Barrus SHIRE 14 85 WB, Manual

Page: 42 / 52

RDG603A11 - Issue 10 - Shire 14 85, 130 WB Owners Manual Page 42 of 52
15. Raw Water Pump Impeller Change
The pump is located on the front of the engine bolted to either the P.T.O pulley
camshaft drive or side mounted and driven by a belt. Procedure is similar for all.
•
Remove the pump cover plate.
•
Remove the pump impeller, (special tools are available from chandleries to assist
with this task)
•
Note, do not lever against the front of the pulley housing as it is easily damaged,
and inspect the pump housing and front wear plate.
•
Replace the impeller.
•
Replace the cover plate gasket if damaged.
•
Replace any other worn components as necessary.
16. Engine Heat Exchanger Tube Stack Flushing.
•
When the engine is cold, drain the water from the engine block, drain screw is
located behind the heat exchanger.
•
Drain water from the heat exchanger, the drain plug is in the bottom of the heat
exchanger end cap.
•
Disconnect pipes and hoses from engine heat exchanger.
•
Remove the heat exchanger from the engine.
•
Mark position, and remove end caps from engine heat exchanger.
•
Carefully remove the tube stack from the centre of the heat exchanger.
•
Fully flush between the tubes to remove any dirt or scum build up.
•
Inspect the tube stack replace if damaged.
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Reassemble and refit checking the end cap "O" rings are in good condition
•
Refill the engine with coolant as described earlier (Section 3 – Installation)
17. Winterization of Seawater Cooling System.
•
To prevent frost damage to the seawater cooling circuit components because of
water freezing, ensure all seawater or raw water is drained from the system
•
Alternatively, run neat anti-freeze through the seawater pump inlet to protect the
system
Ensure that the anti-freeze is drained before starting the engine the next season
to ensure that it does not get into the marine environment. Dispose of correctly