Method 1-Engine Off - ILMOR 2011 MV8 User Manual

Method 1
Engine Off
• 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 applications: remove electric heater 17mm Allen plug from engine block
raw water pump side. Remove 10mm Allen plug on starter side of engine block.
• For 6.2L applications: remove electric heater 17mm Allen plug from engine block
raw water pump side. Remove 10mm Allen plug on starter side of engine block.
• 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.
2011 ILMOR MV8 Owner's Manual • Page 39