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30/ENGINE - WORK ON INDIVIDUAL PARTS
Checking the timing assembly
19.17
Preparing the timing chain tensioner for installation
19.18
Changing the conrod bearing
19.19
–
Press the crank pin out of the crank web.
–
Take off the connecting rod and bearing.
–
Press the crank pin out of the second crank web.
–
Tension the valve springs with a special tool.
Valve spring mounter (59029019000) (
–
Mount the valve keys.
Info
When mounting the valve keys, check that they are seated correctly; prefer-
ably, fix the valve keys to the valve with a little grease.
600285-01
–
Clean all parts well.
–
Check timing chain crankshaft sprocket
for damage and wear.
»
If there is damage or wear:
–
Change the timing chain wheel/timing chain sprocket.
–
Check timing chain tensioning rail
»
If there is damage or wear:
–
Change the timing chain tensioning rail.
–
Check timing chain guide rail
»
If there is damage or wear:
–
Change the timing chain guide rail.
–
Check timing chain
»
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:
–
600269-10
Change the timing chain.
–
Check timing chain securing guide
»
If there is damage or wear:
–
Change the timing chain securing guide.
–
Check the timing chain tensioner for damage and wear.
»
If there is damage or wear:
–
Change the timing chain tensioner.
–
Press on the ratcheting pawl
»
If the pressure bolt is stiff:
–
Change the timing chain tensioner.
–
To mount the timing chain tensioner, press ratcheting pawl
bolt
all the way into the housing.
600270-10
P. 208)
and timing chain camshaft sprocket
for damage and wear.
for damage and wear.
for damage and wear.
for damage and wear.
and check that the pressure bolt
110
moves easily.
and push pressure
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