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Home >> BMW >> 1971 >> 2800CS Not Available Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> BMW Engines - 2500, 2800, 3.0 & BAVARIA 6 Cylinder >> Rocker Arm Assembly

Rocker Arm Assembly

  1. Remove camshaft. See CAMSHAFT REMOVAL . Push rocker arms and thrust rings against springs and remove circlips from front rocker arm shafts.
  2. Remove two countersunk rocker arm shaft locking bolts next to number one bearing bore of camshaft. Install a suitable removing tool (No. 7004) in shaft and pull out of cylinder head. Remove rocker arms, thrust rings, springs and discs.
    Fig 1: Rocker Arm Assembly Components
    G09325557Courtesy of BMW OF NORTH AMERICA, INC.
  3. Check rocker arm shaft for wear. If diameter is less than 0.6087", replace rocker arm shaft. Check cam follower on rocker arms. If loose, replace rocker arm.
  4. Install spring, disc, rocker arm and thrust ring. Install rocker arm shafts and adjust so that recesses in shafts are aligned with cylinder head bolt holes in cylinder head.
  5. To disassemble rear rocker arm assemblies, remove rear cover on cylinder head. Use same procedure for rear shafts as used for front. Install self sealing discs on bolts for rear cover plate and use Cabritol sealer on plate gasket.
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