Mazda MX-3 silhouetteMX-3

ON-VEHICLE MAINTENANCE — Camshaft

B2-30prose procedure

Thrust plate positions differ between LH and RH cylinder head camshafts (K8-ZE V6).

Continued from B2-29

Engine support / mount bracket

  1. 9
    Support the engine by using the SST.
    Engine bay view showing the engine supported by the SST engine support tool (labeled 49 G017 5A0) bridging across the engine. The intake manifold is visible.
  2. 10
    Disconnect the No.3 engine mount bracket.
    Close-up of the No.3 engine mount bracket area showing the mount with two bolts/nuts and a circular opening; illustrates disconnecting and removing the No.3 engine mount bracket.
  3. 11
    Remove the No.3 engine mount bracket from the engine.

Camshaft

Camshaft

  1. 1
    Apply a liberal amount of clean engine oil to the journals, cam lobes, and camshaft gears.
  2. 2
    Align the timing marks of intake camshaft and exhaust camshaft.
    View of the two camshaft gears meshed together with the instruction ALIGN THE MARKS pointing to the timing marks where the intake and exhaust camshaft gears mesh.
  3. 3
    Install the camshafts on the cylinder head.
    The thrust plate positions for the right and left cylinder head camshafts are different.

Camshaft cap and oil seal

  1. 1
    Remove the oil, dirt and other foreign material from the mating surfaces between the front camshaft cap and the cylinder head, and degrease.
  2. 2
    Apply silicone sealant to the shaded areas shown.
    Install the thrust caps first. Otherwise, camshaft can be broken or damaged.
    Two cylinder-head top views labeled LH and RH showing the front camshaft cap / mating surfaces with arrows indicating where to apply silicone sealant (SEALANT label at bottom-left).
  3. 3
    Install the thrust caps onto the cylinder heads. Hand tighten the bolts in five or six steps in the order shown, until the camshaft caps fully seated on the cylinder head.
    Two cylinder-head top views labeled LH and RH showing camshaft cap bolt tightening order with numbered callouts 1, 2, 3, 4 indicating the sequence to install the thrust caps.
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