Page 223 - REPOWER REFERENCE GUIDE (2020)

Single Catalyst V8 Engines
5.7 MPI (TowSport)

Torque
Ref. No. Qty. Description Nm lb‑in. lb‑ft
1 Starboard exhaust manifold assembly
1
1 Port exhaust manifold assembly
2 1 Manifold‑to‑cylinder‑head gasket
3 1 Brass pipe fitting
4 1 Catalyst
1 Starboard elbow assembly (without riser)
5
1 Port elbow assembly (without riser)
6 6 Screw 41 30
7 1 Elbow‑to‑manifold gasket
8 1 Plug
9 1 Brass pipe fitting
10 2 Oxygen sensor 50 37
11 4 Screw 49 36
12 2 Oxygen sensor cover bracket
13 2 Hex flange screw 3 28
14 1 Starboard straight fitting
15 1 Port fitting assembly
16 1 Exhaust manifold coolant temperature sensor 16 142
17 1 Manifold drain fitting assembly
18 1 Manifold fitting O‑ring
19 1 Manifold fitting check ball
20 1 Fitting on manifold
NOTE: The port exhaust assembly is shown, starboard is similar.

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 7E-7