hi all this evening we went on a trip with about 15 other usa cars we drove for about 2.5 hours at about 15 mph this was with a festival when we returned i tryed to start about 30 minutes later and the starter could not turn the engine battery full starter cables also not starting from battery + terminal direct on starter also not turning what can be wrong after 3 hours wait it turned just enough to start what can be wrong when started a verry loud clacking soud from engine if one valve lifter dit not worked at all to hot ??? thans for advise Remco Holland