Withdrawal
Attention: The description is only for a four-cylinder engine without a toothed belt.
Remove the cylinder head and place it on 2 wooden supports, see section «Removal and installation of a head of cylinders».
Unscrew the banjo bolt -E-, while paying attention to the O-rings so that they can be reinstalled in the same position later.
Remove oil pipe -F- from retaining springs.
Model 316: Unscrew fuel pump -G- and remove insulating flange -H- and gaskets. Pull out the pusher a little.
Adjust the maximum clearances on all valves.
Install the clamping frame on the cylinder head (BMW tool 111040). In this case, the clamp must be facing the short side of the exhaust manifold.
Screw in the pinch bolt, compressing the valve springs and at the same time unloading the camshaft.
Insert locking pins -1- and unscrew guide washer -3- from the front side of the cylinder head (arrows).
Carefully pull the camshaft forward.
Installation
Thoroughly wash all installed parts in clean gasoline. clean the contact surfaces.
Lightly coat the camshaft with engine oil and insert into the cylinder head.
Caution: Be careful not to damage the bearing surfaces.
The camshaft has an applied index 2 = 264°.
Screw on the guide washer. Replace loose plugs -2- by inserting new ones coated with locking paste, eg Loctite.
Attention: After installing the guide washer, the camshaft must rotate easily.
Rotate distributor so. so that the notch on the camshaft flange coincides with the protrusion on the cylinder head. In this case, the camshaft is in the position of the top dead center of the 1st cylinder.
Unload the rocker arms and remove the clamping frame.
Model 316: install fuel pump (see section «Removal and installation of the fuel pump»).
Insert the oil pipe, while installing the O-rings in their original position. Screw in the hollow bolt and tighten it to 12 Nm. Tightening torque on model 316i from September 1988: 10 Nm. on a six-cylinder engine: 8 nm.
Install cylinder head (see section «Removal and installation of a head of cylinders»).