Mazda 13B-MSP Technical Information PDF herunterladen (Seite 93)

Powertrain Engines

Valve Actuation

• The camshafts actuate the valves via roller cam followers.

• The valve clearance has to be measured between the roller cam follower and the cam

lobe, and is adjusted through the adjusting screw of the roller cam follower (refer to the

workshop manual for details).

NOTE: In order to prevent damage to the claw of the roller cam follower when loosening the

locknut of the adjusting screw, the cam lobe must push down the roller cam follower

firmly (refer to the illustration below).

• The valve clearance has to be checked (and if necessary adjusted) 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).

L1001.4_01077

1 Cam lobe 4 Roller cam follower

2 Adjusting screw 5 Claw

3 Locknut 6 Roller

Curriculum Training 01-83

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Mazda 13B-MSP Technical Information Seite 93