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O.S. - OSMG2042 OSM13875 13875 531028021518 4531028021518
Manufacturer Stock#
13875
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  Tech Notes

Accessories Needed

Replacement & Optional Parts

Easy RC: Engines

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O.S. 21XZ-R VII On-Road Engine
 
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O.S. 21XZ-R VII On-Road Engine
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Tower Catalog Page: 202

Stock Number
LXBCBL
Retail Price
699.99
Tower's Low Price
$399.99
Stock Status
(Estimated)
Late Apr

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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
      This is the O.S. 21XZ-R Version II ABC Engine with 21M Carburetor
                        for 1/8 scale On-Road Vehicles.

****** Because of the expressed racing nature of this engine, ****** ****** it is NOT covered by the O.S. 2 Year Warranty ****** ****** per page 8 of manual. ******

FEATURES: Tungsten-weighted silicone filled crankshaft creates optimum balance for consistent low and mid speed torque ABC piston and liner construction "A"luminum piston fitted to a "B"rass cylinder liner that is "C"hrome plated Liner has seven scavenger ports and three exhaust ports for more efficient combustion 21M slide valve carburetor with 9mm carb reducer that restricts the airflow helping to increase the amount of torque produced

INCLUDES: O.S. 21XZ-R Version II ABC On-Road Engine w/21M Carburetor, Exhaust Gasket RP7 Turbo Glow Plug, 9mm Carb Reducer, Flywheel Collet, Instruction Manual, 0.2mm Head Gasket and two Dust Caps

REQUIRES: Fuel: 10-30% nitro content, 20% recommended for break-in Exhaust System: Depending on vehicle Glow starter, fuel tubing and track equipment

SPECS: Displacement: 0.213 cu in (3.49 cc) Bore: 0.640" (16.27 mm) Stroke: 0.661" (16.8mm) Practical RPM: 4,000-45,000 Power Output: 2.75 PS, 2.71 HP @ 33,000 RPM Weight: 12.06oz (343g) Distance Between Mounting Holes Same Side: 0.83" (21mm) Distance Between Mounting Holes Opposite Side: 1.45" (37mm) Height Bottom of Mounting Tabs/Top of Cylinder Head: 3.45" (87.7mm) Width of Mounting Tabs: 1.8" (45mm) Distance from Backplate to Front Bearing: 2.6" (65.6mm) Distance from Center of Crankshaft to Front Bearing: 1.7" (44mm) Distance from Center of Crankshaft to Backplate: 0.85" (21.6mm) Carburetor Settings, Needle Valve: Approximately 3 turns open from fully closed Throttle: Approximately 0.5mm open from factory setting with reducer removed Metering Needle: Rotate until slotted head is 0.5mm away from ball link body Mixture Control Valve: Rotate until slotted head is flush with carb body

jxs 07/25/11 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. 21XZ-R ABC VII On-Road Engine with 21M Carburetor. FEATURES: Tungsten weighted silicone filled crankshaft, slide valve carb with 9mm reducer for higher torque, 7 intake, 3 port exhaust cylinder liner, RP7 turbo glow plug, head gasket & instruction manual REQUIRES: Fuel, air filter, exhaust system, track equipment

Accessories for the O.S. 21XZ-R VII On-Road Engine

Primary Accessories   Building & Field Equipment Optional Accessories
 
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXRXC9 Tower Hobbies TOWER Power 20% Car Fuel Quart
Qty Discount Available
7.69   In Stock
Subtotal for this Group of Accessories: 7.69  

Primary Accessories   Building & Field Equipment Optional Accessories

 
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