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Jconcepts BJ4, Manual

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Jconcepts BJ4 Manual Download Page 36

PAGE 37

How to Read the Tire Guide: 

Tire Grading:  A=Excellent  B=Good  C=Fair  ( - ) not recommended 

Looking at the chart for 4wd Blockhead, for 

dry

, from left to right; it is not recommended in Pink 

(P) compound, it is "good" in the Red (R) compound, and is considered "fair" in the Silver (S)

compound.

If a compound has a ( - ) for a recommendation, that means it is not recommended for that 

surface. 

Example:  A-7282 4wd Blockhead is not recommended for 

sand

 in the Pink (P) compound. 

If a tire pattern has three (---) under a surface, it is not recommended for that surface in any 

compound.  Example:  A-7285 4wd Taper-Pin is not recommended for any 

soft surface

.

 

Popular tire choices for dirt and clay tracks are listed below: 

SOFT SURFACE 

HARD SURFACE

 

Popular Tire Tread 

Designs

 

Sand 

Soil

 

Loamy

 

Ruts

 

Wet

 

Dry

 

Wet  Hard 

Slick Abras. 

Blue 

Groove 

Black 

Groove Broken 

Team Losi: P=Pink R=Red 

S=Silver Compounds 

- Denotes not recommended

PRS PRS PRS PRS PRS PRS PRS PRS

PRS

PRS

PRS

A-7282

4wd 

Blockhead

--- 

--- 

--- 

---  -BC AAB  -BB

-BB

-AA

-AA

-AA

A-7283

4wd Stud

-AA

-AA

-AA -AA -BB

--- 

--- 

--- 

--- 

--- 

--- 

A-7285 4wd Taper-

Pin

--- 

--- 

--- 

--- 

---  AAA  -CC

-AB

-AB

-AA

-AB

LOSI 

4WD 

FRONT

A-7364 IFMAR Stud

-AA

-AA

-AA -AA -BB

--- 

--- 

--- 

--- 

--- 

--- 

A-7367 IFMAR-Pin

--- 

-AA

-AA -AA -AB -AC -B-

-B-

--- 

--- 

-C- 

A-7368

Big Shot

--- 

-AA

-AA -AA -AB -AC -B-

-B-

--- 

--- 

-C- 

A-7369

X-2000

--- 

--- 

--- 

--- 

---  -B-

-B-

-B-

-B-

-B-

-B- 

A-7371

BK-Bar

--- 

--- 

--- 

--- 

--- 

--- 

--- 

--- 

-B-

-A-

-C- 

A-7372

Taper-Pin

--- 

--- 

--- 

--- 

---  AAA  --- 

-B-

-A-

-A-

-C- 

A-7378 2.0 Step-Pin

-AA

-AA

-AA -AA

--- 

--- 

--- 

--- 

--- 

--- 

--- 

LOSI 

BUGGY 

REARS

Pro-Line: M2, M3, R3 

Compounds 

- Denotes not recommended

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

M2 

M3 

R3 

8185

Holeshot 

- 

- 

- 

- 

- 

- 

- 

B 

- 

- 

A 

- 

- 

A 

- 

- 

A 

- 

- 

A 

- 

- 

A 

- 

- 

B 

- 

- 

B 

- 

- 

B 

- 

P.L.

4WD

FRONT

TIRES

8087 

Step-Pin 

- 

A 

- 

- 

A 

- 

- 

A 

- 

- 

A 

- 

- 

B 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

P.L.

BUGGY 

REARS

8089 

Square 

Fuzzie 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

- 

B 

- 

- 

B 

- 

- 

A 

B 

- 

A 

B 

- 

B 

- 

- 

B 

-

Summary of Contents for BJ4

Page 1: ......

Page 2: ...11 32 1 ALLEN WRENCHES A 050 B 1 16 C 5 64 D 3 32 E 2 5mm TOOLS NEEDED TO BUILD THIS KIT CHASSIS PREPARATION CHASSIS x 1 TOP DECK x 1 2 PIECES STEERING RACK x 1 BATTERY TRAY x 2 BATTERY STRAP x 2 BEA...

