WELL I FOUND OUT I HAVE A BAD CYLINDER IN MY MERC 1500. IT HAS 0 COMPRESION. IT ALSO LOOKED AS IF THERE WAS WATER IN IT AT ONE TIME. ANY IDEAS AS TO THE LEAST EXSPENSIVE WAY TO FIX THIS AND PLACES TO FIND PARTS WOULD BE GREAT. ALL THE OTHER CYLINDERS HAVE 125 LBS.