the number 1 piston has some slight up and down play, very slight, and i think the rd one has alittle side to side, like i said very slight, it didnt look like the bearings were gone or anything like that, and with the coil, little more difficult, as its a pack and not a cap, and getting back there is near impossable, i made the mistake of pulling off all the spark plug wires at one time, it was NOT fun