Clean The Engine Flame Arrestor/Air Filter - ILMOR 2011 MV8 User Manual

Clean the Engine
Flame Arrestor/
Air Filter
Note: Access to the transmission fluid filters is somewhat difficult in the confined
space in some models. Nonetheless, this maintenance is vital to long, trouble-free
use of the transmission. That is why it is recommended that this service be performed
by an authorized ILMOR dealer.
ILMOR recommends that the flame arrestor
and cleaned or replaced every 100 hours or annually, whichever comes first. Ideally,
this should be done at the beginning of the boating season. During storage, material
may collect inside the flame arrestor housing, whether airborne or left by
small creatures.
It is extremely important to take care that while removing, replacing and while
the flame arrestor is off the engine absolutely nothing foreign enters the engine
through the area normally covered by the flame arrestor. Any materials entering
can cause damage to your engine and will void the warranty.
Because this process should be completed while the engine is cool (in order to avoid burns),
it is recommended that this check be completed prior to starting the engine.
The MV8 engine is equipped with a U.S. Coast Guard-approved flame arrestor,
which is an ILMOR specific air filter. T he air filter conforms to SAE J1928 and ISO
13592, which are special flame arrestor standards. Therefore, other filters cannot
be used as replacements.
The purpose of the flame arrestor is to contain any backfire that may occur
during engine operation. This was a much bigger issue in older, carbureted en-
gines. It is uncommon in electronic, fuel-injected engines, but it is possible and
must be addressed.
The air filter for the MV8 engine is 94PE01163.
• Ensure the engine is OFF and the engine safety starting switch is disconnected.
Leave the throttle/shift control lever in neutral. The engine must be cool.
• Carefully remove the flame arrestor from the engine, using a screwdriver on the
clamp screw. Take care that no foreign objects, including dust, enters the engine
through the open area.
• Tap the element to dislodge any large embedded dirt and then gently brush with
a soft bristle brush.
Note: DO NOT use gasoline, steam, caustic cleaning solution, strong detergent, high-
pressure car wash or parts cleaning solvents. Any of these can harm the cotton filter
media, as well as shrink and harden the rubber and caps.
• Either spray on ILMOR air filter cleaner or allow the air filter to soak in a pan filled with
air filter cleaner. Allow the cleaner to work for approximately ten (10) minutes.
2011 ILMOR MV8 Owner's Manual • Page 31
be inspected