@Nick, I think you will see a big difference. I did something similar a month or two ago. Prior to that I had ended up fitting a new 3-core radiator, replacing all the seals between the AC condenser and radiator, replacing the water pump, belts, thermostat etc. I was happy to do those things at 200000km plus as preventative measures, but I still had heat issues on long climbs.Nick Gibson wrote:I had some time to work on the viscous coupling on the fan, i have been suspecting that it had been under performing for a while now as my over heating issues have been getting progressively worse after fitting my aftermarket burnco bumper a year ago.
After refilling the viscous coupling and having just done a 2500km trip to Northern Kruger and Mapungubwe, it looks like the viscous sorted the problem out.