Generac Power Systems 66781, Owner'S Manual

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Specifications
6 Owner’s Manual for Stationary Diesel Generators
2.2 — Specifications
2.2.1— Engine
A complete specification sheet is included in the documentation provided with the unit at the time of purchase. For
additional copies, consult your local Authorized Service Dealer.
General 2.3L Engine 2.4L-49 Engine 3.4L Engine
Engine System
Type 4 cylinder, in-line, 4 cycle 4 cylinder, in-line, 4 cycle 4 cylinder, in-line, 4 cycle
Fuel Type Ultra Low Sulfur Diesel Ultra Low Sulfur Diesel Ultra Low Sulfur Diesel
Fuel Filtering 5 Microns 5 Microns 10 Microns
Bore and Stroke
3.46 in x 3.70 in
(88 mm x 94 mm) 3.54 in x 3.70 in
(90 mm x 94 mm) 3.86 in x 4.45 in
(98 mm x 113 mm)
Displacement 139.5 cubic inches (2.286 liter) 146 cubic inches (2.392 liter) 208.3 cubic inches (3.41 liter)
Firing Order 1-3-4-2 1-3-4-2 1-3-4-2
Direction or Rotation CCW - As Viewed From Flywheel CCW - As Viewed From Flywheel CCW - As Viewed From Flywheel
Dimensions L x W x H
685 x 491 x 636 mm
(26.97 in x 19.33 in x 25.04 in) 677.1 x 497.8 x 721.3 mm
(26.66 in x 19.60 in x 28.40 in) 742 x 587 x 721 mm
(29.21 in x 23.11 in x 28.39 in)
Dry Weight 441 lbs (200 kgs) 573 lbs (260 kgs) 551 lbs (250 kgs)
Compression Ratio 21.3 : 1 21.3 : 1 18.5 : 1
Cooling System
Water Pump Pre-Lubed, Self-Sealing Pre-Lubed, Self-Sealing Pre-Lubed, Self-Sealing
Drive Belt Belt Belt
Thermostat
Full Open Temperature:
185° F (85° C) Full Open Temperature:
185° F (85° C) Full Open Temperature:
185° F (85° C)
System Coolant Capacity 2.8 gal (10.6 liter) 2.8 gal (10.6 liter) 2.8 gal (10.6 liter)
Coolant Flow Rate 10 gal (38 liter)/min at 1800 RPM 10 gal (38 liter)/min at 1800 RPM 12.2 gal (46 liter)/min at 1800 RPM
Lubricating System
Oil Pump Type Gear Gear Gear
Oil Filter Type Full Flow Spin-On Canister Full Flow Spin-On Canister Full Flow Spin-On Canister
Oil Cooler Not Applicable Installed Installed
Crankcase Capacity 6.87 qt. (6.5 liter) 6.8 qt. (6.4 liter) 7.4 qt. (7.0 liter)
Lubricating Oil 15W-40 15W-40 15W-40
Oil Fill Location Filler Cap on Valve Cover and/or
Front Engine Cover Filler Cap on Valve Cover and/or
Front Engine Cover Filler Cap on Valve Cover and/or
Front Engine Cover
Oil Drain Location Oil Pan, Bottom Side Oil Pan, Bottom Side Oil Pan, Front
Intake and Exhaust System
Intake Air System Naturally Aspirated Turbocharged Turbocharged/Aftercooled
Maximum Allowable
Intake Restriction
25 in. of Water (6.23 kPa) 25 in. of Water (6.23 kPa) 25 in. of Water (6.23 kPa)
Maximum Allowable
Exhaust Back Pressure
23.6 in. of Water (5.88 kPa) 23.6 in. of Water (5.88 kPa) 24 in of Water (5.98 kPa)
Breather Closed Crankcase System Open Crankcase System Open Crankcase System
Other Specifications
Operating Temperature Range -20° F to 120° F (-29° C to 49° C) -20° F to 120° F (-29° C to 49° C) -20° F to 120° F (-29° C to 49° C)
POWER ADJUSTMENT FOR AMBIENT CONDITIONS
Temperature Deration........................................................................................3% for every 5 °C above 25 °C or 1.7% for every 5 °F above 77 °F
Altitude Deration (15, 30, 48 & 50 kW) ...................................................... 1% for every 100 m above 915 m or 3% for every 1000 ft above 3000 ft
Altitude Deration (20 kW) ......................................................................... 1% for every 100 m above 305 m or 3% for every 1000 ft above 1000 ft