Page 3: ...THREAD LOCKING COMPOUND BEARING BLOCK 4 40 x 3 8 x 2 BEARING BLOCK AND CHASSIS FROM BAG A 4 40 MINI LOCKNUTS x 2 CENTER MOTOR MOUNT 4 40 x 5 16 x 3 CENTER BULKHEAD 4 40 x 5 16 x 2 REAR SUSPENSION MOU...

Page 4: ...PLACE SLIPPER ADJUSTMENT 1 HOLD THE DIFF BOLT WITH A 5 64 ALLEN WRENCH 2 SLIDE ONE THRUST WASHER ONTO THE DIFF BOLT 3 SLIDE THE DIFF BOLT WITH THRUST WASHER INTO THE FEMALE SLIPPER OUTDRIVE 4 WHILE AL...

Page 5: ...5 16 SOCKET HEAD x 4 1 THE SLIPPER IS ONE OF THE MOST CRITICAL ADJUSTMENTS ON THE BJ4 REMEMBER THE SLIPPER IS DESIGNED TO ABSORB IMPACTS FROM THE DRIVETRAIN SETTING THE SLIPPER TOO TIGHT WILL ONLY CAU...

Page 6: ...ST WASHER THE GREASE WILL HOLD THE BALLS IN PLACE DURING ASSEMBLY SANDWICHED BETWEEN THE WASHERS APPLY GENEROUS AMOUNT OF BLACK GREASE HOLD WITH 5 64 ALLEN WRENCH DIFF BOLT THRUST WASHERS 5 64 THRUST...

Page 7: ...G T NUT DIFF ASSEMBLY 1 INSERT THE LONG HUB ASSEMBLY INTO THE SHORT HUB ASSEMBLY MAKING SURE YOU LINE UP THE BOLT IN THE HUB AND THE BOLT THREADS INTO THE T NUT CHECK ALIGNMENT OF THE HUBS 2 TIGHTEN T...

Page 8: ...2 SPREAD A SMALL AMOUNT OF BLACK GREASE ON THE ROUND PORTION OF THE AXLE AND INSERT INTO THE CVD BONE ALIGNING THE CROSS HOLES 3 INSERT THE CROSS PIN MAKING SURE IT IS EVENLY SPACED ON BOTH SIDES OF T...

Page 9: ...L AND CENTER THE DOWEL PIN INTO THE INPUT SHAFT 4 TRIM BURRS FROM THE DRIVE PINION EDGE WHERE SHOWN SLIDE THE DRIVE PINION ON TO THE INPUT SHAFT MAKE SURE THE DOWEL PIN ALIGNS PERFECTLY WITH THE SLOT...

Page 10: ...x 3 8 FLAT HEAD SCREWS IN THE BACK 2 ATTACH THE REAR LOWER TRANSMISSION HOUSING TO THE REAR OF THE CHASSIS USING FOUR 4 40 x 3 8 FLAT HEAD SCREWS 3 TEMPORARILY SCREW A 4 40 x 1 8 SET SCREWS INTO EACH...

Page 11: ...FRONT SIDE OF THE RING GEAR AND PINON GEAR ON BOTH ASSEMBLIES 4 ATTACH EACH UPPER TRANSMISSION CASE WITH FOUR 4 40 x 3 8 SOCKET HEAD SCREWS AND TWO 4 40 x 3 8 BUTTON HEAD SCREWS 4 40 x 3 8 BUTTON HEAD...

Page 12: ...NTER OF THE ASSEMBLY APPLY A SMALL AMOUNT OF THREAD LOCKING COMPOUND 2 SLIDE ONE 030 NYLON WASHER ONTO THE TOP OF EACH STEERING POST 3 SLIDE ONE 030 ALUMINUM WASHER ON TO A SHORT BALL END AND FASTEN I...

Page 13: ...ATTACH THE ANTENNA MOUNT TO THE TOP DECK USING TWO 2 56 x 1 4 BUTTON HEAD SCREWS 7 ATTACH THE REAR TOWER MOUNT WITH TWO 4 40 x 1 4 BUTTON HEAD SCREWS FROM THE BOTTOM OF THE TOP DECK FINISH ATTACHING T...

