Mazda 13B-MSP Technical Information PDF herunterladen (Seite 76)

Engines Powertrain

Camshaft

• The camshaft is equipped with a key for the installation of the camshaft pulley.

• The camshaft drives the vacuum pump directly, and the power steering oil pump via a

helical gear.

Valve Actuation

• The camshaft actuates the valves via roller rocker arms and rocker bridges.

• The valve clearance has to be measured between roller rocker arm and rocker bridge,

and is adjusted through the adjustment screws of roller rocker arm and rocker bridge

(refer to the workshop manual for details).

NOTE: In order to prevent damage to the rocker bridge an adjustment wrench set (SST) is

required to hold the rocker bridge while loosening or tightening the locknut.

• The valve clearance has to be checked (and adjusted if necessary) for the first time after

20,000 km or 12 months (whichever occurs first). After that it has to be checked (and if

necessary adjusted) every 120,000 km or 6 years (whichever occurs first).

• For checking and adjusting of the valve clearances refer to the workshop manual.

L1001.4_01065

1 SST (for loosening / tightening the

locknut)

7 Rocker bridge

2 SST (for adjusting) 8 Camshaft

3 SST (for holding the rocker bridge) 9 Rocker arm shaft

4 Adjusting screw (rocker bridge) 10 Roller rocker arm

5 Measuring point for valve clearance 11 Locknut (rocker arm)

6 Locknut (rocker bridge) 12 Adjusting screw (rocker arm)

01-66 Curriculum Training

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Mazda 13B-MSP Technical Information Seite 76