Acura NSX 1991 Manual page 160

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Exhaust Manifold
Replacement
NOTE: Use new gaskets and self-locking nuts.
8 x 1.25 mm
22 N-m (2.2 kg-m,
16 Ib-ft)
EXHAUST
MANIFOLD
COVERS
Table of Contents
REAR PRIMARY
HO2S
45 N-m (4.5 kg-m,
33 Ib-ft)
• Be careful not to damage.
• Use the special tool when
removing and installing.
6 x 1.0 mm
12 N-m (1.2 kg-m,
9 Ib-ft)
REAR EXHAUST MANIFOLD
SELF-LOCKING NUTS
8 x 1.25 mm
34 N-m (3.4 kg-m,
25 Ib-ft)
8 x 1.25 mm
Apply oil to the
22 N-m (2.2 kg-m,
nut threads.
16 Ib-ft)
Replace.
FRONT PRIMARY
HEATED OXYGEN SENSOR
(HO2S)
45 N-m (4.5 kg-m, 33 Ib-ft)
• Be careful not to damage.
• Use the special tool when
GASKET
Replace.
SELF-LOCKING
NUT
8 x 1.25 mm
34 N-m (3.4 kg-m,
25 Ib-ft)
Apply oil to the
nut threads.
Replace.
GASKET
Replace.
removing and installing.
6 x 10 mm
12 N-m (1.2 kg-m,
9 Ib-ft)
FRONT EXHAUST MANIFOLD
8 x 1.25 mm
22 N-m (2.2 kg-m,
16 Ib-ft)
EXHAUST MANIFOLD
COVER