compression ratio FORD F650/750 2021 Owners Manual

ENGINE SPECIFICATIONS - 6.7L DIESEL
6.7L V8 Diesel Engine
Engine
406 in³ (6,651 cm³)
Displacement.
Low Sulfur Diesel up to B20
Required fuel.
1-3-7-2-6-5-4-8
Firing order.
15.8:1
Compression ratio.
Drivebelt Routing
Single Alternator Single Alternator With Air Brake
Compressor
Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B
281
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE224819 E224825

Dual Alternator Dual Alternator With Air Brake
Compressor
Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B
Note: The belt routings show vehicles with
air conditioning. When vehicles do not have
air conditioning, an idler pulley is in place of
the A/C compressor.
ENGINE SPECIFICATIONS - 7.3L 7.3L V8 Engine
Engine
445 in³ (7,293 cm³)
Displacement.
Minimum 87 octane
Required fuel.
1-5-4-8-6-3-7-2
Firing order.
Coil near spark plug with spark plug wire
Ignition system.
0.049 in (1.25 mm) - 0.053 in (1.35 mm)
Spark plug gap.
10.5:1
Compression ratio.
282
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE224820 E224826