Page 14: ...x 5 16 FLAT HEAD SCREWS REFER TO ILLUSTRATION BELOW FOR LOCATION OF SCREWS APPLY A SMALL AMOUNT OF THREAD LOCKING COMPOUND TO THE 4 40 x 5 16 FLAT HEAD SCREWS 7 POSITION THE REAR PORTION OF THE TOP D...

Page 15: ...TO THE SET SCREW ANGLE AND TURN THE CVD SO THE SET SCREW CAN BE SCREWED IN WITH AN ALLEN WRENCH 5 REPEAT THIS PROCEDURE FOR ALL OF THE CVD S SET THE COMPLETED CVD S AND ADDITIONAL HARDWARE ASIDE FOR L...

Page 16: ...ONTO THE CVD AXLE 3 PRESS THE BEARING INTO THE STEERING BLOCK AND INSERT A ROLL PIN THROUGH THE GROOVE IN THE CVD HEX AND INTO THE AXLE 5 PARTIALLY THREAD A FRONT WHEEL NUT ON THE AXLE 6 SLIDE THE CVD...

Page 17: ...8 BUTTON HEAD SCREWS AT THE BOTTOM AND TWO 4 40 x 1 4 BUTTON HEAD SCREWS AT THE TOP APPLY A SMALL AMOUNT OF THREAD LOCKING COMPOUND 5 CAPURE THE FRONT INNER HINGE PINS BY INSERTING TWO 2 56 x 1 8 BUTT...

Page 18: ...END INTO THE MIDDLE HOLE ON THE HUB CARRIER SECURE IT USING ONE 4 40 MINI LOCKNUT REFER TO ILLUSTRATION FOR LOCATION 6 REPEAT FOR THE OPPOSITE ASSEMBLY ATTENTION LONG BLACK BALL END THIN AXLE SHIMS x...

Page 19: ...L AMOUNT OF THREAD LOCKING COMPOUND 2 ALIGN THE REAR A ARMS BETWEEN THE REAR SUSPENSION MOUNTS SLIDE THE REAR INNER HINGE PINS INTO PLACE AND SECURE THEM WITH WITH THE 4 40 SET SCREWS APPLY A SMALL AM...

Page 20: ...CK SPACER x 8 TREE GOLD WASHER x 4 SHOCK CAP x 4 SHOCK PISTON 1 2 3 x 1 TREE LARGE SHOCK SPACER x 4 TREE E CLIP ROLL x 1 SHOCK O RING x 8 SHOCK SNAP RETAINER x 4 TREE 4 40 x 1 2 SOCKET HEAD x 4 4 40 P...

Page 21: ...THE SHOCK SEAL PARTS WHILE IT IS ON THE SHOCK TOOL 4 INSERT THE TOOL TIP INTO THE SHOCK BODY ALL THE WAY PUSH EASILY UNTIL THE PARTS SNAP INTO PLACE 5 CHECK THE TOOL HEIGHT IN FIGURE B BELOW AND COMP...

Page 22: ...AND DOWN A FEW TIMES MAKE SURE TO PUSH THE PISTON PAST THE HALF WAY POINT 4 FIGURE D SHOWS A SHOCK WITH THE SHAFT AT ITS HALF WAY POINT FIGURE E 5 FILL THE SHOCK BODY TO THE TOP OF THE THREADS WITH S...

Page 23: ...GOLD WASHER ON EACH 2 ATTACH THE BOTTOM OF THE REAR SHOCKS TO THE INSIDE HOLES ON THE REAR A ARMS USE THE 4 40 x 1 2 SOCKET HEAD SCREWS WITH A GOLD WASHER ON EACH 3 SLIDE THE 4 40 x 3 4 BUTTON HEAD SC...

Page 24: ...E SERVO HORN ON THE SPLINE ATTENTION FRONT BUMPER x 1 265 STEERING TURNBUCKLE 1 00 x 1 SCALE 1 1 1 TWIST THE BALL CUPS ONTO THE BLUE TITANIUM TURNBUCKLE UNTIL YOU GET THE DIMENSION SHOWN STEERING TURN...

