Rick Harrison trusts his experts more than he trusts his potential sellers. That's the way he has to run his business on 'Pawn Stars' (Mondays, 10PM on History). That reality came as a shock to the owner of a Porsche 911 Carrera engine., when Danny Koker, Harrison's expert mechanic, said the engine might be damaged.
Koker saw some surface rust, and deduced from the fact that none of the compartments were closed that there was also likely damage inside the engine. "What's going on on the surface is going to be going on, to an extent, inside," said Kokel. "And that's the unknown." The engine's owner didn't like that and flat out called Kokel's assessment wrong, saying it was a good engine.