30/ENGINE - WORK ON INDIVIDUAL PARTS
110
600285-01
–
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.
19.17
Checking the timing assembly
600269-10
–
Clean all parts well.
–
Check timing chain crankshaft sprocket
and timing chain camshaft sprocket
for damage and wear.
» If there is damage or wear:
–
Change the timing chain wheel/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
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.
–
Check timing chain securing guide
for damage and wear.
» If there is damage or wear:
–
Change the timing chain securing guide.
19.18
Preparing the timing chain tensioner for installation
600270-10
–
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
and check that the pressure bolt
moves easily.
» If the pressure bolt is stiff:
–
Change the timing chain tensioner.
–
To mount the timing chain tensioner, press ratcheting pawl
and push pressure
bolt
all the way into the housing.
19.19
Changing the conrod bearing
–
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.