Page 25: ...ACERS JR AND FUTABA SERVOS WILL USE THE THIN SERVO MOUNT SPACERS 2 SECURE THE SERVO MOUNTS TO THE CHASSIS WITH TWO 4 40 x 3 8 FLAT HEAD SCREWS 3 PUT THE BALL END DUST COVERS ON THE SERVO HORN AND THE...

Page 26: ...VER TAPE UNDER YOUR ELECTRONICS RUN YOUR RECEIVER ANTENNA WIRE UP THROUGH THE ANTENNA MOUNT AND TUBE PRESS THE ANTENNA TUBE DOWN INTO THE MOUNT INSTALL THE ANTENNA CAP TO HOLD THE ANTENNA WIRE IN PLAC...

Page 27: ...GOLD WASHERS x 2 NOTE IT IS HELPFUL TO HAVE A 2 5mm BALL END HEX DRIVER FOR MOTOR INSTALLATION BODY FINISHING AND COMPLETED ASSEMBLY 1 THE BODY COMES CLEAR MASK AND PAINT THE INSIDE OF YOUR BODY AS D...

Page 28: ...PAGE 29 CHASSIS TAPE INSTALLATION SHOWN WITHOUT FRONT BUMPER ELECTRICAL LAYOUT ELECTRICAL LAYOUT ELECTRICAL LAYOUT BATTERY PACK WITH JUMPER WIRE OVER TOP DECK...

Page 29: ...anufacturers have the motor connected during adjustment and some do not Now turn the power switch off 7 Connect the motor Place your car on a block or car stand so that all four wheels are elevated Tu...

Page 30: ...of 12 gauge wire for the jumper between each three cell pack Motor Gearing To get the most from your motor proper gearing is important You can calculate the final drive ratio by using the following fo...

Page 31: ...a small amount of lightweight oil to each bearing for lubrication Be careful not to apply too much oil for this will pick up dirt and contaminate the commutator and brushes Differential Adjust the dif...

Page 32: ...grip and acceleration Front Toe In Toe in describes the angle of the front tires when viewed from the top With toe in the front of the tires point inward Zero degrees toe in tires pointing straight fo...

Page 33: ...rotate as much in corners Anti Roll Bars The optional 1144 front anti roll bar kit and optional 1044 rear anti roll bar kit also called swaybars allow you to add roll resistance to the front or rear e...

Page 34: ...ct steering and handling characteristics In general lighter oil will increase steering response increase low speed steering and make the car handle small bumps better Heavier oil will increase high sp...

Page 35: ...Usually dry looking Abrasive Natural abrasion also accelerates wear Blue Groove Rubber has been laid down creating a dark groove Usually has some dust on it Black Groove Heavy amounts of rubber have b...

Page 36: ...FT SURFACE HARD SURFACE Popular Tire Tread Designs Sand Soil Loamy Ruts Wet Dry Wet Hard Slick Abras Blue Groove Black Groove Broken Team Losi P Pink R Red S Silver Compounds Denotes not recommended P...

Page 37: ...INK 2 30 BLUE 4 20 BLUE 2 55 BLUE 3 80 RED 2 50 GOLD 2 75 BLACK 4 50 ORANGE 2 90 RED 3 03 SILVER 3 40 GREEN 3 70 BLUE 4 10 JCONCEPTS ONLINE Get online help tips and new product information for your ca...

Page 38: ...3 AE 3911 3 16 x 3 8 AE 3914 AE 3911 AE 3919 JC 1135 complete center drive kit MIP CVD AE 6575 AE 6582 JC 1120 AE 3911 3 8 x 5 8 JC 1129 x 2 JC 1130 x 2 AE 6271 TL A 1216 3 16 x 3 8 TL A 6235 JC 1010...

Page 39: ...PRING_____ 2____ 1____ A____ WASHERS________ _________ STEERING RACK FORWARD _____ CHAMBER 2____ LONG______ ONE WAY____ B OUTSIDE ______ OIL_________ LIMITING____ C____ WHEELBASE SHAFT______ STEERING...

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