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Perkins New 1000 series engine - Essential Diesel Engine Bolt Tightening Torques

 

Perkins New 1000 Main Bearing Bolts

5/8 UNF = 265 Nm, 196 lb.ft

Perkins New 1000 Connecting Rod Nuts and Screws

Connecting Rod Nuts
1/2 UNF = 125 Nm, 92 lb.ft

Connecting Rod Screws
1/2 UNF = 152 Nm, 114 lb.ft

Perkins New 1000 Cylinder Head Bolts Engine types AR and AS

Step 1 = 45 Nm, 33 lb.ft
Step 2 = repeat Step 1
Step 3 = (1/2 inch bolts only) = 110 Nm, 80 lb.ft
Step 4 = repeat Step 3
Step 5 = Stick to tightening sequence but tighten the different bolts as follows:

The 1/2 set screws = + 180 degrees
Short set screws = + 120 degrees
Medium set screws = + 120 degrees
Long set screws = + 150 degrees

Perkins New 1000 Cylinder Head Bolts Engine types AJ to AQ and YG to YK

Step 1 = 45 Nm, 33 lb.ft
Step 2 = repeat Step 1
Step 3 (1/2 inch bolts only) = 110 Nm, 80 lb.ft
Step 4 = repeat Step 3
Step 5 = Stick to tightening sequence but tighten the different bolts as follows:

The 1/2 set screws = + 150 degrees
Short set screws = + 150 degrees
Medium set screws = + 180 degrees
Long set screws = + 210 degrees

Perkins New 1000 series engine, Diesel Engine Specs

 

Perkins New 1000 Displacement

AJ, AK, AM, AP, AQ engines
4.0 liter, 234 CID

AR, AS engines
4.23 liter, 258 CID

YG, YH, YK engines
6.0 liter, 365 CID

Perkins New 1000 Arrangement

Six Cylinder engines
AJ, AK, AM, AP, AQ, AR, AS

Four Cylinder engines
YG, YH, YK

Naturally aspirated engines
AJ, AP, AR, AS, YG

Turbocharged engines
AK, AQ, YH

Turbo intercooled engines
AM, YK

Perkins New 1000 Bore and stroke

Bore AJ, AK, AM, AP, AQ, YG, YH, YK engines
100 mm, 3.937 inches

Bore AR, AS engines
103 mm, 4.055 inches

Stroke
127 mm, 5.0 inches

Perkins New 1000 Power output and compression ratio

Power output
4 Cylinder Marine gen sets
75 kVA @ 1500 rpm
90 kVA @ 1800 rpm

6 Cylinder Marine gen sets
112 kVA @ 1500 rpm
135 kVA @ 1800 rpm

Compression ratio
Naturally aspirated and turbocharged
17.25:1

Turbo intercooled
18.5:1

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