Hi, Chaps, Thanks for your replies. Has only the idler gear. but it's better than nothing. would have liked the full set. ? how many, 3 off. Tried to register with the people at York, but gave up in the end. soon loose interest, when keep trying to type numbers and screw whiff letters in, and not getting it right, Teed e uss. Left the water jacket filled with water overnight used two rubber hoses being level above the head. and it seemed to have gone down about half a finger length. and no outside signs of a drip/ leak. but when I get time and energy,I'll pump up with little air. been setting a lpg regulator up to use on lpg. on a small generater, so will try this tomorrow would like to try some in the Lister at some point. Cheers Newlister.