A friend needs to replace the starter battery on her boat, run by a BMC diesel engine,tried to start it the other day and it wouldnt push the engine at all, tried to charge it but wouldnt take the charge....looking at the possibility that a new battery is needed, but investigating all possibilities like alternator needs attention/replacing.
Ok i know i am new here and this question has probably been asked before, but what ampage or size of battery is the needed to start a Diesel BMC engine having seen the old battery it looks like its one of them two handled jobs but cant make out the ampage or any of the writing on the old battery.
Much appriciation in anticipation