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Source – Volvo AB, Göteborg, Sweden page 2(35)
Reprint 2001 Karl Eric Målberg
Introduction
The Volvo 1800 S is a two-door sports car. The car is a two-seater but there is space
for a further two passengers in the rear seat. The body is of integral construction so
there is no frame as such. The front and rear suspension, the engine and the
transmission are attached directly to the body. The body surface is cellulose applied
over a rust-protective primer.
The car is protected from theft by having the ignition switch and the ignition coil
connected through the medium of armored cable.
The instruments have been located on the instrument panel so that they are very
easy to see and in keeping with the sports character of the car: revolution counter,
temperature gauge for oil as well as water, loud tone horn, etc. The operation of the
various controls and adjusting instructions for the seats, etc are described in this
chapter in more detail.
Description
Engine
The engine is a four-cylinder, water-cooled gasoline engine with overhead valves.
The max output is 108 b.h.p (SAE), the compression ration 10:1 and the capacity
1.78 litres (108.6 cu.in)
Fuel system
The engine is fitted with twin 1 ¾” SU horizontal carburettors. The fuel is fed from the
tank to the carburettors by a fuel pump driven by a cam on the engine camshaft.
There is a fuel filter incorporated in the fuel pump and this filter traps any water and
other impurities in the fuel.
Lubricating system
Engine lubrication is taken care of by means of a gear pump, which sucks oil from
the oil pan on the lower part of the engine and forces it through the oil cleaner out to
all the lubricating points on the engine. The oil is cooled in an oil cooler, water from
the engine cooling system circulating through the mantle on the oil cooler,
Cooling system
The engine is water-cooled and has a pressure system. Cooling water circulation is
taken care of by a pump, which is fitted, on the fan shaft. A thermostat, which does
not open until the temperature reaches 76 oC (ca 170 oF) prevents the cooling water
from passing through the radiator before the engine has reached its normal operating
temperature.
Steering gear
The car is fitted with a cam and roller type steering gear. Movements of the steering
wheel are transmitted via the worm on the steering rod to the roller on the pitman arm
shaft, which, in its turn, influence the wheels through the medium of the steering
rods.