20-06-2019, 10:33 AM
I have given thought to clip-on fans in the past but as others have said they are really not necessary, or at least don't address the root of the issue. My car was transformed by a proper flush. When I say 'proper', I mean it was stripped down and bits of wire poked around inside the block and so forth. I'm glad I did strip it because the chemical flush I had done before dismantling more or less blocked the side water manifold completely (just thought I'd say that again for emphasis...) My car has a 'small' radiator and the whole system is barely 5 1/2 pints but it now runs cool.
With apologies to Howard I don't quite share his faith in Motometers, many's the time I've been forced off the road with plumes of steam spouting from the radiator cap and my old calormeter blithely indicating 'normal'. At the very least test it and make sure it works! In the mountains it will be constantly pointing at 'hot' anyway and when a boil happens it comes up upon you fairly fast.
An old trick was to get the engine hot then mist water spray over the front of the radiator, you can then observe whether any areas of the core are running hot or cold by observing the rate of evaporation. It can flag up a blockage or otherwise compromised area of the core.
With apologies to Howard I don't quite share his faith in Motometers, many's the time I've been forced off the road with plumes of steam spouting from the radiator cap and my old calormeter blithely indicating 'normal'. At the very least test it and make sure it works! In the mountains it will be constantly pointing at 'hot' anyway and when a boil happens it comes up upon you fairly fast.
An old trick was to get the engine hot then mist water spray over the front of the radiator, you can then observe whether any areas of the core are running hot or cold by observing the rate of evaporation. It can flag up a blockage or otherwise compromised area of the core.