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O.S. - OSMG2083 OSM12240 12240 531028018334 4531028018334
Manufacturer Stock#
12240
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  Tech Notes

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Regularly Purchased Together

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O.S. 21TM ABC w/T-Maxx Manifold
 
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O.S. 21TM ABC w/T-Maxx Manifold
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On-line Videos: Video 1 (18.4 MB) Video 2 (YOUTUBE)
Instruction Manuals: Manual 1 (1.1 MB)
  
Tower Catalog Page: 174

Stock Number
LXRTM1
Tower's Low Price
$259.99
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Stock Status
In Stock
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 L5RTM102
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496.58  Buy Now 23.40  

Regularly Purchased Together
— Customers who purchased the above product also bought the following —
Although customers also purchased these, compatibility is not guaranteed. Click an item for product details.
1.  LXGPL6 O.S. LC3 T-Maxx/Revo Glow Plug Hot 5.99  Buy Now
2.  LXDDR3 Traxxas Flywheel Nut T-Maxx 2.5 3.69  Buy Now
3.  LXJJ88 Traxxas Fiber Washers 5x8mm (20) 1.79  Buy Now
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5.  LXJG52 Traxxas Ball Bearings 5x11x4mm (2) 4.99  Buy Now
6.  LXVSE6 Traxxas High Volume Air Filter Body T-Maxx 11.49  Buy Now
7.  LXJH92 Traxxas E-Clips/C-Clips/R Pins (40) 1.79  Buy Now
8.  LXFU76 Sullivan CT-1 Screen Fuel Filter 4.29  Buy Now
9.  LXSP08 Traxxas Clutch Shoes/Spring T-Maxx 6.39  Buy Now
10.  LXJG44 Traxxas Spur Gear 32P 70T Rustler 2.59  Buy Now
11.  LXJK92 Traxxas Slipper Friction Pegs (12) 3.89  Buy Now
12.  LXMJE7 Traxxas Aluminum Engine Mount T-Maxx 3.3 8.99  Buy Now
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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the O.S. Max 21TM Engine with T-Maxx Manifold.
Direct fit for the 2.5 and 3.3 Traxxas T-Maxx monster trucks.

*** TWO YEAR LIMITED WARRANTY ***

FEATURES

Adapts perfectly to the Traxxas E-Z Start or pull-start systems with
no modifications
Included manifold is specially designed to fit directly into the
T-Maxx
Traxxas' clutch assembly bolts right to the crankshaft with no
modifications
Oversized cooling fins on crankcase helps to keep engine cooler
Three needle slide valve carburetor with fins to help cool the fuel
as it enters the engine
High-performance long reach O.S. glow plug suitable for off-road
applications that require constantly varying speed
Two year limited warranty

INCLUDES

One O.S. Max 21TM Engine with T-Maxx Manifold, LC3 glow plug, 11K
slide valve carburetor, exhaust gasket, manifold spring and
instruction manual

REQUIREMENTS

Installing in vehicle
Air filter

SPECIFICATIONS

Displacement: 0.21 cu in (3.4cc)
Bore: 0.669" (17mm)
Stroke: 0.590" (15mm)
Practical RPM: 3,000 - 35,000 RPM
Output: 1.8 PS, 1.77 HP/29,000 RPM
Weight: 8.57oz (243g)

Distance between mounting hole centers same side: 0.43" (11mm)
Distance between mounting hole centers opposite side: 1.2" (31.4mm)
Distance from end of crankshaft to drive washer: 1.03" (26.3mm)
Distance from center of engine to front bearing: 1.4" (34.8mm)
Width of mounting flanges: 1.5" (39mm)
Length of exhaust flange: 0.24" (6mm)
Height/backplate mount to top of cylinder head: 3.3" (85.3mm)

COMMENTS

Needle Settings:
- High Speed Needle (Needle Valve) 2-1/2 turns out from close.
To break-in close approximately 30 after running one tank
of fuel through vehicle, repeat five times
- Mid Range Needle (Mixture Control Valve) Screw head is exactly
1/2 turn in from flush with the carb body
- Low Speed Needle (Metering Needle) Turn 30 clockwise to lean
mixture or counter-clockwise to richen mixture

jxs 8/31/07
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

Click here for Units of Measure Conversion Calculators

Parts Compatibility
 
Parts Compatibility for O.S. 21TM ABC w/T-Maxx Manifold
 
This item is an optional part for the following:
 LW9056** Traxxas 1/10 Nitro T-Maxx 2.5 TQ 4WD RTR  (Parts List)

Accessories Needed
 
COMPLETION NOTES FROM THE TECH DEPARTMENT
THIS IS THE O.S. MAX 21TM ENGINE WITH MANIFOLD FOR TRAXXAS T-MAXX. FEATURES: DROP-IN FIT FOR TRAXXAS STARTER & CLUTCH SYSTEMS, 11K SLIDE VALVE CARB W/COOLING FINS, LC3 GLOW PLUG FOR OFF-ROAD APPLICATIONS, T-MAXX STYLE MANIFOLD, ANODIZED BLUE CYLINDER HEAD REQUIRES: NITRO CAR FUEL W/10-30% NITRO CONTENT, GLOW WRENCH, TRACK EQUIPMENT

Accessories for the O.S. 21TM ABC w/T-Maxx Manifold

Primary Accessories     Optional Accessories
 
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXD711 Dubro 4-Way Socket Wrench XL
Qty Discount Available
8.99   In Stock
 LXFU76 Sullivan CT-1 Screen Fuel Filter
Qty Discount Available
4.29   In Stock
 LXRXC9 Tower Hobbies TOWER Power 20% Car Fuel Quart
Qty Discount Available
8.99   In Stock
Subtotal for this Group of Accessories: 22.27  
Click to Order all items listed in this Group of Accessories    Buy This group of Accessories

Primary Accessories     Optional Accessories

 
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