Page 249 - REPOWER REFERENCE GUIDE (2020)
P. 249
8.1L/496/8.2L Triple Catalyst
Exhaust System—Design and Requirements
Section 7G - 8.1L/496/8.2L Triple Catalyst
Table of Contents
Triple Catalyst Models.......................................................7G-4 Exhaust Manifold Installation....................................7G-11
Exhaust Manifold and Elbow ‑ Inboard Models.......... 7G-4 Collector Installation.................................................7G-12
Exhaust Manifold and Elbow ‑ Sterndrive Models......7G-6 Riser Installation.......................................................7G-12
Additional Parts Required—Intermediate Exhaust Models with Water Lift or Through‑the‑Hull Exhaust
Elbow Kit.................................................................7G-8 Systems................................................................7G-14
Parts List.................................................................... 7G-8 Oxygen Sensor.........................................................7G-14
Riser Removal............................................................7G-8 Exhaust Manifold Coolant Temperature (EMCT)
Collector Removal......................................................7G-9 Sensor.................................................................. 7G-15
Exhaust Manifold Removal.......................................7G-10 Inboard and Service Exhaust Elbow........................ 7G-17
Cleaning and Inspection...........................................7G-11 Vent Valve................................................................7G-17
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90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 7G-1

