Left Cylinder Head, Installing, M62 Engine - BMW 5251 Service Manual

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Cylinder Head Removal and Installation
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Evaluate cylinder head as described in 116 Cylinder head
and valvetrain.
Left cylinder head, installing, M62 engine
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Clean cylinder head and block sealing surfaces of gasket
debris, making sure no debris drops into coolant or oil pas-
sages.
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Clean cylinder head bolt holes and check condition of
threads.
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Check cylinder head locator sleeves (arrows) for damage.
If the cylinder head has been machined, a special 0.3 mm
thicker gasket should be installed. The thicker gasket is avail-
able through an authorized BMW dealer and should be
marked accordingly.
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Place new cylinder head gasket over locating sleeve on
block.
The word "OBEN" or "TOP" (arrow) printed on the gasket,
must face up.
Set lefl side cylinder head in position on cylinder block while
pressing oil separator outward.
CAUJION-
Male sure the crankshaft, which had been rotated approxi-
mately 45" opposite the direction of engine rotation from
TDC, is still in thatposition before installing the cylinder head.
All pistons must be out of TDCposition to prevent valvelpis-
ton contact.
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Install new cylinder head bolts and washers finger tight. Be
sure not to remove coating from new cylinder head bolts.
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Tighten cylinder head bolts in correct sequence (1-10) to
stage 1 torque values.