had one apart ,too replace trottle shaft o rings. the are not the same as a 6.2,it has 2 extra springs one i,m sure where it goes but the second one i,m not 100% sure.didn,t notice them and they make it harder to take apart,the small one kind off fell out of nowhere. put pomp back together and it doesn,t start. i don,t see them in your diagram,looks more like a 6.2. thanks