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Check and adjust valve play > < Camshaft Housing, Replace

Corsa D

Replace valve stem seals

  Remove

1.   Remove camshaft housing, see Seal camshaft housing to cylinder head
2.   Remove 16x roller cam followers with hydraulic valve lifters
Note:   Set aside in the order removed!
Object Number: 8063876 Size: DEFAULT


3.   Remove 2x camshaft housing centring pin (1)
Object Number: 8063858 Size: DEFAULT


4.   Attach MKM-6086
•   Adjust 2x supports MKM-6086-6 (1)
– Set the support heads at the outside of the support bases
– Tighten 2x bolts
•   Slide the joint MKM-6086-8 (2) onto the mounting shaft MKM-6086-4 (3)
– Slide 2x supports MKM-6086-6 onto the mounting shaft MKM-6086-4
•   Install both supports with the mounting shaft on the cylinder head
Important:   Attach the support MKM-6086-6 on the timing side as far as the stop in the timing case. Note bolt length - the holes are blind.
– Screw in 4x bolts
Object Number: 8063852 Size: DEFAULT


Important:   Note bolt length - the holes are blind.
5.   Attach tool EN-46782 together with tool EN-46783 (2) and tool MKM-6086-17 (1) to cylinder 1.
•   Screw in stud bolt (5)
•   Insert tool EN-46782 with seal and cylinder 2 injector (4)
– Tighten nut (6) 20 Nm
Object Number: 8063853 Size: DEFAULT


6.   Attach arm rocker
•   Attach arm rocker MKM-6086-7 (3) together with adapter MKM-6086-12 (2) and removal head MKM-6086-11 (4) to joint MKM-6086-8 (1)
Important:   Secure compressed air supply
7.   Remove 2x intake valve spring from cylinder 1
Important:   Removal head must be vertical above the valve stem.
•   Carefully press down on valve spring with rocker arm MKM-6086-7
•   Remove 2x split cotter (arrow)
•   Remove valve head and valve springs
Object Number: 8063854 Size: DEFAULT


8.   Replace 2x valve stem seals
•   Remove with KM-840 (1)
•   Fit new valve shank seal (3) onto valve shank (2)
Note:   Moisten new valve shank seals with oil
•   Drive in as far as the stop with EN-46779 (4)
Object Number: 8063855 Size: DEFAULT


9.   Complete the mounting head MKM-6086-100-1
Note:   Observe the manufacturer's instructions.
•   Assemble the mounting head, consisting of mounting (1), securing sleeve (2), thrust piece MKM-6086-13 (3), spring (4), screwed joint (5) and lever mount MKM-6086-12 (6)
Object Number: 2418511 Size: DEFAULT


10.   Install 2x intake valve spring on cylinder 1
•   Insert valve springs and valve heads
•   Insert split cotters in mounting head MKM-6086-100-1 (1)
Important:   Insert split cotters with the narrow part facing the valve.
– Slide the tensioning sleeve (2) toward the rocker mount
– Insert valve cotters
– Slide the tensioning sleeve toward the valve
•   Attach assembly head to lever arm
Object Number: 2410505 Size: DEFAULT


Important:   Secure compressed air supply
11.   Install valve cotters
Important:   The mounting head (1) must be vertical above the valve stem. The split cotters (2) must engage audibly.
•   Carefully press the valve spring downward (arrow)
Important:   Do not try this a second time without checking that both split cotters are seated in the mounting head.
•   Check the seating of the split cotters (2)
Object Number: 8063856 Size: DEFAULT


12.   Attach the removal head MKM-6086-11 to the adapter MKM-6086-12
13.   Attach the adapter (1) to the hole (2)
Object Number: 8063878 Size: DEFAULT


14.   Remove 2x exhaust valve spring from cylinder 1
15.   Fit new valve shank seal
16.   Attach the mounting head MKM-6086-100-1 to the adapter MKM-6086-12
17.   Install 2x exhaust valve spring on cylinder 1
•   Attach mounting head
18.   Attach EN-46783 to cylinder 2.
•   Interrupt compressed air feed
•   Remove EN-46782 with injector from cylinder 2
– Unscrew nut
•   Install EN-46782 in cylinder 2
– Insert cylinder 1 with injector
– Tighten nut 20 Nm
•   Supply compressed air to cylinder 2
19.   Remove 2x exhaust valve spring from cylinder 1
•   Attach removal head
20.   Fit new valve shank seal
21.   Install 2x exhaust valve spring on cylinder 1
•   Attach mounting head
22.   Transfer adapter
23.   Remove 2x intake valve spring from cylinder 2
•   Attach removal head
24.   Fit new valve shank seal
25.   Install 2x intake valve spring on cylinder 2
•   Attach mounting head
26.   Attach EN-46783 to cylinder 3.
•   Interrupt compressed air feed
Important:   Note bolt length - the holes are blind.
•   Remove EN-46782 with injector from cylinder 1
– Unscrew nut
– Unscrew stud bolt
•   Screw in stud bolt
•   Install EN-46782 with seal in cylinder 3
– Insert together with cylinder 4 injector
– Tighten nut 20 Nm
•   Supply compressed air to cylinder 3
27.   Remove 2x intake valve spring from cylinder 3
•   Attach removal head
28.   Fit new valve shank seal
29.   Install 2x intake valve spring on cylinder 3
•   Attach mounting head
30.   Transfer adapter
31.   Remove 2x exhaust valve spring from cylinder 3
•   Attach removal head
32.   Fit new valve shank seal
33.   Install 2x exhaust valve spring on cylinder 3
•   Attach mounting head
34.   Attach EN-46783 to cylinder 4
•   Interrupt compressed air feed
•   Remove EN-46782 with injector from cylinder 4
– Unscrew nut
•   Install EN-46782 in cylinder 4
– Insert cylinder 3 with injector
– Tighten nut 20 Nm
•   Supply compressed air to cylinder 4
35.   Remove 2x exhaust valve spring from cylinder 4
•   Attach removal head
36.   Fit new valve shank seal
37.   Install 2x exhaust valve spring on cylinder 4
•   Attach mounting head
38.   Transfer adapter
39.   Remove 2x intake valve spring from cylinder 4
•   Attach removal head
40.   Fit new valve shank seal
41.   Install 2x intake valve spring on cylinder 4
•   Attach mounting head
42.   Remove EN-46783 from cylinder 4
•   Interrupt compressed air feed
•   Remove EN-46782 with injector from cylinder 3
– Unscrew nut
•   Unscrew stud bolt
43.   Remove MKM-6086
•   Unscrew 4x bolts

  Install

44.   Insert 2x camshaft housing centring pin
45.   Insert 16x roller cam follower
Note:   Note removal sequence!
46.   Attach camshaft housing, refer to Seal camshaft housing to cylinder head

Check and adjust valve play > < Camshaft Housing, Replace