Volvo Penta 4.3GL Instruction Book page 48

2
3
5
G
46
Remove and empty the thicker cooling hose (2) from
the circulation pump.
Remove the drain plug (3) at the exhaust pipe, then
clear the hole of any impurities using steel wire so
that the water can run out freely. Remove the drain
plug (4) from the cylinder block, then clean the drai-
nage hole.
4
Remove both hoses (5) from the seawater pump and
drain them. Turn the engine over on the starter motor
for a second (do not allow the engine to start!) so
that the water remaining in the seawater pump co-
mes out. Refit all the hoses and drain plugs. Check
the tightness of all the hose clips. Do not forget to
open the seawater cock (if fitted) before starting the
engine again.
Pivot housing (SX, DP-S)
To drain cavity in pivot housing, tilt drive unit to the
full tilt (up) position and remove the water drain plug
(G) from the port side of the pivot housing. Tilt the
drive unit to the full tilt down position. Allow unit to
drain. After unit has completely drained, replace pivot
housing plug. Inspect drive unit water intake screen
for obstructions.