i need some help . i have a 1998 spec classic and it"s leaking from behind the water pump pulley. it"s not alot it seem to be a drop or a slow trikcle. . if i remove the over flow tank cap it starts to leak or when i park it after driving it . my questios are the following. is there a seal or bushing that i can replace? or is it time to replace the pump.has anyone replaced a pump and are there any tricks that i should know of before i start on this ... :impatient