 LPWG2, 3, & 4 Alpha Series Engines
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The LPWG2, LPWG3, and LPWG4 models are water-cooled gaseous fueled engines built with ribb ed thin-wall cast iron crankcase for quiet operation and have extra large bearing surfaces for low bearing loads and long life. The
crankcase includes a service door for easy access and also has a closed crankcase breather for reduced emissions. The engines are water cooled by means of a water circulation pump with thermostat that is
driven by a polyvee long-life belt. The engines include an integrated bypass system and they are designed for continuous operation in ambients up to 104 degrees. All of the engines have a lean burn
combustion system resulting in low emissions exceeding current legislative requirements and excellent fuel consumption.
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Specifications for LPWG2, LPWG3, & LPWG4 “Alpha” Series Engines |
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LPWG2 |
LPWG3 |
LPWG4 |
Power Output @ 1800 RPM:
(Continuous Power) |
9.1 hp (natural gas)
10.6 hp (propane) |
16.5 hp (natural gas)
18.7 hp (propane) |
22.0 hp (natural gas)
25.0 hp (propane) |
Power Output @ 1800 RPM:
(Intermittent Power) |
10.0 hp (natural gas)
11.7 hp (propane) |
18.2 hp (natural gas)
20.6 hp (propane) |
24.2 hp (natural gas)
27.5 hp (propane) |
Number of Cylinders: |
2 |
3 |
4 |
Bore: |
86 mm |
86 mm |
86 mm |
3.38 in. |
3.38 in. |
3.38 in. |
Stroke: |
80 mm |
80 mm |
80 mm |
3.15 in. |
3.15 in. |
3.15 in. |
Cylinder Capacity: |
0.93 litre |
1.39 litre |
1.86 litre |
56.7 in.3 |
85.1 in.3 |
113.5 in.3 |
Lubricating Oil Capacity: (including filter) |
3.2 litre |
4.0 litre |
5.8 litre |
5.6 pint |
7.0 pint |
10.2 pint |
Fuel Consumption @ 1800 RPM: (75% load) |
82 ft3/h (natural gas)
37 ft3/h (propane) |
120 ft3/h (natural gas)
58 ft3/h (propane) |
172 ft3/h (natural gas)
75 ft3/h (propane) |
Dry Weight: |
247 lbs |
330 lbs |
396 lbs |
Dimensions: |
23.84 in. (length) |
27.78 in. (length) |
31.71 in. (length) |
19.76 in. (width) |
19.76 in. (width) |
19.76 in. (width) |
26.97 in. (height) |
26.97 in. (height) |
26.97 in. (height) |
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Standard Features:
- Carburetor
- Flywheel drilled for automatic clutch
- Flywheel housing with SAE5 flange
- Electronic governor - constant speed
- Fuel gas solenoid valve
- Governor - fixed or variable speed
- High temperature switch (N/C)
- Low oil pressure switch (N/C, N/O)
- Exhaust manifold - top outlet
- Lubricating oil filter
- Radiator, extra-large, low mount radiator with 15” pusher type cooling fan
- Closed crankcase breather system
- Secondary gas pressure regulator
- Solid state inductive ignition
- Water pump & thermostat
- Hold-down feet for base mounting
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Accessories (partial list, call maesco.com for more info):
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- Air cleaner - medium or heavy duty
- Exhaust flanges or silencers
- Fan drive guards
- Flywheel end drives, shaft extensions, couplings, SAE industrial clutches
- Gauges - supplied loose
- Hydraulic pump drives - gear end and/or flywheel end
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