Renault Magnum engine. Manual - part 88

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Engine equipped with "Optibrake"

The marks

(B) 1 - 5 - 3 - 6 - 2 - 4 correspond to the recommended inlet valve clearances and to the recommended pump injector pre-travel distances for

each relative cylinder.

The marks

(B) or (C) must be positioned between the marks (A) to make the correct adjustment.

For values, see "Technical data" chapter.

See pages .

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Engine equipped with "Optibrake +"

The marks

(B) 1 - 5 - 3 - 6 - 2 - 4 correspond to the recommended inlet valve clearances and to the recommended pump injector pre-travel distances for

each relative cylinder.

The marks

(B) or (C) must be positioned between the marks (A) to make the correct adjustment.

For values, see "Technical data" chapter.

See pages .

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Adjustment of inlet valves

Measure the valve clearances using feeler gauges.

See pages .

Loosen the locknut and the adjuster.

Adjust the clearance between the rocker arm and the valve yoke by means of screw.

Tighten the locknut to torque while holding the adjuster.

See pages .

Make a mark on the rocker arm when adjustment is finished.

Perform the same operation on all the other cylinders.

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Adjustment of unit pump injectors pre-travel

Check the torque of the injector flange attachment bolts without removing the rocker arm assembly.

Use tool

A = 0162

Tighten to torque.

See pages .

This operation is to be performed at each valve adjustment maintenance.