depends on the type of adjuster fitted, i think it should auto tension on your engine (nighthawk will probably know) but check and make sure it hasnt got stuck, thus letting the belt tension ease up
oh ye forgot to say went out in it for a couple of hrs tonight ran excellent went down to pompey and back in a 1hr and 15 mins no pressure in the cooling system at all no pressure in the oil filler cap just very rough idling when hot didnt seem to use any fuel considering i was doing 80+ next prob is rear brakes