Withdrawal
1. Remove the valve cover.
Attention: the order of operation of the engine is 1-8-7-2-6-5-4-3, odd cylinders in the left half-block.
2. Turn out a candle of the first cylinder.
Attention: lay the removed parts in such a way that during installation you do not mix up the installation location.
3. Turn away bolts of fastening of yokes.
4. Remove rocker arms.
Note: on the L92 engine, rocker arms (1) intake valves have an eccentric design.
5. Remove the rocker support.
6. Remove push rods.
7. Wash and inspect the removed parts.
Installation
Attention: when installing working parts of the valve drive, always install the parts in their original position. Valve clearance adjustment is not required.
1. Lubricate rocker arms and push rods with engine oil.
2. Lubricate the head restraints (or washers) rocker arm bolts with engine oil.
3. Install rocker arm support.
4. Install the push rods. Check that the rods are installed correctly.
5. Install rocker arms and rocker arm bolts. Engage the rods and rocker arms. DO NOT TIGHTEN rocker bolts now.
6. Rotate the crankshaft until the piston of the first cylinder reaches the TDC of the compression stroke.
7. Tighten the exhaust valve rocker bolts for cylinders 1, 2, 7 and 8 and the intake valve rocker bolts for cylinders 1, 3, 4 and 5. Tightening torque 30 Nm.
8. Rotate the crankshaft one turn.
9. Tighten the bolts of the rocker arms of the exhaust valves of cylinders 3, 4, 5 and 6 and the bolts of the rocker arms of the inlet valves of cylinders 2, 6, 7 and 8. Tightening torque 30 Nm.
10. Install the spark plug of the first cylinder.
11. Install the valve cover.