After a moment of brilliance (well actually reading the manual!) I have wired up the current
blower fan without having to drill any new holes, install new switches or any other major modifications.
is fitted with a funky soft touch instrument panel that comes with 5 User Definable "F" keys. After reading the manual I figured it should be simple to wire the fan into one of these.
And voila! It was. Quick single
cable run from the fan back up to the panel, inline fuse and a couple of spade connectors and I have a manually switched engine
fan. It actually works totally independently of the engine
as it is now wired into the house circuits but that isn't a problem given we aren't likely to forget it is running thanks to the "roar" the fan makes.
I am still going to look at possibly baffling the exhaust
duct to reduce the noise
or try to source a suitable radial fan but right now we have a system that works where we can control the fan and only really use it when the engine is running for a prolonged period. Best thing is I have to pop down to turn the anchor windlass
on so can quickly shut the fan off at the same time as we come up to drop the hook.
If only everything in life was that easy