STANDARD EQUIPMENT
AIR CLEANER - Two, dry type with rain shield and service indicator.
BARRING DEVICE - Manual.
BEARINGS - Heavy duty, replaceable, precision type.
BREATHER - Closed system.
L7042G
CONNECTING RODS - Drop forged steel, rifle drilled.
CONTROL SYSTEM - Pneumatic. Includes pilot operated valves for air start and prelube. Engine mounted
control panel with two push button valves. Pilot operated air start valves omitted when starter is not
furnished by Waukesha. Includes engine On/Off push button. One mounted on either side of the engine.
CRANKCASE - Integral crankcase and cylinder frame. Main bearing caps drilled and tapped for temperature
sensors. Does not include sensors.
VHP™ Series Gas Engine
CRANKSHAFT - Counterweighted, forged steel, seven main bearings, and dynamically balanced. 732 - 1025 BHP
CYLINDERS - Removable wet type cylinder liners, chrome plated on outer diameter.
Induction hardened.
CYLINDER HEADS - Twelve interchangeable. Two hard faced intake and two hard
faced exhaust valves per cylinder. Hard faced intake and exhaust valve seat
inserts. Roller valve lifters and hydraulic push rods.
ENGINE ROTATION - Counterclockwise when facing flywheel.
ENGINE MONITOR DEVICES - Engine thermocouples, K-type, are wired to a
common junction box for jacket water temperature, lube oil temperature and
intake manifold temperature. Magnetic pickup wired for customer supplied
tachometer. Lube oil pressure and intake manifold pressure sensing lines are
terminated in a common bulk head.
EXHAUST OUTLET - Single vertical at rear. Flexible stainless steel connection with
8" (203 mm) pipe flange.
FLYWHEEL - Approx. WR2 = 155000 lb-in2; with ring gear (208 teeth),
machined to accept two drive adapters: 31.88" (810 mm) pilot bore, 30.25"
(768 mm) bolt circle, (12) 0.75"-10 tapped holes; or 28.88" (734 mm) pilot
bore, 27.25" (692 mm) bolt circle, (12) 0.625"-11 tapped holes and (12) 0.75"-
10 tapped holes.
FUEL SYSTEM - Dual, natural gas, 4" (102 mm) updraft. Two Fisher Model S-201, 2" (51 mm) gas regulators,
Engine shown with options.
13 psi (89 kPa) maximum inlet pressure.
FLYWHEEL HOUSING - No. 00 SAE. Model L7042G
GOVERNOR - Woodward UG-8 LD hydraulic lever type, with friction type speed control. Mounted on right Naturally Aspirated, Twelve Cylinder,
hand side. Four-Cycle Gas Engine
IGNITION - Waukesha Custom Engine Control Ignition Module. Electronic digital ignition system. 24V DC
power required.
LEVELING BOLTS
LIFTING EYES - Requires 9.5 ton Working Load Limit (W.L.L.) anchor shackles. SPECIFICATIONS
LUBRICATION - Full pressure. Gear type pump. Full flow filter, 36 gallon (136 litres) capacity, not mounted.
Includes lube oil strainer (mounted on engine) and flexible connections (shipped loose). Air/gas motor
Cylinders Lube Oil Capacity
driven prelube pump. Requires final piping.
V 12 90 gal.
MANIFOLDS - Exhaust, (2) water cooled.
Piston Displacement (340 L)
OIL COOLER - With thermostatic temperature controller and pressure regulating valve. Not mounted.
OIL PAN - Base type. 90 gallon (340 litres) capacity including filter and cooler. 7040 cu. in. Starting System
PAINT - Oilfield orange primer. (115 L) 125 - 150 psi air/gas
PISTONS - Aluminum with floating pin. Standard 10:1 compression ratio. Oil cooled. Bore & Stroke 24 V electric
SHIPPING SKID - Steel for domestic truck or rail. 9.375″ x 8.5″ Dry Weight
VIBRATION DAMPER - Viscous type. Guard included with remote mounted radiator or no radiator. (238 x 216 mm) 20,500 lb.
WATER CIRCULATING SYSTEM, AUXILIARY CIRCUIT - For oil cooler. Pump is belt driven from Compression Ratio (9300 kg)
crankshaft pulley.
