Alfa Romeo Turbodiesel Engine 1929 Repair Instructions PDF (ENGINE OVERHAUL).
The engine is of the four cylinder in line type with onhead camshaft timing controlled by a drive belt, two valves per cylinder, turbine type air boosting system IHI, and indirect injection with low turbulence combustion prechamber.
The clutch – gearbox unit is connected behind the engine and forms an integral part of the engine unit. It is front mounted and set transversally at an inclination of 18°30’ forwards.
It is installed on the frame by suspension type mounts and fixed by two elastic damping supports at the front and by an elastic damping fork type support at the rear.
The instructions given in the following paragraphs refer to the complete overhaul of the engine on the bench, after removing the power unit from the engine. The instructions are subdivided as follows:
– Disassembly of the engine:
removal of the engine accessories and components and disassembly into its main component parts.
– Disassembly and checks of the crankcase:
complete overhauling of the crank mechanisms.
– Cautions for re-assembly:
these include specific re-assembly operations where they differ substantially from the instructions for disassembly.
– Checks and inspections of electrical components of the lubrication circuit.
For re-assembly, the sequence for all the dis-as-sembly instructions described hereafter, should be reversed unless otherwise specified.
The following procedures refer to complete overhauling of the whole engine; it is however possible to use individual parts of these instructions when dealing with specific components.
- Lubrication system
- Engine disassembly
- Cylinder head disassembly
- Checking and inspecting cylinder heads
- Checking and lnspecting the crankcase
- Cautions during reassembly
- Checking electric components of the lubrication circuit
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