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Perkins 900 engine, Bolt Tightening Torques


Perkins 900 Cylinder Head Bolt
(If you have studs and nuts refer to the manual, otherwise:)

Caution: bolts are stretch bolts and cannot be reused!

bolts 1-8
Step 1 = 52 lb.ft, 72 Nm
Step 2 = 52 lb.ft, 72 Nm
(i.e. a repeat of step 1)
Step 3 = + 60 degrees

Final step = + 60 degrees

bolts 9-12
Step 1 = 37 lb.ft, 50 Nm
Step 2 = 37 lb.ft, 50 Nm
(i.e. a repeat of step 1)
Final step = + 60 degrees

Perkins 900 Engine Specifications


Perkins 903-27CP, 903-27CR Displacement, Bore, Stroke, Compression Ratio

165 CID, 2.7 liter

3.74 inches 95.0 mm

5.0 inches 127 mm

Compression Ratio
CR models - turbocharged

CP models - Natural aspiration

Perkins 903-27CP, 903-27CR Power, Weight

Power 903-27CP
48 hp, 36 kW @2600 rpm

Power 903-27CR
64 hp, 48 kW @2600 rpm

Weight dry - approx
675 lb, 306 kg

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