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Mack MP7 Engine Repair and Service Manual
Mack MP7 Essential Bolt Tightening Torques
Mack MP7 Engine
Connecting Rod Nuts
Step 1 30 ±3 Nm (22 ±2 lb-ft)
Step 2 180 degrees ±6 degrees
Mack MP7 Engine
Main Bearing Bolts
Step 1 150 ±20 Nm (111 ±15 lb-ft)
Step 2 120 degrees ±5 degrees
Mack MP7 Engine
Cylinder Head Bolts
Step 1 (bolts 1-4 on figure A) 25 Nm 18 lb-ft
Step 2 (figure B Bolts 1-26) 65 N•m (48 lb-ft)
Step 3 (figure B Bolts 1-26) 65 N•m (48 lb-ft) (Repeat of Step 2)
Step 4 (figure B Bolts 1-26) 120 degrees ±5 degrees
Step 5 (figure B Bolts 1-26) 90 degrees ±5 degrees
Mack MP7 Engine Specifications
Mack MP7 Engine
Displacement, Bore, Stroke,
and Compression Ratio
Displacement
659 CID, 10.8 liter
Bore
4.84 inches 123 mm
Stroke
5.98 inches 152 mm
Compression Ratio
16.0:1
Mack MP7 Engine
Power and Torque
Power
MP7 Different Power Ratings
From 242 kW, 325 hp
to 302 kW, 405 hp
@2000 rpm
Torque
MP7 Different Torque Ratings
From 1200 lb.ft, 1700 Nm
To 1560 lb.ft, 2115 Nm
@1500 rpm
Mack MP7 Engine
Weight and Dimensions
Weight approx:
2280 lb, 1034 kg
Dimensions approx:
Length - 1364 mm, 53.7 in.
Width - 810 mm, 31.9 in.
Height - 1113 mm, 43.8 in.
Diesel Engine Specs