11 11 150 Removing cylinder 11 34 020 Installing valves • Install valve with shrink-fit tube. L Note: Remove the shrink-fit tube. • Separate the cylinder base from the engine block. e Attention: When removing cylinder, make sure that the piston does not strike the engine block. • Remove cylinder. Checking cylinder • Install valve spring and valve spring plate. • Secure the cylinder head to support plate, BMW No. 11 0 523 . • Secure adapter plate, BMW No. 11 0 521 , support, BMW No. 11 5 691 , spindle, BMW No. 11 5 692 , nut, BMW No. 11 5 693 , and thrust plate, BMW No. 11 0 522 . • Press down the valves with the thrust plate.
• Check cylinder face and sealing faces for dam- age and blow out oil ducts for chain tensioner. • Measure cylinder bore at distance of 55...65 mm (2.17...2.56 in) from the upper edge with an internal micrometer at three points (1, 2, 3). Wear limits for cylinder bore: Cylinder A ...................max. 100.03 mm (3.9382 in) Cylinder B ...................max. 100.04 mm (3.9386 in) 11.33 11 5 691 11 1 1 3 5 692 11 0 52 11 0 52 1 0 522 11 0 52 5 692 11 5 692 E11 E11 0140 L Note: When installing the exhaust valves, slip suitable washers (approx. 5 mm (0.2 in) thick) between thrust spindle and thrust plate and dispense with the nut for securing the thrust plate to the thrust spindle.
1 • Insert the valve collets. L Note: Coat valve collets with a small amount of grease to facilitate assembly. 2 3 • Check bucket tappets for damage and fit to cor- rect valves. E110150 E110150