HJ60 existing radiator modification query for 12HT Engine

google up ausie desert cooler,

cheers

Naveed.

Yes this work can be done and is not unheard of. If your radiator repairer has the capacity to do this work, then go ahead and get them to do it. You are correct in the method they use. The radiator tanks are attached to the core with solder. The unit is heated with oxyacetylene torch, and the old core removed. It must be well cleaned out and care taken to apply good quality solder when reassembling the unit. If the correct solder is not used, then my experience is that the solder on the top tank cracks and weeps coolant, requiring repair each two years. I 'think' the better solder has more tin content. Others may have better information on this.

We also drive up hills in 50°C heat with the AC on. My standard radiator copes okay with this challenge. Why don't you try out your existing three core and see how it goes first before spending money that you might not need to. We have a term called 'chasing your tail', meaning going around in circles without achieving very much.

Tim

With my old ute I changed the 2H motor for a 12HT. Best thing I ever did.

Of course the turbo motor ran hotter than the old 2H so I also ended up doing exactly what you are talking about. The radiator shop put a high core centre in the radiator using the same size top and bottom tanks. Worked a treat. Ran a lot cooler and never had a problem for the 5 years I owned the car. I naturally only ran demineralised water with toyota coolant.

Cheers

Serendipity