ILMOR 2011 MV8 - Raw Water (Sea Water) Draining and Filling

Ignoring elevated temperatures on a temperature gauge or any other evidence of the
engine operating at temperatures above recommended levels can result in serious
damage to the engine. Any resulting damage will not be covered by the warranty.
•Inspecttheinsideoftheimpellerhousing.Ifanyrubberextrusionsontheendofthe
armappearfrayedorworn,itshouldbereplaced.Ifthereisnotaslightbendtothe
paddle-wheelarms,replaceit.Debrisenteringtheimpellerinevitablywilldamage
it.However,theimpellerservesitspurposeindeflectingdebrisandkeepingitout
ofmuchmoreexpensiveinternalengineparts.
Raw Water
(Sea Water)
Draining and Filling
2011 ILMOR MV8 Owner’s Manual • Page 33
•Anyuncertaintyabouttheconditionoftheimpellermeansthatitshould
beremovedandinspected.Theimpellerfitsverysnuglyandwillrequire
somecareinremovingandre-installingorinstallinganewone.This
ensuresproperoperation.Theuseofsoaporwater-basedpetroleum
jellywillhelpwithinstallation.Notethatproperplacementonthegear
resultsinasqueezeonthearms.Thisisthecorrectinstallation.
•Placeagasketbetweenthehousingandthecoverareensuringthat
thesurfacesaresmoothandclean.Re-installwiththescrewsloos-
enedwiththefaceplatewasremovedearlier.Donotover-tightenthe
brassscrewsasitwillcausethemtobreak.
(See also the instructions for Flushing Raw Water/Sea Pump System that appears in After Each Use
section immediately preceding this section of this Owner’s Manual. For closed cooling systems see
“Coolant Draining (Changing) and Filling,” which follows immediately.)
NOTE: Filling and air bleeding is automatic when the raw water pump is op-
erating i.e. pumping fresh water from the lake or garden hose. There is no
need to leave any caps, drain plugs, or hoses open for air bleeding.
For open cooling systems:
•Drainexhaustmanifoldsofrawwaterbyremoving½”NPTpipeplugsfromwaterrails.
•Drainengineblockofrawwater.
• For5.7Lapplications:Removeknocksensors/drainplugsfrombothsidesofthe
engineblock.
• For6.0Lapplications:Removetheelectricheater17mmAllenplugfromengine
blockrawwaterpumpside.Removethe10mmAllenplugonstartersideofen-
gineblock.
• For 6.2L applications: Remove electric heater 17mm Allen plug
from engine block raw water pump side. Remove the 10mm
Allenplugonstartersideofengineblock.