Triumph TR6 PI Operation Manual page 204

COOLANT
- Drain and reml 26.10.01
COOLING SYSTEM
Drain
1. Set heater controls to HOT.
2.
Remove the radiator cap. CAUTION If the engine is
hot exercise care. Turn the cap slowly and release any
pressure in the system before removing the cap.
3. Disconnect the radiator bottom hose at the radiator.
4. Remove the drain plug on the rear, right hand side of
the cylinder block.
5.
When system has drained, fit and tighten the drain
plug and reconnect the radiator bottom hose.
Reml
6. Fill the cooling system with clean soft water and, if
required, anti-freeze.
7.
Fit the radiator cap and run the engine at a fast idle
for approximately 1 to 2 minutes.
8. Remove the -radiator cap and top up as necessary.
9. ReplaCe the radiator cap and check the system for
leaks.
10.
Top up the overflow bottle to the half full level.
COOLING SYSTEM
l
~i
_
NT2686
- Pressure Test
26.10.07
Radiator cap
I. Rinse the radiator filler cap in clean water and while
it is still wet fit the cap to the pressure tester.
2. Pump up pressure until the gauge pointer ceases to
rise. Reject the filler cap if the gauge does not register
and maintain a pressure of I Ib/in
2
(0·06 kg/cm
2
)
below the fIgUre stamped on the filler cap for a
period of at least ten seconds without further
pumping.
Radiator
3. Warm the engine.
4. Remove the radiator filler cap and top up the system
if required.
s.
Fit the pressure tester to the radiator.
6. Pump up pressure to the figure stamped on the filler
cap, and check that this pressure can be maintained
for approximately ten seconds without further
pumping.
7. Check for leaks while system is pressurised. A
pressure drop within ten seconds and no external
leaks is indicative of internal leakage.
Triumph TR6 Manual. Part No. 545277 Issue I
26.10.01
26.10.07