All Valve Stem Seals, Replace
Spezialwerkzeugliste: |
- KM-194-E
- KM-6152
- KM-840
- MKM-6086
- MKM-6086-100-15
- MKM-6086-200
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Remove
Important: Observe correct
allocation and sequence
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3. |
Remove 8x roller cam follower, intake side
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Important: Observe correct
allocation and sequence
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4. |
Remove 8x roller cam follower, exhaust side
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5. |
Engage gear and put the handbrake on
Note: All the wheels
must be in contact with the ground
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6. |
Prepare automatic valve spring lever MKM-6086
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Adjust supports
Note: Fit support heads
(1) centrally on support feet (2).
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Complete lever arm
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With joint, disassembly head
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Complete MKM-6086-200 assembly
head
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Use MKM-6086-100-15 (3). Insert
pressure piece "6J".
Note: Note
manufacturer's provisions.
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7. |
Attach automatic valve spring lever
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Attach 2x supports (1)
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At position camshaft bearing cap 1 and 5
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Slide assembly shaft (2) with joint into supports
Note: Align assembly
shaft centrally via spark plug bore.
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• |
Attach lever arm
Note: Removal head (3)
must point towards the intake side.
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8. |
Install compressed air adapter (4)
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Screw into spark plug thread of cylinder 1
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Apply compressed air to cylinder 1
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9. |
Remove 2x intake valve spring, cylinder 1
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Carefully push valve springs downwards
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With lever arm
Note: Removal head (1)
must be positioned vertically over the valve stem.
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Important: Observe correct
assignment.
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• |
Take out valve cotters, valve discs, valve springs
Note: Do not use any
magnetic tools.
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Install
10. |
Renew 2x valve stem seals
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Place 2x new valve stem seal on to valve stem
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11. |
Install 2x intake valve spring, cylinder 1
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Insert valve springs, valve disks
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Insert valve cotters (1) into assembly head
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Slide plastic clamping sleeve (2) in direction of lever arm
mount
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Important: Insert valve cotters
with tapered end towards valve.
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Push plastic clamping sleeve towards valve
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Attach assembly head to lever arm
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Carefully push valve springs downwards
Important: Assembly head must
stand vertically above valve stem. Valve cotters must engage
audibly.
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with lever arm
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Important: Do not make a 2nd
attempt without checking that both valve cotters are seated in the
assembly head. Check seat of valve cotters. Ensure pressure is
being applied.
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12. |
Check installation position
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13. |
Transfer lever arm
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Insert lever arm
Note: Removal head must
point towards the exhaust side.
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14. |
Remove 2x exhaust valve spring, cylinder 1
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Carefully push valve springs downwards
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With lever arm
Note: Dismantling head
must be positioned vertically over the valve stem
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Important: Observe correct
assignment.
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• |
Take out valve cotters, valve discs, valve springs
Note: Do not use any
magnetic tools.
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15. |
Renew 2x valve stem seals
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Place 2x new valve stem seal on to valve stem
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16. |
Install 2x exhaust valve spring, cylinder 1
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Insert valve springs, valve disks
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Insert valve cotters into assembly head
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Push plastic clamping sleeve towards lever arm mounting
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Important: Insert valve cotters
with tapered end towards valve.
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Push plastic clamping sleeve towards valve
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Attach assembly head to lever arm
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Carefully push valve springs downwards
Important: Assembly head must
stand vertically above valve stem. Valve cotters must engage
audibly.
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with lever arm
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Important: Do not make a 2nd
attempt without checking that both valve cotters are seated in the
assembly head. Check seat of valve cotters. Ensure pressure is
being applied.
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17. |
Check installation position
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18. |
Transfer compressed air adapter
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Interrupt compressed air feed
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Unscrew from spark plug thread of cylinder 1
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Screw into spark plug thread, cylinder 4
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Apply compressed air to cylinder 4
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19. |
Transfer lever arm
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Attach removal head
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Insert pin
Note: Removal head must
point towards the exhaust side.
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20. |
Remove 2x exhaust valve spring, cylinder 4
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21. |
Renew 2x valve stem seals
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22. |
Install 2x exhaust valve spring, cylinder 4
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23. |
Check installation position
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24. |
Transfer lever arm
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Attach lever arm
Note: Removal head must
point towards the intake side.
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25. |
Remove 2x intake valve spring, cylinder 4
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26. |
Renew 2x valve stem seals
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27. |
Install 2x intake valve spring, cylinder 4
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28. |
Check installation position
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29. |
Interrupt compressed air feed
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31. |
Set cylinder 2 to TDC of combustion stroke
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Turn crankshaft evenly (180°)
Note: Torsional
vibration damper auxiliary marking must be flush with timing case
cover marking.
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32. |
Engage gear and put the handbrake on
Note: All the wheels
must be in contact with the ground
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33. |
Transfer lever arm
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Attach removal head
Note: Removal head must
point towards the intake side.
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34. |
Transfer compressed air adapter
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Unscrew from spark plug thread, cylinder 4
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Screw into spark plug thread of cylinder 2
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Apply compressed air to cylinder 2
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35. |
Remove 2x intake valve spring, cylinder 2
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36. |
Renew 2x valve stem seals
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37. |
Install 2x intake valve spring, cylinder 2
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38. |
Check installation position
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39. |
Transfer lever arm
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Attach lever arm
Note: Removal head must
point towards the exhaust side.
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40. |
Remove 2x exhaust valve spring, cylinder 2
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41. |
Renew 2x valve stem seals
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42. |
Install 2x exhaust valve spring, cylinder 2
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43. |
Check installation position
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44. |
Transfer lever arm
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Attach removal head
Note: Removal head must
point towards the exhaust side.
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45. |
Transfer compressed air adapter
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Unscrew from spark plug thread, cylinder 2
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Screw into spark plug thread, cylinder 3
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Apply compressed air to cylinder 3
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46. |
Remove 2x exhaust valve spring, cylinder 3
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47. |
Renew 2x valve stem seals
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48. |
Install 2x exhaust valve spring, cylinder 3
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49. |
Check installation position
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50. |
Transfer lever arm
• |
Attach lever arm
Note: Removal head must
point towards the intake side.
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51. |
Remove 2x intake valve spring, cylinder 3
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52. |
Renew 2x valve stem seals
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53. |
Install 2x intake valve spring, cylinder 3
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54. |
Check installation position
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55. |
Detach automatic valve spring lever
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56. |
Remove compressed air adapter
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Interrupt compressed air feed
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58. |
Adjust TDC of combustion stroke, cylinder 4
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Turn crankshaft evenly (180°)
Note: Torsional
vibration damper TDC notch must be flush with timing case cover
marking.
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59. |
Visually check components
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Camshafts, camshaft bearing cap, hydraulic valve lifter,
cylinder head, spark plugs
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60. |
Insert 8x roller cam follower, exhaust side
Important: Observe correct
assignment.
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Lightly coat sliding surfaces with engine oil
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61. |
Insert 8x roller cam follower, intake side
Important: Observe correct
assignment.
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Lightly coat sliding surfaces with engine oil
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62. |
Install 4x spark plug
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Tighten using KM-194-E 25 Nm
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