RDG603A11 - Issue 8 - Shire 14 70, 85 & 130 WB Owners
Manual Page 11 of 50
SECTION 3 - Installation
1.
Ventilation
•
All internal combustion engines radiate heat and require cool, clean air for complete
combustion purposes.
•
Please ensure that adequate engine room ventilation is provided, by fitting at least
two vents of an aperture of not less than 15,000 mm
2
each (24 in
2
).
An allowance must be made for any grills or louvres 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 and extended rearward and be welded
to the hull and forward to the bulkhead. There must be webs or gussets welded in
place to prevent flexing. They may be steel or stainless steel glassed into a GRP
hull.
3.
Pressurised Water Header Tank
•
The pressurised header tank should be mounted higher than the level of the engine
and no more than 1 metre from the engine, to prevent cooling system air locks.
Figure 3-1: Shire 70 WB Header Tank Connections
