Mercury MerCruiser Horizon 8.2 ECT User Manual

Section 4 - Specifications
Page 46 90-8M0061999 eng MAY 2012
Horizon 8.2 ECT 8.2 H.O. ECT
Propshaft power
280 kW (375 hp) 317 kW (425 hp)
Displacement
8.2 L (502 cid)
Alternator amps
Hot 72 A
Cold 65 A
RPM
WOT 4200–4600 4400–4800
Rev limiter 4750 4950
Idle RPM
Mechanical
650
DTS
Minimum oil pressure
At 2000 RPM 431 kPa (60 psi)
At idle 207 kPa (30 psi)
Thermostat
MPI models with Closed Cooling 76° C (170° F)
Timing at idle
Not adjustable
Firing order
1‑8‑4‑3‑6‑5‑7‑2
Minimum battery rating
Non‑DTS models 750 CCA, 950 MCA, 180 Ah
DTS models 800 CCA, 1000 MCA, 190 Ah
Spark plug type
NGK BPR6ES
Spark plug gap
0.83 mm (0.033 in.)
Emission control system
Electronic control (EC), heated oxygen sensor
(HO2S), catalyst
Fluid Specifications
Engine
IMPORTANT: All capacities are approximate fluid measures.
All Models
Capacity Fluid Type
Engine oil (with filter) 6.5 L (7 US qt) Mercury Full‑Synthetic MerCruiser Engine Oil 20W‑40
Seawater cooling system
(winterization use only)
20 L (21 US qt) Propylene glycol and purified water
Closed cooling system 17.4 L (18.4 US qt)
Mercury Extended Life Antifreeze/Coolant or extended life
ethylene glycol 5/100 antifreeze mixed 50/50 with purified water
Transmission
Model
Capacity Fluid Type
63A 4.3 L (4.5 US qt)
Dexron III Automatic Transmission
Fluid
63V 4.3 L (4.5 US qt)
80A 5.7 L (6 US qt)

Mercury MerCruiser Horizon 8.2 ECT Specifications

General

Brand	Mercury
Model	MerCruiser Horizon 8.2 ECT
Category	Engine
Language	English