ENGINE's

The engines, are independently cooled by a closed "fresh water" cooling system. It is the same as in Road transport, but instead of a radiator, it has a Heat Exchanger.

On checking the various hoses, they were either well brittle (caused by being close to radiant heat) or "sticky" caused by oil and solvents. I decided to replace them all....not an easy task with some, the "top rail" is easy on a vehicle nothing much in the way except the air inlet manifold, & the Fuel return pipes. But in the Marinised engine, their is a coolant pipe, then the Hand start shaft...what should take a few minutes takes 3 hours to free everything up and repair, good job I decided to do it now not when it failed at sea!

 

toprail
The hose that needs replacing is behind "O".  The numbers are what has to be removed, and in what order, just to get to it, not easy when some have not been removed for 50 years!

  • top rail, hidden below coolant hose, hand start shaft, diesel return pipes, air intake manifold top rail, hidden below coolant hose, hand start shaft, diesel return pipes, air intake manifold
  • all re assembled (except air cleaner pipe) all re assembled (except air cleaner pipe)
  • Hydraulic oil cooler Hydraulic oil cooler
  • Gardner "flow indicator", and temperature guage capillary. Gardner "flow indicator", and temperature guage capillary.
  • Cooland "RAM" pump just waiting for 28mm hose, only 1 odd size! Cooland "RAM" pump just waiting for 28mm hose, only 1 odd size!
  • Sea water cooling intake "scoops" Sea water cooling intake "scoops"
     

But as one of the reasons I chose this boat was the Original British Built Gardner engines, I shouldn't moan. I am so pleased they are not modern, computer controlled, non owner friendly engines, that you need a degree in gobaldygook to repair!

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