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Popular Diesel Engine Specs

OM314 Essential Diesel Engine Bolt Tightening Torques

 
OM314 Mercedes
Main Bearing Bolts 
M14 bolts:
 from engine No 000283 140 Nm
M15 bolts:
 Step 1 = 50 Nm 
 Step 2 + 90-110°

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OM314 Mercedes
Connecting Rod Bolts
M12 Serrated con rod bolts:
 Step 1 = 50 Nm
 Step 2 + 90-100°
M14 and M15 bolts:
 Step 1 = 100 Nm 
 Step 2 + 90-110°

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OM314 Mercedes
Cylinder head Bolts
Step1 = 50 Nm
Step2 = 80 Nm
Step3 = 120 Nm

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OM314 Diesel Engine Specs

 
OM314 Mercedes
Arrangement
OM314
in line 4 engine, 
4-stroke cycle
naturally aspirated

OM352
in line 6 engine, 
4-stroke cycle
naturally aspirated

OM352T
in line 6 engine, 
4-stroke cycle
Turbocharged

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OM314 Mercedes
Displacement

OM314
3.78 liter, 231 CID

OM352
5.675 liter, 346 CID

Bore
97.0 mm,  3.819 in

Stroke
128.0 mm, 5.04 in

Compression ratio:
17.0:1 Nturally Aspirated
16.0:1 Turbocharged

Weight approx:
approx:
OM314 - 738 lb, 335 kg
OM352 - 980 lb, 445 kg
OM352T - 1013 lb, 460 kg

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OM314 Mercedes
Power

OM314
62 kW, 83 hp @ 2800 rpm

OM352
94 kW, 126 hp @ 2800 rpm

OM352T
124 kW, 166 hp @ 2800 rpm

Torque
OM314N
250 Nm, 184 lb.ft @ 1500 rpm

OM352
375 Nm, 277 lb.ft @1500 rpm

OM352T
520 Nm, 384 lb.ft @1600 rpm

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OM314 Mercedes
Dimensions approx:
OM314N
length 820 mm, 32 in
width 580 mm, 23 in
height 840 mm, 33 in

OM352
length = 1075 mm, 42 in
width = 630 mm, 25 in
height = 875 mm, 34 in

OM352T
length = 1075 mm, 42 in
width = 680 mm, 27 in
height = 875 mm, 34 in

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OM314 Diesel Engine workshop repair Manuals

 
OM314 Mercedes
Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE

example:
OM366 = ADE366N
OM366A = ADE366T
OM366LA = ADE366TI

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