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OM502 Essential Diesel Engine Bolt Tightening Torques

 

OM502 Mercedes Main Bearing Bolts
step 1 = 80 Nm
step 2 = 160 Nm
step 3 = 320 Nm
step 4 = + 90 degrees

OM502 Mercedes Connecting Rod Bolts
step 1 = 30 Nm
step 2 = 60 Nm
step 3 = 120 Nm
step 4 = + 90 degrees

OM502 Mercedes Cylinder Head Bolts
step 1 = 10 Nm
step 2 = 50 Nm
step 3 = 100 Nm
step 4 = 200 Nm
step 5 = + 90 degrees
step 6 = + 90 degrees



OM502 Diesel Engine Specs

 

OM502 Mercedes Arrangement and compression ratio

Arrangement OM502LA
8v engine
4-stroke cycle
turbocharged
intercooled

Compression Ratio
From
17.25:1

To
18.5:1

OM502 Mercedes Displacement, bore and stoke

Displacement
15.931 liter, 972 CID

Bore
130 mm, 5.12 in

Stroke
150 mm, 5.91 in

OM502 Mercedes Power and torque

Power
OM502LA

From
442 hp, 330 kW @ 1800 rpm

To
590 hp, 440 kW @ 1800 rpm

Torque
From
2100 Nm, 1550 lb.ft @ 1100 rpm

To
2800 Nm, 2065 lb.ft @ 1100 rpm

OM502 Mercedes Dimensions and weight

Dimensions approx
length
1530 mm, 60 in

width
1195 mm, 47 in

height
1080 mm, 46 in

Weight approx
1125 kg, 2475 lb

Mercedes Designations German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE

example:
OM366 = ADE366N
OM366A = ADE366T
OM366LA = ADE366TI
OM442LA = ADE442TI


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Page Revision #6.1RsCS 25-10-2021