Barrus Shire 65 Original Instruction

Contents

Barrus Shire 65 Original Instruction Manual pdf 21 page image

RDG603A31- Issue 4 Page 21 of 88SECTION 5 – InstallationNOTICE: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 completecombustion. Please Ensure that adequate engine room ventilation is provided, by fitting at least twovents of an aperture of not less than 15,000mm2 each (24in2).An allowance must be made for any grills, louvres or bends placed in theairflows and generally an increase of 25% in area is sufficient to overcome anyrestriction problems.2. Engine Beds These should be a minimum of 10mm thick, extended rearward and be welded to thehull and forward to the bulkhead. Webs or gussets must be welded in place midwayto prevent flexing.3. Cooling System Ensure pipe work to and from the skin tanks is of sufficient bore. Ensure tight bendsand elbows are avoided or kept to a minimum (sizes are listed overleaf).4. Skin TanksThe ideal skin tank internal thickness is between 50 and 75mm, the table below will indicatea suitable tank size. However, volume will not compensate for lack of surface area. It shouldbe recognised that fitting a large calorifier will increase the theoretical cooling capacity onlyuntil it is up to temperature. It is unlikely that a boat on the inland waterways will operate atfull power for long periods of time. The engine cooling water outlets are on the right hand(starboard) side of the engine. The outside of the skin tank must be completely below thewaterline all of the time for effective cooling.