Camshaft Bearing Cap Torque & Sequence

Note: This is an abbreviated procedure. For complete removal and installation instructions refer to Engine - Camshaft, Engine - Service and Repair - Procedures [1][2]Procedures

Screw bolts of camshaft caps in steps each of one turn alternately, tighten to 21 Nm.

Removal






Unbolt camshaft bearing caps (1), (4), (6) and (7) of exhaust camshaft (14) and bearing caps (8), (11), (13) and (14) of inlet camshaft (13).
Slacken bolts of remaining camshaft bearing caps in steps of one turn until counter-pressure is eliminated.

CAUTION: Camshafts (13) and (14) must not be twisted when slackening or bolting on the camshaft bearing caps.

Installation






Insert inlet camshaft (13) and exhaust camshaft (14) into bearing points at 30° BTDC of cylinder 1, align axially.

NOTE: The lobes of the cams must be facing down centered at cylinder 2 (arrows).

Install camshaft bearing caps (2), (3) and (5) of exhaust camshaft (14) and bearing caps (9), (10) and (12) of inlet camshaft (13).

NOTE: Since 01.93 the camshaft bearing caps are no longer fixed in position with dowel sleeves but bearing caps are centered automatically over the bearing points of the camshafts when the securing bolts are tightened as specified.

Screw bolts of camshaft caps in steps each of one turn alternately, tighten to 21 Nm.

CAUTION: Camshafts (13) and (14) must not he twisted when bolting on the camshaft bearing caps.