Triumph TR6 PI Operation Manual page 132

FUEL SYSTEM - PI
SYMPTOM
Erratic Idling
or lack of
response.
Engine Mis-
firing.
Excessive
fuel con-
sumption.
CAUSE
a.
Incorrect injection order.
b. Incorrect idling speed.
c. Excess fuel lever incorrectly
adjusted.
d. Incorrect line pressure.
e.
Metering Unit incorrectly timed to
the engine.
f
Continuous injection
g. Fuel leaks.
a.
Lack of fuel in tank or blockage.
b. Excess fuel lever incorrectly set.
c. Faulty injection.
d. Faulty non-return valve in one of
the metering unit unions.
e.
Incorrect line pressure.
f
Faulty pressure relief valve.
g.
Constantly fouled spark plugs on
Nos. 2 and 5 cylinders.
a.
Fuel leakage.
b. Excess fuel lever out of adjustment.
c. Loose Calibration Cover Securing
Screws letting in air.
d. Incorrect line pressure.
ACTION
Check that the injector pipes are fitted
to the injectors in correct order.
Check and adjust idling. 19.20.05
Check and if necessary adjust
clearance. 19.35.02
Check and if necessary adjust line
pressure at the pressure relief valve.
19.65.01
Check and if necessary adjust timing.
19.35.01
Check each injector in turn 19.35.14.
Check outlet union seals and renew if
necessary.
Check for leaks from metering unit.
Replenish with fuel of the correct
octane rating and check tank outlet to
line.
Check lever is returning to the off
position. Check clearance- 19.35.02
Remove each injector in turn and test
- 19.60.02
Renew the union concerned 19.35.14
Check line pressure and adjust pressure
relief valve. 19.65.01
Check by substitution.
Check banjo seals on Nos. 2 and 5
in j ector pipes at meter-ing unit
connection.
Check for fuel leakage from all
connections and pedestal seals.
Check excess fuel lever is returning to
the off position. Check clearance -
19.35.02
Check tightness and sealing of cover.
Check line pressure statically and
during road test. Adjust if necessary -
19.65.00
19.00.02 P.I.
Triumph TR6 Manual. .Pact No. 545277 Issue I
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