KTM 690 SMC 2008, Repair Manual

Page: 119 / 227

30/ENGINE - WORK ON INDIVIDUAL PARTS
117
18.19
Checking timing assembly
0 0 1 1
0 0 1 1
0 0
2 2
0 0
3 3
0 0
4 4
0 0 5 5
300113-01
–
Clean all parts well.
–
Check the timing chain gear / timing chain sprocket

for damage and wear.
» If there is damage or wear:
–
Replace the timing chain gear / timing chain sprocket.
–
Check timing chain tensioning rail

for damage and wear.
» If there is damage or wear:
–
Change the timing chain tensioning rail.
–
Check timing chain guide rail

for damage and wear.
» If there is damage or wear:
–
Change the timing chain guide rail.
–
Check timing chain securing guide

for damage and wear.
» If there is damage or wear:
–
Replace the timing chain securing guide.
–
Check timing chain

for damage and wear.
» If there is damage or wear:
–
Change the timing chain.
–
Check that the timing chain links move easily. Let the timing chain hang down
freely.
» If the chain links no longer straighten out:
–
Change the timing chain.
18.20
Removing rocker arm
300113-10
–
Remove screws

.
300114-10
–
Screw a suitable screw

into the rocker arm shafts

. Pull out the rocker arm
shafts.
–
Take off the rocker arm

.
18.21
Changing camshaft bearing
–
Remove the rocker arm. ( p. 117)
300226-10
–
Clamp the cylinder head.
Clamping plate (75029050000) ( p. 214)
–
Remove the large camshaft bearing using the special tool

.
Push-out drift (75029051000) ( p. 214)