Owner`s manual

• Drainexhaustmanifoldsofrawwaterbyremoving½”NPTpipeplugs.
• Drainengineblockofrawwater(ifrawwatercooled).
 • For5.7Lapplications:removeknocksensors/drainplugsfrombothsidesofthe
engine block.
 • For6.0L,6.2Land7.4Lapplications:Removedrainplugsfrombothsidesofen-
ginedrainhoses,drainfitting#6SS-partnumber94MV8-1476;removalofdrain
plugswillrequirebothan11/16”and5/8”sizewrench.
• Drainheatexchangersofrawwater.
 • Opencooledsystemswillhaveanoil/transmissionheatexchanger.
  •Remove1/8”NPTdrainplugandallowdraining.
 • Closedcooledsystemswillhaveanoil/transmissionandengineheatexchanger.
  •Remove1/8”NPTdrainplugandallowdraining.
• Reinstallexhaustheaderdrainplugs,engineblockdrainplugs,andheatexchangerend
caps/drain plugs after all raw water has been drained. Drain other components that
contain raw water, such as the water heater.
• Fillallcomponentsofrawwatersystemwithanon-toxic-50F.(-45C.),-60F.(-51C.)or
-100F.(-73C.)Marine/RVAntifreeze.Freezeprotectionlevelwilldependonclimate
location. Marine/RV Antifreeze will provide freeze protection to water pockets
that did not drain and necessary corrosion protection. Approximately six (6) gal-
lons of Marine/RV Antifreeze will be needed for open cooled systems. Approximately
three (3) gallons will be needed for closed cooled systems. There are two methods for
fillingyourenginewithantifreeze;
 • Open Cooled System
 •Closethru-hullwaterpickupseacock.
•Fillengineblockandheadsfromthermostathousing.Removebothexhaust
header feed hoses. Lift either the port or starboard hose as high as possible and
fill until full. The other removed hose allows air to purge.
•Fillportandstarboardexhaustmanifoldsbyremovingthermostathoseends.
Lift hose end as high as possible and fill until full.
 •Fillseastrainerifnotfull.
 • Closed Cooled System
  •Closethru-hullwaterpickupseacock.
•Fillrawwatercomponentsbyremovingbothone-inch(1”)hosesfromexhaust
downturn adapters. Lift either the port or starboard hose as high as possible and
fill until full. This should fill the raw water side of the engine heat exchanger,
oil/transmission heat exchanger, raw water pump, and sea strainer. The sea
strainer may need to be opened to purge air.
  •Fillseastrainerifnotfullbyendofprocedure.
  •Filldownturnexhaustadapterswith1/4to1/2gallonsofantifreeze.
  •Reinstallhoses.
ILMOR MV8 Owner’s Manual • Page 39
Method 1
Engine Off