http://recipebook.bentasker.i2p/posts/pork/bbq-pork-loin.html
Light all burners on the barbecue and leave the lid down to preheat to around 200c Once up to temperature, turn off the central burners (if it's a two burner BBQ, turn one off) Place the meat over the inactive burner(s) and close the lid Avoid opening the lid too regularly and try to keep the temperature between 160c and 200c Cook time is similar to roasting in the oven : 35 minutes per 500g, plus an additional 35 mins At the end of the time, either cut in half, or use a meat thermometer...