10:1
WATER CIRCULATING SYSTEM, ENGINE JACKET - Belt driven water circulating pump, cluster type
thermostatic temperature regulating valve, full flow bypass type. Flange connections and mating flanges for Jacket Water
(2) 4" (102 mm) inlets and (1) 5" (127 mm) outlet. System Capacity
107 gal.
(405 L)
POWER RATINGS: L7042G VHP™ SERIES GAS ENGINES
Brake Horsepower (kWb Output)
I.C. Water Inlet Temp.
Model °F (°C) (Tcra) C.R. 800 rpm 900 rpm 1000 rpm 1200 rpm
L7042G — 10:1 732 (546) 818 (610) 896 (668) 1025 (764)
Rating Standard: All models: Ratings are based on ISO 3046/1-1995 with mechanical efficiency of 90% and auxiliary water temperature Tcra (clause 10.1) as specified
above limited to ± 10° F (± 5° C). Ratings are also valid for SAE J1349, BS5514, DIN6271 and AP17B-11C standard atmospheric conditions.
ISO Standard Power/Continuous Power Rating: The highest load and speed which can be applied 24 hours a day, seven days a week, 365 days per year except
for normal maintenance. It is permissible to operate the engine at up to 10% overload, or maximum load indicated by the intermittent rating, whichever is lower, for
two hours in each 24 hour period.
All natural gas engine ratings are based on a fuel of 900 Btu/ft3 (35.3 MJ/nm3) SLHV value, with a 91 Waukesha Knock Index®.
For conditions or fuels other than standard, contact the Waukesha Engine Sales Engineering Department.
PERFORMANCE: L7042G VHP™ SERIES GAS ENGINES
English 130° F I.C. Water Temperature Metric 54° C I.C. Water Temperature
RPM 1200 1000 RPM 1200 1000
Power (Bhp) 1025 896 Power (kWb) 764 668
BSFC (Btu/bhp-hr) 7225 7135 BSFC (kJ/kW-hr) 10225 10095
NOx (grams/bhp-hr) 16.0 16.0 NOx (g/nm3) 5.9 5.9
CO (grams/bhp-hr) 13.0 13.0 CO (g/nm ) 3
4.8 4.8
NMHC (grams/bhp--hr) 0.25 0.25 NMHC (g/nm3) 0.1 0.1
NOTES:
1) Fuel consumption and exhaust emissions are based on ISO 3046/1-1995 standard reference conditions and commercial quality natural gas of 900 Btu/ft3
(35.38 MJ/m3 [25, V(0; 101.325)]) saturated lower heat value, Waukesha Knock Index® of 91 and 93% methane content by volume.
ISO 3046/1-1995 standard reference conditions are 77°F (25°C) ambient temperature, 29.54 inches Hg (100 kPa) barometric pressure, 30% relative humidity
(1kPa/0.3 inches Hg water vapor pressure).
2) S.I. exhaust emissions are corrected to 5% O2 (0°C and 101.325 kPa).
3) Data will vary due to variations in site conditions. For conditions and/or fuels other than standard, consult the Waukesha Engine Sales Engineering Department.
4) Fuel consumption bassed on ISO 3046/1-1995 with a +5% tolerance for commercial quality natural gas having a 900 Btu/ft3 saturated low heat valve.
62.68″ 129.14″
(1597mm) (3280mm)
81.34″
(2066mm)
WAUKESHA ENGINE EUROPEAN REGIONAL OFFICE Consult your local Waukesha Distributor for system
DRESSER, INC. Nugat 7/13 application assistance. The manufacturer reserves the
1101 West St. Paul Avenue 02-776 Warsaw, Poland right to change or modify without notice, the design or
equipment specifications as herein set forth without
Waukesha, WI 53188-4999 Tomasz Staszek, Regional Manager
incurring any obligation either with respect to
Phone: (262) 547-3311 Fax: (262) 549-2795 Phone/Fax: +48 22 409 13 70 equipment previously sold or in the process of
waukeshaengine.dresser.com Mobile: +48 605 310 757 construction except where otherwise specifically
Bulletin 7011B 0905 Email: tomasz.staszek@waukeshaengine.dresser.com guaranteed by the manufacturer.
Waukesha, VHP, Series Four, Microspin, ESM, and Waukesha Knock Index are trademarks/registered trademarks of Waukesha Engine, Dresser, Inc. Copyright 2005 Dresser, Inc.
