Call-out to Bollington to look at problems with a 4 cylinder Lister Alpha. Newly purchased narrowboat where the previous owner fitted the best equipment which looks good on paper. Smartgauge, Victron BMV, 2 large Victron AGM batteries, 24V 150A Mastervolt Alternator, Victron Multiplus etc.. Problem was with the ridiculously over spec’d Mastervolt alternator (like using a power station to supply a house). Mounting system was complicated and engine vibrations causing all the engine mounts and engine brackets to continuously work loose. This had been an ongoing problem. My solution was to fit a standard 60 amp 24V alternator with a smaller custom 65mm XPA pulley and single Gates Quadpower belt; Remove the 16mm charge leads (150A alternator!) and increase to 35mm due to lack of intelligent charging. Charging system is great and a match for the 220AH 24V battery bank. Engine runs smoothly and transforms the boat. Customers delighted.