Radio Controlled Models
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1/12 Scale Electric Rock Crawler:

Losi Night Crawler 2.0 - LOS03004 - Radio Controlled Model



History and Info:

   Released by Losi in 2015, the Night Crawler 2.0 Rock Crawler - LOS03004 - came factory assembled RTR, with a pre-painted Grappler Pro lexan polycarbonate Bodyshell, LED Light Bar and Rock Lights, Rock Claw Tires, Dynamite 540 High Torque 35T Motor, ESC, Spektrum High Torque Servo, SR310 Receiver and DX2E 2.4Ghz Radio Transmitter. Battery and Charger to be purchased separately.

   The 4WD model is based on a twin vertical alloy plate chassis, with molded 4-link suspension, front and rear 21T worm gear drive, coil spring over oil filled dampers, front CV universal joint drive-shafts and ball bearings.

Team Losi Night Crawler 2.0 - LOS03004

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Gas/Nitro Engines Body Shells Radio Transmitters etc Tires Wheels/Rims Electronic Speed Controllers Battery Packs / Chargers Electric Motors















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★ Team Losi Night Crawler 2.0 ★
Team Losi Night Crawler 2.0
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis
★ Team Losi Night Crawler 2.0 Chassis ★
Team Losi Night Crawler 2.0 Chassis

Buying a Used Losi Rock Crawler (and What to look for)


   There are essentially three reasons you might want to buy a used Losi Rock Crawler; you may be a collector, looking to restore and display it; restore and sell for a profit; or simply restore and race an iconic vintage model. Personally, I used to get a buzz out of restoring an old clapped-out model, installing modern day electrics and maybe a few hop-ups, then showing the gang at our local club, just how competitive those old models could still be.

   Cheap, pre-loved bargain models, parts and spares are always coming up for sale, but once you have made your purchase, the one thing you will always need, is an instruction manual. If not supplied with your purchase, they can often be downloaded from the Losi website, or purchased separately on eBay. With an instruction manual, any problems with your model Rock Crawler you may discover, can easily be fixed.

Make a General Visual Inspection

Dampers
   When you receive your used Losi model, make a general visual inspection of the chassis, front and rear wishbones, suspension shock towers etc, for any broken parts that may need to be replaced. Then, take a screwdriver and box spanner and check each self tapping screw and nut for security, taking care not to over tighten.

   Next, for those Losi models with oil filled shock absorbers, remove them from the chassis and dismantle the coil springs. The damper shafts should push in and pull out with a smooth action. If you feel a jolt as you change direction, this means the oil has leaked out and must be topped up. At the same time, change the O-Ring seals to prevent more leakage. Also check the damper shafts for damage. If they are scratched, change them as soon as possible.

Check the Body-Shell

   If the body shell of your Rock Crawler is broken, ripped or damaged in any way, this can be easily repaired with rubber solution glue. Also, for added protection and if available for your model, fit an under guard to stop dirt and gravel entering the chassis.

Drive Shafts and Turnbuckles

Titanium Turnbuckles
   Examine the drive shafts for wear and replace as required. If possible, change them for titanium. The steel shafts wear and bend too easily.

Examine the Drive System

   The gearbox of your used Rock Crawler should be opened up to check for damaged gears and wear. If there is excessive backlash in the gearing, these should be replaced. A thin coat of grease on the gears is enough to allow smooth operation and reduce further wear.

Pinions and Spur Gears

Spur Gears
   Gears are a weakness on all RC models. Head on collisions can easily damage the gear teeth on nylon and plastic spur gears. Heavy impacts can also loosen the nuts or self tapping screws that hold the motor in Position, allowing the pinion gear to pull out of mesh slightly and rip the tops off the teeth on your spur gear. To minimise this possibility, fit bolts with locking nuts to the motor mount and remember to check them for security after every two or three runs.

Steering Servo and Servo-Saver

Servo Gears
   The steering servo is also prone to damage, the fragile gear teeth of the servo can be broken off, rendering your expensive servo useless, so be sure to obtain a good quality "Servo Saver". Check out my Servo Information article.

Don't Forget those Bearings

Ball Bearings
   If your used Losi Rock Crawler comes with plastic and sintered brass bushings (ring type bearings), check the shafts that run in them for wear. Dust and grit can get into these bearings and abrade the shafts. Therefore, you should replace them all with shielded ball bearings. If the model has been run with ring type bearings, you may have to change all the axles and driveshafts. For more information, take a look at my article, How to get the best from your Bearings.



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Manufacturers and Brands Catalogued, Listed and Reviewed by RC-Scrapyard.

   At present, the RC Model Manufacturers, Brands and Distributors covered by us are: ABC Hobby, Academy, Acme Racing, Agama Racing, Amewi, Ansmann Racing, ARRMA, Team Associated, Atomic RC, Axial, AYK, Bolink, Losi, Capricorn, Carisma, Carson, Caster Racing, Cen, Corally, Custom Works, Durango, Duratrax, ECX - Electrix, Exceed RC, FG Modellsport, FS-Racing, FTX, Fujimi, Gmade, GS-Racing, Harm, HBX, Helion, Heng Long, Himoto Racing, Hirobo, Hitari, Hobao, Hong-Nor, Hot Bodies, HPI, HSP, Intech, Integy, Jamara, JQ Products, Kawada, Kyosho, Losi, LRP, Maisto, Mardave, Marui, Maverick, MCD Racing, Megatech, Mugen, New Bright, Nichimo, Nikko, Nkok, Ofna, Pro-Pulse, Protech, PTI, RC4WD, Redcat Racing, RJ-Speed, Robitronic, Schumacher, Seben, Serpent, Smartech, Sportwerks, Step-Up, Tamiya, Team-C Racing, Team Magic, Thunder Tiger, Tomy, Top Racing, Traxxas, Trinity, Tyco, Vaterra RC, Venom, VRX Racing, WLToys, X-Factory, Xmods, Xpress, Xray, XTM, Yankee RC, Yokomo, ZD Racing and Zipzaps.

   This is an ongoing project, with new and "lost in time" RC Models and Brands being added as they are found and although most of those listed above have been covered in relative detail, some are still being researched and will be completed in the near future.



















Hints, Tips and Information

Bearing Seals

   If you were to ask anyone with a modicum of experience in RC, they will tell you that the best modification you can make to a basic RC model, is to add a set of ball bearings.

   Quite a few of the entrance level models at the time this article was written, come with plastic and sintered brass ring type bearings. If these bearings are installed in the model and coated with grease as advised in the car manual, dust and grit can be caught in that grease and be dragged into the bearing where it can abrade the shaft that spins in it and it won't be long before it becomes a very sloppy fit, causing all kinds of problems.

   But what should you look for when buying bearings? There are a number of types of seal used on ball bearings, and there is much debate concerning which is the best for RC.

Read the Complete Article  ▶ ▶






Hints, Tips and Information

Keeping Notes

   If all you will ever do is go racing at your local track every week, then this article is not for you. However, if you ever look towards travelling around to different tracks around the country, or even the world, the value of keeping notes is all too obvious.

   Every time I raced in a regional or national competition meeting, I would make detailed notes, aided by a little local knowledge initially, and later fine tuned to suit my own driving style.

   My experience now means there are few, if any outdoor tarmac tracks within a 300 mile radius I haven't been to, and my notes on motor, gearing, camber angles, shock settings, tire choice and what inserts work best for that particular track, amongst others, allow me to save valuable time on the finer points of car setup, that can be done in the warmth of my own home on the kitchen table days before the meeting, instead of the often crippling heat, or the arduous conditions inside a wind blown tent.

Read the Complete Article  ▶ ▶







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