Vehicles after change point in 1982 REMOVING AND INSTALLING CAMSHAFT Remove cylinder head cover - 11 12 000. Remove fan cowl and fan - 11 52 000. Remove distributor cap (1). Unscrew distributor rotor (2). Unscrew adapter (3). Remove cover (4). Installation: Check O-ring (5), replacing if necessary. Tightening torque*.  11 12 000 11 52 000 * See Specifications
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Take off distributor housing and cover. Installation: Check O-rings, replacing if necessary. |  |
Unscrew end cover. Installation: Replace gasket. |  |
Unscrew guide rails. |  |
Installation: Center guide rail with a feeler gage blade. |  |
Turn crankshaft with Special Tool 11 3 020 to set cylinder 1 to TDC - cyl. 6 overlaps. Caution! Never crank the engine after removing the timing chain. |  |
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Mount Special Tool 11 3 010 on timing case. Turn shaft (6) up to the stop - camshaft is held down for removal of bearing caps. Unscrew camshaft bearing caps. |  |
Release arrest and relax the camshaft. Remove Special Tool 11 3 010. Mark camshafts "E" / "A" and remove. Installation: Intake and exhaust camshafts are identical. Used camshafts must be installed in the same position. |  |
Installation: Turn crankshaft to TDC. Install camshaft that each groove faces up and in - TDC position: |  |
Mount Special Tool 11 3 010 on timing case. Hold camshaft in TDC position with Special Tool 11 3 020 and turn shaft (6) up to the stop - camshaft is held down for installation of bearing caps. |  |
Install camshaft bearing caps on timing case according to the lettering. Tightening torque*. * See Specifications
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Tighten the timing chain in opposite direction of engine rotation and place on the intake sprocket "E" first. Install lockplate and tighten sprocket. Tightening torque*. * See Specifications
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Installation: Install exhaust sprocket "A". Insert adapter (7). Install lockplate and tighten sprocket. Tightening torque*. * See Specifications
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Install chain tensioner - see 11 31 090. Crank engine monce in direction of rotation and recheck the timing. - Crankshaft in TDC - One each camshaft groove faces in - One each camshaft groove faces cast boss on bearing cap. Lock sprocket mounting bolts with the lockplates. Adjust valve clearance - see 11 34 004. 11 31 090 11 34 004
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Valve Timing: 1 Camshaft 248° - S 38 Z 2 Plug for camshaft oil bore 3 Circlip 4 Cylindrical pin - different for intake and exhaust sprockets. New standard pin for "E" and "A" can be installed retroactively. 5 Sprocket - intake "E" 6 Sprocket - exhaust "A" 8 Lockplate 9 Bolt M 6 x 16 10 Adapter for distributor rotor 11 Intake valve - 37 mm (1.457") diameter Oversize valves with larger stem diameter are available. 12 Exhaust valve - 32 mm (1.260") diameter Oversize valves with larger stem diameter are available 13 Spring retainer, lower 14 Valve stem seal 15 Valve spring - 42,5 mm (1.673") long Double spring set can be installed retroactively together with new spring retainers. 16 Spring retainer, upper 17 Valve collets 18 Tappet 19 Shims from 3.00 to 4.25 mm (0.118 to 0.167") |  |
