Impeller: Checking & Replacing
23675
NOTICE! If you have a seacock installed, close it now
to prevent any possible water intrusion; otherwise,
plug the intake hose with a suitable stopper to prevent
water entry.
NOTICE! Always carry a spare impeller on board.
1. Remove the hose clamps and hoses from pump.
2. Loosen the four screws 1 and remove the
housing 2.
3. Inspect the impeller 3. If there are cracks, signs
of burning or melting on the edges, or any other
visible defects, the impeller must be replaced.
Inspect the O-ring 4 for nicks, cuts, and wear.
Replace as necessary.
4. Lubricate the pump housing with non-petroleum
based lubricant, suitable for rubber, such as glyc-
erine. If you have purchased the Volvo Penta
impeller kit, a packet of glycerine is included.
5. Reinstall the impeller. Reinstall the housing.
Tighten bolts to 19–24 in. lb. (2.2–2.8 Nm).
6. Reinstall the hoses and hose clamps.
If you closed the seacock, be sure to reopen it before
restarting the engine.
Freshwater System
5.0 GXiE-P, 5.7 GiE-300-P, 5.7 GXiE-P
If your engine is equipped with a freshwater system,
be sure to check the freshwater coolant (antifreeze)
level before beginning each trip. If coolant is not visible
in the reservoir, top up the level by removing the cool-
ant filler cap B and adding coolant via the fill spout. Do
not fill above the maximum fill line A when topping up.
WARNING!
Do not open the coolant filler cap when the engine is
warm. Steam or hot fluid could spray out, causing
severe burns.
If it becomes necessary to top up the coolant regularly,
inspect the cooling system for leaks. If leaks are
detected, please contact an authorized Volvo Penta
dealer at your earliest convenience.
Numerous types of coolants are available in the after-
market for use in engine cooling systems. Volvo Penta
gas engines equipped with freshwater cooling systems
currently use a 50/50 mix of silicate-based ethylene
glycol coolant (typically green in color) and distilled
water.
Do not use other coolant types such as: Volvo Penta
“VCS” coolant (yellow color), Propylene Glycol, or OAT
and HOAT coolants.
51806
Maintenance
140 47701898 12-2010
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