Remove
- 1. Remove camshaft housing
Important. Pay attention to assignment
- 2. Remove 16x roller cam followers with hydraulic valve lifters
- 3. Insert MKM-6086 • Attach 2x support MKM-6086-6 (3) together with joint MKM-6086-8 (1) and assembly shaft MKM-6086-4 (2) as depicted in L0014269
- 4. Attach EN-46782 (3) together with EN-46783 (2) and MKM-6086-17 (1) to cylinder 1 • Screw in bolt M8x25 (5) • Insert EN-46782 with bracket (4) in injector bore • Fasten bracket – Tighten nut 20 Nm • Apply compressed air to cylinder no. 1
Note. Compare stud bolt lengths with suitable means
- 5. Attach lever arm • Attach lever arm MKM-6086-7 (2) together with adapter MKM-6086-12 and dismantling head MKM-6086-11 (1) to joint MKM-6086-8
Important. Ensure application of compressed air
- 6. Remove 2x intake valve springs, cylinder 1 • Carefully push valve spring down using lever arm MKM-6086-7 • Remove 2x valve cotter (arrow) • Remove valve head and valve springs
Important. Dismantling head must be positioned vertically over the valve stem
- 7. Renew 2x valve stem seals • Remove with KM-840 (1) • Place new valve stem seal (3) on to valve stem (2) • Drive in as far as stop with EN-46779 (4)
Note. Coat new valve stem seals with oil
- 8. Complete Assembly Head MKM-6086-100-1 • Put together assembly head consisting of mount (1), fixing sleeve (2), Thrust Piece MKM-6086-100-17 (3), spring (4), screw connection (5) and Lever Mount MKM-6086-12 (6)
Note. Note manufacturer's provisions!
- 9. Install 2x intake valve spring in cylinder 1 • Insert valve springs and valve heads • Insert valve cotters in Assembly Head MKM-6086-100-1 (1) – Push clamping sleeve (2) towards the lever arm holder – Insert valve cotters – Push clamping sleeve towards the valve • Attach assembly head to lever arm
Important. Insert valve cotters with tapered end towards valve.
Important. Ensure application of compressed air
- 10. Install valve cotters • Carefully push valve springs downwards (arrow) • Check seating of valve cotters
Important. Assembly head (1) must stand vertically above valve stem. Valve cotters (2) must engage audibly.
Important. Do not make 2nd attempt without checking that both valve cotters are seated in the assembly head.
- 11. Transfer MKM-6086 • Undo 2x bolts • Slide on MKM-6086-6 (2) together with MKM-6086-4 (1) in direction of arrow as depicted in L0014270 • Tighten 2x bolts
Important. Ensure application of compressed air
- 12. Remove 2 exhaust valve springs cylinder 1 • Carefully push valve spring down using lever arm MKM-6086-7 • Remove 2x valve cotter (arrow) • Remove valve head and valve springs
Important. Dismantling head must be positioned vertically over the valve stem
- 13. Renew 2x valve stem seals • Remove with KM-840 (1) • Place new valve stem seal (3) on to valve stem (2) • Drive in as far as stop with EN-46779 (4)
Note. Coat new valve stem seals with oil
- 14. Complete Assembly Head MKM-6086-100-1 • Put together assembly head consisting of mount (1), fixing sleeve (2), Thrust Piece MKM-6086-100-18 (3), spring (4), screw connection (5) and Lever Mount MKM-6086-12 (6)
Note. Note manufacturer's provisions!
- 15. Install 2x exhaust valve spring of cylinder 1 • Insert valve springs and valve heads • Insert valve cotters in Assembly Head MKM-6086-100-1 (1) – Push clamping sleeve (2) towards the lever arm holder – Insert valve cotters – Push clamping sleeve towards the valve • Attach assembly head to lever arm
Important. Insert valve cotters with tapered end towards valve.
Important. Ensure application of compressed air
- 16. Install valve cotters • Carefully push valve springs downwards (arrow) • Check seating of valve cotters
Important. Assembly head (1) must stand vertically above valve stem. Valve cotters (2) must engage audibly.
Important. Do not make 2nd attempt without checking that both valve cotters are seated in the assembly head.
- 17. Repeat the procedure for cylinders 2 to 4
Install
- 18. Insert 16 x roller cam follower with hydraulic valve lifter
Note. Pay attention to assignment
- 19. Install camshaft housing