Install exhaust camshaft
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- Coat all bearing positions (1)
with fresh
motor oil.
- Make sure that the roller cam follower (1) is fitted correctly before installing the exhaust camshaft.
- Coat exhaust camshaft and exhaust camshaft bearing cap with fresh
motor oil.
- Insert exhaust camshaft in the cylinder head, such that the mark (1)
points upwards
.
- Check the fitting sleeves (1)
for correct
seating and damage and replace if necessary.NOTE: TECHNICAL INFORMATION
The camshaft bearing caps must not be mixed up. The camshaft bearing caps must be installed in the installation position from which they were removed. - Position all exhaust camshaft bearing caps on the cylinder head.NOTE: The exhaust camshaft bearing caps are legibly labeled from the intake side and marked with A1, A2 and A.NOTE: Exhaust camshaft bearing cap A is a thrust bearing.
- Coat both bearing positions at the high-pressure pump bracket with fresh motor oil.
- Feed in and position high pressure pump bracket (2)
with the roller tappet (1)
.
- Check the tensile strength of the screws for the bearing caps.
The illustration shows the screw with a tensile strength of 8.8 .
- Check the tensile strength of the screws for the bearing caps.
The illustration shows the screw with a tensile strength of 10.9 .
NOTE: TECHNICAL INFORMATION
The camshaft is under tension due to the valve springs. Tighten or loosen each screw on the camshaft bearing caps in the prescribed sequence only by half a turn. Repeat procedure. - Press the exhaust camshaft bearing cap down and hand-tighten the bolts incrementally in sequence (1) to (10) .
- Join all the exhaust camshaft bearing caps in half turns in the sequence (1) to (10) .
- Observe the joining torque .
- Tighten all exhaust camshaft bearing cap bolts in the sequence (1) to (10) .
TIGHTENING TORQUE SPECIFICATIONS
| Exhaust camshaft to cylinder head | ||
| M6 | Tensile strength of screw 8.8 Joining torque |
9.6 Nm |
| tightening torque | 9.6 Nm | |
| M6 | Tensile strength of screw 10.9 Joining torque |
11.8 Nm |
| tightening torque | 11.8 Nm | |