RDG603A73 - Issue 3
Page 21 of 96
SECTION 5
– Installation
NOTICE:
REFER TO THE SHIRE MANUAL PRIOR TO INSTALLING THE ENGINE.
1. Ventilation
•
All internal combustion engines radiate heat and require cool, clean air to aid complete
combustion.
•
Please Ensure that adequate engine room ventilation is provided, by fitting at least two
vents of an aperture of not less than 15,000mm
2
each (24in
2
).
An allowance must be made for any grills, louvres or bends placed in the
airflows and generally an increase of 25% in area is sufficient to overcome any
restriction problems.
2. Engine Beds
•
These should be a minimum of 10mm thick, extended rearward and be welded to the
hull and forward to the bulkhead. Webs or gussets must be welded in place midway
to prevent flexing.
3. Pressurised Water Header Tank
WARNING:
SCALD HAZARD!
NEVER REMOVE THE HEADER TANK CAP IF THE ENGINE IS
HOT. STEAM AND HOT COOLANT MAY SPURT OUT AND CAUSE INJURY. TIGHTEN
THE HEADER TANK CAP SECURELY AFTER BEING REMOVED. STEAM CAN
SPURT OUT DURING ENGINE OPERATION IF THE CAP IS LOOSE.
•
The pressurised header tank should be mounted higher than the level of the engine,
no less than 300mm, and no more than 1m from the engine, to prevent cooling system
air locks.
•
Shire 43 WB & 49 WB: Two hoses are used on these engines. One is fitted between
the smaller internal diameter (3mm) outlet (on the left hand side of the tank) and the
