Xray RX8 Instruction Manual - page 30

30

8. ENGINE & CLUTCH

Pull the clutchbell away from the clutch shoe and 

measure distance B as indicated.

These  shims  are  used  to 

adjust clutchbell endplay.

A

Measure endplay with this 

bearing installed

Pull

Install the clutchbell, outer ball-bearing (small), 

and  thrustbearing  assembly  on  the  engine 

crankshaft. DO NOT install the inner ball-bearing 

or internal shims.

Push  the  clutchbell  onto  the  clutch  shoe  and 

measure distance A as indicated.

Push

B

The clutch gap is A - B; 

the correct gap is 0.6-0.7mm

If  the  clutch  gap  is  greater  than  this,  you  can 

easily calculate the thickness of shims required 

to set correct gap:

Thickness of shims required (in mm) = A-B-0.7

Apply shims on crankshaft to set endplay to 

0.05-0.15mm

(1) ADJUSTING THE CLUTCH GAP

ENDPLAY SHIMS

CLUTCH GAP SHIMS

These shims are used to adjust 

clutch gap.

To  measure  the  clutch  gap 

(0.6~0.7mm)  you  can  also  use 

HUDY Flywheel Tool #182010

➊

➋

➌

➊

➋

DO NOT INSTALL 

this bearing when setting clutch gap.

INSTALL this bearing when setting endplay.

(2) ADJUSTING THE ENDPLAY 

ø10mm

ø5.2mm

ø9.8mm

ø5.0mm

Degrease this bearing with standard bearing 

cleaner, and then lubricate with light bearing oil.

IMPORTANT

NOTE ORIENTATION

Insert

CLUTCH GAP SHIMS 

here

For example, using the values A=5.5mm,   

  B=4.5mm 

Shim thickness = 5.5-4.5-0.7=0.3mm

Place shims on the small collar, outside the 

thrustbearing assembly.

Insert ENDPLAY SHIMS here

(approximately 0.7~1.0mm)

BEARING 

OIL

GRAPHITE 

GREASE

338584

S 5x7x0.2

338585

S 5x7x0.3

338586

S 5x7x0.5

930150

BA 5x10

930508

BB 5x10x4

359050

BB 5x10x4

908312

SCH M3x12

To  tighten  the  23T  pinion  gear  use  the  optional 

#339901 XRAY NT1 Pinion Tool (20~23T; 15~18T).

To  tighten  the  18T  pinion  gear  use  the  optional 

#339901 XRAY NT1 Pinion Tool (20~23T; 15~18T).

5x10x4

18

23

5x8x2.5