I started heading from Sydney to Lithgow for a trip to Turon Gates.
I have recently bought a new radiator. It started to overheat. I was starting to head home but I pulled over again to check out the motor.
I removed the cap and noticed no rubber. We continued on and eventually put our tent up next to a track once I thought it was getting too hot again.
We purchased a new cap the next day and drove for 5 hours thinking all was well. Then it started over heating again. I got it home yesterday and I can't see where the water is leaking but it is leaking as I put in 2 litres. The oil is clean. Could I have done a welch plug?
Please help.

Clive