Cylinder Head

Rocker Arms and Shafts Inspection (cont'd)


  1. Inspect the synchronising piston (s) (A) and timing piston (B). Push it manually. If it does not move smoothly, replace the rocker arm assembly.


  • When reassembling the primary rocker arm (C), carefully apply air pressure to its oil passage.
  • Apply oil to the pistons when reassembling.

D17A2, D17A5, D17A9 engines:

  1. Assemble each timing plate (A) and return spring (B) on its camshaft holder as shown (D16W8 engine).