So, did my normal run and no different. I did stop enroute and quickly checked the rad, barely any cooler at the bottom than the top. But when I got back I flicked the leccy fan on and it just idled away for ever. So, to my mind it means that the rad is able to cope just about but it's at it's limit without assistance pretty much all the time. Options are, to my mind, leave it as is and fit a thermo switch, refit the copper piping to see if the increased surface area and capacity will do the trick or refit the auxiliary radiator which means I'm a few quid down and two days labour for no benefit. I guess I am ahead because it behaves like it did with two rads but only has one. I can't do much about a cowling like the Mini because it's a puller so the air needs to escape.
Not at all dispirited though, it's still a bloody good laugh, make no mistake.
Mini Cooling Fan
Started by
yukonphil
, Jul 11 2025 06:06 PM
46 replies to this topic
#47
yukonphil
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- Location: UK
Posted 27 July 2025 - 07:41 AM
Just to round off, went out for an hour yesterday, still running around 90 so I think I will just leave it at that for this season. As I can now use it I'll concentrate on other improvements. When I replaced the thermostat originally I had a real job getting the housing off and the stat out due to corrosion, there also seemed to be a lot of rust in the block, this could mean the coolant passages are restricted and I may be fighting a battle on the wrong front. I'm going to rebuild/replace the engine this winter so I'll make sure it flows properly before I fit it. Many thanks to all who have offered help, it's unlikely you've heard the last from me!
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