Camshaft, Removing And Installing: Installing: Notes

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The sealing surfaces must be free of oil and grease.
Pay attention that all roller rocker levers rest on the valve stem ends.

-- Remove any sealant residue from the groove on the cylinder head cover as well as on sealing surfaces. They must be free of oil and grease.

In the case that the crankshaft has been turned in the meantime:

-- Turn the crankshaft on the hex fitting -2- to "TDC" point.

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In "TDC" point the flattened position -1- is in an imaginary vertical line between the camshaft sprockets.

-- Then turn the crankshaft 90° counter-clockwise out of "TDC".

-- Bring the pin of the cam adjustment actuator into the installation position. Refer to Installing .

-- Lubricate the running surfaces of both camshafts.

CAUTION:

- Wear protective eyewear.

-- Place the intake camshaft -A- in the cylinder head. Turn the cam lobes of cylinder 4 -arrows- upward.

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-- Place the exhaust camshaft in the cylinder head cover as shown. The cam pair -A and B- must be pushed together in direction of -arrows-.

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-- Turn the exhaust camshaft until the markings -A and B- align.

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NOTE:

The illustration shows the version with mark -B- applied at the factory.

On versions with a mark made earlier, the mark -A- and the mark applied earlier must align on the cylinder head.

-- Apply the sealant on the clean sealing surface of the cylinder head cover as shown -arrows-.

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CAUTION:

- Do not apply sealant bead thicker than indicated.

Sealant bead thickness: 1.5 to 2.5 mm (0.059 to 0.098 inches)

-- Secure the camshaft and place the cylinder head cover with the camshaft on the cylinder head.

-- Lightly push on the cylinder head cover by hand and while doing so turn the camshaft slightly in direction of -arrows- until the cylinder head cover lays >>free of tension<< on the cylinder head.

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-- Replace the cylinder head cover bolt after removing.

-- Tighten the bolts in several steps. Refer to appropriate service information for the tightening sequence.

Pay attention that the cylinder head cover is not tilted.