Ford Lrg-425 Efi Engine Specifications - Genie Z-60/34 Service Manual

Section 2 • Specifications
SPECIFICATIONS
Ford LRG-425 EFI Engine
Displacement
Number of cylinders
Bore & stroke
Horsepower
Gross intermittent @ 3600 rpm
Continuous @ 3600 rpm
Horsepower @ 2500 rpm
Firing order
Low idle
High idle
Compression ratio
Compression pressure (approx.)
Pressure (psi) of lowest cylinder must be
at least 75% of highest cylinder
Valve clearances -
collapsed tappet
Lubrication system
Oil pressure
(operating temp. @ 2000 rpm)
Oil capacity
(including filter)
2 - 6
Oil viscosity requirements
Below 60°F / 15.5°C
153 cu in
2.5 liters
-10°F to 90°F / -23°C to 32°C
4
Above -10°F / -23°C
3.78 x 3.4 in
Above 20°F / -6.6°C
96.01 x 86.36 mm
Use oils meeting API classification SG (labeled SG/CC
or SG/CD) as they offer improved wear protection.
Units ship with 10W-40 SG/CC.
97
82
Oil pressure switch specifications
70
Torque
1 - 3 - 4 - 2
1600 rpm
Oil pressure switch point
2500 rpm
Starter motor
9.4:1
Normal engine cranking speed
Current draw, normal load
Current draw, maximum load
0.035 to 0.055 in
0.889 to 1.397 mm
Current draw, minimum
Maximum circuit voltage drop
while starting (normal temperature)
40 to 60 psi
2.75 to 4.1 bar
Brush length, new
5 quarts
4.7 liters
Brush length wear limit
Brush spring tension
Bolt torque
through brush
Brush mounting
bolt torque
Maximum commutator
run-out
Genie Z-60/34
November 2003
REV A
5W-30
10W-30
10W-40 to 10W-50
20W-40 or 20W-50
8-18 ft-lbs
11-24 Nm
3-5 psi
0.21-0.34 bar
200 to 250 rpm
140-200A
800A
60-80A
0.5V DC
0.66 in
16.8 mm
0.25 in
6.35 mm
64 ounces
18 Newtons
45 to 84 in-lbs
5.08 to 9.5 Nm
15 to 20 ft-lbs
20 to 27 Nm
0.005 in
0.127 mm
Part No. 75861