Acura NSX 1991 Manual page 167

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10. Fill the expansion tank with engine coolant. As
coolant starts to run out in a steady stream without
bubbles, tighten the bleeders in sequence: thermo
cover bleed bolt, radiator bleed plug, heater pipe
bleed and water pipe bleed bolt.
11. After tightening all the bleeding bolts and plug, fill
the expansion tank with coolant up to the MAX line.
12. Loosen the thermo cover bleed bolt to remove any
remaining air.
13. When bleeding is completed, retighten the thermo
cover bleed bolt and fill the expansion tank up to
0.5 (0.53 US qt, 0.44 Imp qt) or 30 mm (1.2 in)
over the MAX line.
HEATER PIPE
RADIATOR UPPER
TANK
Table of Contents
BLEED BOLT
10 N-m (1.0 kg-m,
7 Ib-ft)
BLEED PLUG
14. Install the expansion tank cap, and turn it 60 degrees
(where it engages the first lock tab of filler neck).
1 5. Start the engine, and let it run until warmed up (until
the thermostat opens and the radiator cooling fan
runs).
16. Turn off the engine. Check the expansion tank and,
if needed, add engine coolant to bring it up to the
MAX line.
17. Tighten the expansion tank cap securely.
18. Reinstall the cover on the car's underside.
BLEED BOLT
10 N-m (1.0 kg-m,
7 Ib-ft)
BLEED BOLT
10 N-m (1.0 kg-m,
7 Ib-ft)
THERMO COVER