How to Replace the Rocker Arms / Shafts on a 1996 - 2000 Honda Civic LX / Del Sol 1.6L 4 Cyl D16Y7 Engine
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How to Replace the Rocker Arms / Shafts on a 1996 - 2000 Honda Civic LX / Del Sol 1.6L 4 Cyl D16Y7 Engine

How to Replace the Rocker Arms / Shafts on a 1996 - 2000 Honda Civic LX / del Sol 1.6L 4 Cyl D16Y7 Engine

To remove:

1.6L (D16Y7) Engine

  1. Disconnect the negative battery cable.
  2. Label and disconnect the ignition wires. Remove the spark plugs and note their cylinder assignments.
  3. Remove the valve cover and the upper timing belt cover.
  4. Set the No. 1 cylinder to Top Dead Center (TDC) for the compression stroke. Verify that the TDC marks are correctly aligned. Once the engine is set in this position, it must not be disturbed.
  5. Remove the distributor as an assembly.
  6. Loosen the valve adjusting screws.
  7. Cover the timing belt with a clean shop towel to protect it from engine oil. If the belt is contaminated with oil, it must be replaced.
  8. Remove the camshaft holder bolts. Unscrew the bolts two turns at a time in a crisscross pattern to prevent damaging the valves, camshaft, or rocker arm assembly. The rocker arms and shafts are an assembly; they must be removed from the engine as a unit. To prevent warpage, always follow the torque sequence carefully when removing or installing the rocker shaft assembly.
  9. Remove the rocker arm and shaft assemblies. Do not remove the camshaft holder bolts. The bolts keep the camshaft bearing caps, springs, and rocker arms in place on the shafts.
  10. If the rocker arms or shafts are to be replaced, identify the parts as they are removed from the shafts to ensure reinstallation in the original location.

To install:

  1. Verify that the engine is set to TDC/compression for the No. 1 cylinder. The camshaft key-way faces up when the engine is at TDC/compression.
  2. Lubricate the camshaft journals and lobes with clean engine oil. Install a new camshaft seal if necessary.
  3. Remove the oil control orifice. Thoroughly clean it and install it with a new O-ring.
  4. Assemble the rocker arms, shafts, and camshaft bearing caps.
  5. Apply sealant to the mating surfaces of the No. 1 and No. 5 camshaft bearing caps. Do not allow the sealant to cure before the rocker arm assembly is installed.
  6. Set the rocker arm assembly in place. Apply engine oil to the holder bolt threads, then loosely install the bolts. Tighten each bolt in a two step crisscross pattern to ensure that the rockers do not bind on the valves. Tighten the 8mm bolts to 14 ft. lbs. (20 Nm). Tighten the 6mm bolts to 8.7 ft. lbs. (12 Nm).
  7. Verify that the engine is at TDC/compression for the No. 1 piston and install the distributor.
  8. Adjust the valves and tighten the locknuts to 14 ft. lbs. (20 Nm).
  9. Install the valve cover and upper timing belt cover.
  10. Reconnect the negative battery cable.
  11. Check the ignition timing and adjust if necessary. Tighten the distributor mounting bolts to 17 ft. lbs. (24 Nm).

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