks onto which to mount the engine so that you can access the top and bottom of the engine. If a mounting stand is used, you need to unscrew the exhaust pipe and secure the engine with studs on the stand. After removal, the cylinder head, together with the metal clamp into which the intake manifold studs are screwed, can be clamped in a vice. The general sequence of engine disassembly is given below and specific disassembly details with corresponding captions will be described below. The cylinder head can be removed with the engine installed. The drive belt can be tensioned or replaced with the engine installed. The engine is disassembled in the following sequence.