Service Manual

ISB, ISBe and QSB (Common Rail [...] Cooling System
Section 8 - Cooling System - Group 08 Page 8-47
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Marine Applications
RESTORE™ is a heavy-duty cooling system cleaner that
removes corrosion products, silica gel, and other deposits.
The performance of RESTORE™ is dependent on time,
temperature, and concentration levels. An extremely
scaled or flow-restricted system, for example, can require
higher concentrations of cleaners, higher temperatures,
longer cleaning time,s or the use of RESTORE Plus™. Up
to twice the recommended concentration levels of
RESTORE™ can be used safely. RESTORE Plus™ must
be used only at its recommended concentration level.
Extremely scaled or fouled systems can require more than
one cleaning.
WARNING
Coolant is toxic. Keep away from children and pets. If
not reused, dispose of in accordance with local
environmental regulations.
If not previously done, drain the cooling system. See the
Drain section in this procedure. Do not allow the cooling
system to dry out.
CAUTION
Fleetguard® RESTORE™ contains no antifreeze. Do
not allow the cooling system to freeze during the
cleaning operations.
CAUTION
The system must be filled properly to prevent air
locks. During filling, air must be purged from the
engine coolant passages. Be sure to open the
petcock on the aftercooler for aftercooled engines.
Wait 2 to 3 minutes to allow air to be vented; then add
mixture to bring the level to the top.
Immediately add 3.8 liters [1 gal] of Fleetguard®
RESTORE™, RESTORE Plus™, or equivalent, for each
38 to 57 liters [10 to 15 gal] of cooling system capacity.
Fill the system with clean water.
WARNING
Do not remove the pressure cap from a hot engine.
Wait until the coolant temperature is below 50°C
[122°F] before removing the pressure cap. Heated
coolant spray or steam can cause personal injury.
Operate the engine at normal operating temperatures, at
least 85°C [185°F], for 1 to 1½ hours.
Shut the engine OFF, allow to cool to 50°C [122°F], and
drain the cooling system.