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Mercedes OM314 specs, bolt torques, spec sheets, manuals



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Basic specs are open to everyone and include images, displacement, dimensions and weight, essential bolt tightening torques, the characteristics of the engine like its power and torque. Essential bolt tightening torques are the main bearing cap bolt torque, the connecting rod cap bolt torque and the cylinder head bolt torques.


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OM314 bolt torques, specifications and manuals


Useful information for owners and repairers of OM314 engines

OM314 essential bolt tightening torques

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

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°

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

OM314 manuals and other literature

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

example:
OM366 = ADE366N
OM366A = ADE366T
OM366LA = ADE366TI


OM314 key specifications

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

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

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

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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email: steve@barringtondieselclub.co.za
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