I learned a little trick WAY back in the day & that's cooking under the hood using the heat from the engine. Just wrap up what you want cooked in a few layers of foil & tie it off near the best heat source for what your needs are. Obviously the exhaust manifold is your highest heat source. Then on top of the engine your looking at high 100s - low 200s. I'll foil up hotdogs and toss them on the intake manifold for about 15-20 min. Also a great way of reheating food. Sure It may sound nasty. But that's only if your trying this out on some nasty leaky engine. Just don't forget it's there if your headed for water or mud.
Australians have been doing this for years.
I did a nice thick steak, seasoned with SPG and sliced onions, wrapped it all up in foil, tied it nicely to the exhaust manifold and closed the bonnet (hood to US residents).
Set off to the coastal town ( about a 1 hour drive) and.... road blocked, there had been a pile up.
forgot about the steak, only remembered about it when I could smell burning onions.
Traffic still wasn't moving so I opened the bonnet ( yes it's a bonnet) to find the engine vibration at tickover had worn through the foil, onions on the manifold, steak looked like an arabs flip flop, you could patch a tyre with it. That steak was destroyed.
I hope the crows enjoyed it.
Never made any bush tucker since.