Description Of The Circuit - Triumph TR6 Handbook

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R E G U L A R M A I N T E N A N C E
General
On the TR.6 the conventional carburation system is replaced
by a fuel injection system.
- This system delivers precisely metered and timed quantities
of fuel, in the form of a fine spray, to the air intakes via injectors.
The mixture is then compressed and spark ignited by conven-
tional means.
Th9 design of the equipment used is such that all adjustments,
with the exception of the slow running described on page 54,
should be undertaken only by the skilled engineers employed by
Triumph distributors or dealers.
Routine maintenance is restricted to changing the fuel filter
elcrnents (see page 51) and a unit overhaul at 36,000 miles
(60,000 km.) which must be carried out by the Triumph
distributors or dealers.
Description of the Circuit (Fig. 86)
A motor driven pump (2) draws fuel from the tank through
a paper element filter (l).
The pump pressurises the fuel,
line pressure is majntained by a relief valve (3) which permits
excess fuel to be returned to the tank.
A metering distributor
is sited adjacent to and driven in conjunction with the ignition
distributor.
The metering distributor delivers accurately metered and
timed fuel chargds to each injector in turn. The'fuel quantity is
determined bv an integrated mixture control unit actuated by
manifold depression.
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