bigsbetter

My new LSTis about 2 weeks old .I've ran about 2/3 gallon of fuel in it. the original glow plug coil came apart while running it .I put in a new plug and it ran great for 1 tank of fuel .Now the engine is locked up . I t looks like while the glow plug coil was exiting it tore up the piston and cylinder sleeve. should I send it back to Losi with the original plug in it? or the one it actually locked up with?or shoud I just get a new engine? Will this be coverd under warranty? please help!!??