Flushing The Cooling System - Rotax 914 Series Maintenance Manual

3.3)

Flushing the cooling system

▲ WARNING: Never open radiator cap when the cooling system is hot. For
The system is flushed using pure water at a pressure of 2 bar (29 psi).
■ CAUTION:
◆ NOTE:
Refill newly mixed coolant into the expansion tank (highest point of the cooling
system).
◆ NOTE:
Effectivity: 914 Series
Edition 1 / Rev. 0
BRP-Rotax
MAINTENANCE MANUAL
safety's sake, cover cap with a rag and open slowly. Sudden
opening of the cap could provoke the escape of boiling coolant
and result in scalding.
Where water-free coolant is used, the cooling system must be
drained of water correspondingly after flushing. The residual
water must not exceed the max. permissible limit prescribed by
the coolant manufacturer.
For the flushing, open the lowest located coolant hose (either at
water pump or radiator).
Run the engine for a minute and replenish coolant as required.
12-00-00
page 21
May. 01/07