The car that Daniel is helping Miguel to fix is a Toyota Corolla from 2006 - 2011. These engines don't have serpentine belts, but timing chains and are rarely replaced.
When Young Terry gets a tattoo, the tattoo artist is marking Terry's right side. When the tat is finished, it's on Terry's left side.
When Terry opens his shirt to reveal where the tattoo used to be, he is looking in a mirror and it is his reflection that the viewer sees. Therefore the tattoo was always on his right side as is shown in the next scene of Terry first getting the tattoo.
When Terry opens his shirt to reveal where the tattoo used to be, he is looking in a mirror and it is his reflection that the viewer sees. Therefore the tattoo was always on his right side as is shown in the next scene of Terry first getting the tattoo.