OFNA Racing 2-Speed, Shoe, OB4 Long 1/10th Scale -- 35017 - Manual (Page 5)

3 x 5mm
Screw
3 x 8
washer
34110
5 x 10
Ball bearing
35958
5 x 8mm
Ball Bearing
* Adjust the engine before adjusting the clutch shift timing.
Adjust the engine as per engine instruction manual.
1. Once the engine adjustments have been completed, proceed to the
adjustment of the clutch shoe shift timing.
(Using a 1.5mm allen wrench to adjust the clutch shoe.)
Note:
Clockwise--------------Shift timing will become slower.
Counter clockwise---Shift timing will become quicker.
2. Adjust the clutch shift timing for your track conditions.
As you tighten (Clockwise) the 2x10mm screw , the shift timing will become
slower.
As you loosen (Counter clockwise ) the 2x10mm screw, the shift timing will
become quicker.
3. Set the shift timing to the track conditions while the car is running.
1) Use a 1.5mm allen wrench to
set the clutch shoe.
1.5mm
Allen Wrench
Clockwise
(Tighten)
Counter-clockwise
(Loosen)
M2x10
Screw
3x3
Set Screw
2) Adjust the 3x3 set screw to set the air gap
distance between the clutch shoe and
2nd speed clutch bell.
3) Adjusting the M2x10mm screws, will
change the shift timing of the clutch
shoe. Adjust both screw the same
amount of turns
ASSEMBLY OF THE 2 SPEED CLUTCH GEAR CHECK THE GEAR BACKLASH OF THE CLUTCH GEAR
AND SPUR GEAR
35951
Clutch Bell
35950
18T 2nd
Clutch gear
35949
14T 1st
Clutch Gear
* Use note book paper to set gear backlash between spur and clutch bell gear.
If the space is not correct the spur gear will be damaged.
* Loosen or tighten your engine mount screw to adjust the mesh of the spur gear
and clutch bell.
Note Book
Paper
ADJUSTING THE SHIFT POINT
2 SPEED OPTION PARTS
35952 45T Spur Gear (olive)
35965 44T Spur Gear (white)
35934 43T Spur Gear (blue)
35942 42T Spur Gear (red)
35953 41T Spur Gear (pink)
SPUR GEAR(1st):
Description
35964 40T Spur Gear (gray)
35935 39T Spur Gear (yellow)
35963 38T Spur Gear (orange)
35943 37T Spur Gear (green)
39452 Ob4 Main Shaft, long
35321 2nd Gear Clutch Bell
35322 1st Gear
35323 Clutch Shoes
35329 Spring, Balance, Hex Screw
Carrier
N0.
SPUR GEAR(2nd):
Description
Description
35948 13T (1st)
35949 14T (1st)
35940 15T (1st)
35944 16T (1st)
35947 17T (2nd)
35950 18T (2nd)
35941 19T (2nd)
35945 20T (2nd)
CLUTCH GEAR:
Description
IMPORTANT:
The sum of the spur gear and clutch gear for1st gear must be equal
the sum of the spur gear and clutch gear for 2nd gear
. be equal
Example: 1st gear 45+13=58
2nd gear 41+17=58
Must be equal
2 SPEED GEAR RATIO COMBINATIONS
SPUR GEAR
CLUTCH GEAR
44T/40T
43T/39T
42T/38T
41T/37T
(4 tooth difference)
45T/41T 13T/17T 14T/18T 15T/19T
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( STANDARD)
16T/20T
SPUR GEAR
CLUTCH GEAR
44T/41T
43T/40T
42T/39T
41T/38T
(3 tooth difference)
45T/42T 13T/16T 14T/17T 15T/18T
( OPTION)
16T/19T
USA Parts No.
USA Parts No.
35324 Clutch Shoe Carrier
35325 M2x10mm Hex Screw
39453 Middle Shaft, Long
35326 One-Way Bearing
37550 10x15x4mm Bearing
N0. Description
USA Parts No.
2 SPEED PARTS
Slight
Air Gap
WHEN USING THE NEW CLUTCH TYPE 2-SPEED TRANSMISSION, YOU WILL NOTICE THE SECOND GEAR SHIFT ACTION IS LESS AGGRESSIVE, LEAVING YOU WITH BETTER
CONTROL. OFNA OFFERS A WIDE SELECTION OF GEAR RATIO CHOICES, USE THE BEST RATIO FOR YOUR TRACK LENGTH. REMEMBER DO NOT OVER REV YOUR ENGINE.