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O.S. - OSMG0800 OSM39400 39400 531028022584 4531028022584
Manufacturer Stock#
39400
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O.S. GF40 4-Stroke Gas w/Muffler
 
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O.S. GF40 4-Stroke Gas w/Muffler
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On-line Videos: Video 1 (YOUTUBE)
Instruction Manuals: Manual 1 (6.3 MB)
Tower Catalog Page: 168

Stock Number
LXCZLF
Retail Price
1299.99
Tower's Low Price
$799.99
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Stock Status
In Stock
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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the O.S. Engines GF40 4-Stroke Gasoline Engine.

FEATURES

Ideal for aerobatic or scale aircraft
Same firewall mounting system as the O.S. GT33
Walbro carburetor witn integrated choke rod guide that simplifies
installation, choke rod guide is integrated with backplate
Positive Crankcase Ventilation (PCV) helps keep model and environment
cleaner without blow-by gas and oil waste
Two year limited warranty through Hobby Services beginning at date of
purchase

INCLUDES

GF40 4-Stroke Gasoline Engine, CM6 Spark Plug, Muffler, Ignition
Module and Instructions

REQUIREMENTS

2-cycle oil, see SPECS
Ignition Battery: 4.8-6.0V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack
LiPo battery requires voltage regulator
Propeller: 18x8 for break-in, 18x8-12, 19x8-10 20x8-10
Mounting standoffs, length depends on aircraft
Gasoline safe fuel tubing and fuel filter

SPECIFICATIONS

Displacement: 2.438 cu in (39.96 cc)
Bore: 1.57" (40mm)
Stroke: 1.251" (31.8mm)
Practical RPM Range: 1,800-9,000
Weight: Engine, 42.3oz (1200g)
Muffler, 4.0oz (113g)
Ignition Module, 3.4oz (95g)
Gasoline/Oil Mixture: 30:1 - 50:1
25:1 fuel/oil mixture if brand of oil states 50:1 mix
Crankshaft Size: UNF5/16-24
Length from Backplate to Drive Hub: 4.7" (118.5mm)
Length from Center of Crankcase to Drive Hub: 3.1" (78.6mm)
Length from drive hub to end of Crankshaft: 1.6" (41mm)
Length from Carburetor to end of Crankshaft: 7.8" (197.6mm)
Height from Center of Crankshaft to Rocker Cover: 4.9" (126.7mm)
Height bottom of Crankcase/top of Rocker Cover: 6.2" (157.2mm)
Distance between Vertical Mounting Hole Centers: 2.1" (54mm)
Distance between Horizontal Mounting Hole Centers: 2.7" (70mm)
Width of Cover Plate: 3.3" (83.7mm)

jxs 05/01/13
ir/jxs

– If you need more information, use these O.S. resources –
Click Here: Manufacturer's Product Web Page
Email: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970
  Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822

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Accessories Needed
 
COMPLETION NOTES FROM THE TECH DEPARTMENT
This is the O.S. Engines GF40 4-Stroke Gasoline Engine. FEATURES: Ideal for aerobatic or scale aircraft, walbro carb w/integrated choke rod guide, ignition module, F-6040 muffler, CM6 spark plug REQUIRES: Gasoline, 2-stroke engine oil, standoffs, fuel tubing, propeller 4.8-8.4V battery for ignition module

Accessories for the O.S. GF40 4-Stroke Gas w/Muffler

Primary Accessories     Optional Accessories
 
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Low Price
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Status
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14.99   In Stock
Subtotal for this Group of Accessories: 27.67  
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