Engine

Exhaust Camshafts

New exhaust camshafts are introduced to improve engine idle refinement. With the new camshafts, the exhaust valves close 100 earlier, eliminating valve overlap when the intake camshaft is in the retarded position. The exhaust valve lift is reduced to 8.4 mm (from 9 mm).

Spark Plug Gap

As part of the improvement to engine idle refinement, the spark plug gap setting is increased to 1.3 mm (0.051 in). This change applies retroactively to 1997 MY M-V8 should the spark plugs need to be replaced.

Throttle Body

Already introduced as a running change is a new throttle body with additional strengthening webs to reduce internal vibration levels. A further modification at this Model Year introduces an increased diameter securing pin for the throttle position sensor.

EGR SYSTEM

The EGR system was deleted from VIN 011462 during the 1997 MY.