Hello Brennie, what i don't understand is that there are hundreds of 230's around the world, probably thousands, that have original fans etc, that don't suffer overheating, many in warmer climates than ours in the UK, including my car. I do mainly short journeys, and even with the temperatures we've experienced this past week, i've had no problems
Rodd made some good suggestions, but you don't say if you've investigated and eliminated all of these, particularly the thermostat and timing
Rodd's to do list:
It seems that to get a cooling system into a healthy baseline state one should:
- Pressure test the coolant system
- Chemical descale the coolant system
- Check effectiveness of water pump (not sure how)
- Check effectiveness of fan viscous coupling (if so equipped) (Not applicable)
- Check effectiveness of thermostat (in a pot on the stove, with thermometer)
- Check effectiveness of radiator (thermo imaging looking for cool spots)
- Ensure car is not running lean
-- fix anything found faulty in above tests
Plus check and adjust the timing if required
I'm a believer in fixing the route cause, rather than changing or adding equipment to get around a problem, as it may come back to bite you
Have a read on here, particularly the last few paragraphs
https://www.sl113.org/wiki/Cooling/CoolingSystem