Checking Engine Rpm - Vetus DIESEL VH4.65 Operation Manual

Checking engine speed
W
arNiNg
The maximum engine speed adjust-
ment screw has been correctly set
at the factory and sealed. DO NOT
attempt to remove this seal.
At full load (with the boat cruising) the
maximum engine speed should be about
3000 resp. 4000 RPM (see technical data
page 64). If the engine does not reach this
speed, it is being overloaded!
If this is the case, check the ship's pro-
peller for defects or irregularities, and
also to see that it is the correct pitch and
diameter.
VD00134
Checking engine speed
The engine idling speed should be
850 rpm.
Allow the engine to warm up normally
(until the coolant temperature reaches at
least 60°C (140°F).) before checking and/
or adjusting the idling speed.
Check the engine RPM using a rev. coun-
ter, or use the rev. counter fitted to the
control panel.
Maintenance
Increasing
RPM
Maximum rpm
adjustment screw
VD00230
Adjusting engine idling speed
If the engine speed differs from that stated
above, it must be adjusted.
The engine idling speed can be reset
using the adjustment screw on the fuel
pump.
Minimum
speed
adjustment
screw
Lead seal
10
51