Triumph TR6 PI Operation Manual page 123

EVAPORATIVE LOSS CONTROL SYSTEM
- Leak testing
17.15.01
EMISSION CONTROL
Test apparatus: Water manometer, pressure regulating valve,
pressure sealing valve and pressurised air supply. An
alternative to the manometer is an accurate pressure gauge
reading 0 to 30 in of water with which a pressure relief
valve or weak rubber connection will be necessary to
protect against over-pressurising the system.
WARNING: During the test, pressure will be applied to the
fuel tank breather system. The pressure, albeit very
low, may displace pipe connections or cause an
emission of fuel vapour. It is, therefore, important to
avoid naked lights or actions likely to cause sparks
during this test. It is also dangerous to exceed the
pressure quoted.
Test Procedure
I. At the carbon canister detach the tube from the
seperator tank and insert the pressurising tube of the
test apparatus.
2. Apply 20 in of water pressure to the system and close
the sealing valve. DO NOT EXCEED 25 in OF
WATER PRESSURE.
3. After two minutes, check the pressure in the system.
If the pressure has fallen more than 2 in of water,
investigation and rectification is necessary.
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Triumph TR6 Manual. Part No. 545277 Issue I
17.15.01