Volvo D 20 Operator's Manual download pdf (Page 31)

Maintenance: Engine, general

Idling. Adjustment

For engine idling speed: Please refer to the Technical

Data chapter. A lower engine speed can cause the

engine to stall and a higher engine speeds can cause

extra stresses to the drive/reverse when shifting.

Adjust with the engine at operating temperature as

follows:

1* Set the control lever in the neutral position. Check

that gap (A) is approx. 3 mm. Adjustment: Slacken

off the locknut (B) and adjust until the correct gap

is obtained with screw (C). Tighten the locknut.

*This point does not apply to boats with double control

positions.

2 Start engine and allow to idle with gear selector in

neutral.

WARNING! Approaching or working on a running

engine is dangerous. Watch out for rotating

components and hot surfaces.

3 Slacken off locknut (D). Adjust engine speed with

adjustment screw (E). Tighten the locknut. Repeat

step 1.

Air Cleaner (ACL). Changing

Loosen the hose clamp (1) and screw (2) to remove

the old filter.

Fit the new filter and tighten the hose clamp.

IMPORTANT! Take care that no contaminants

enter the engine.

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Volvo D 20 Operator's Manual Page 31