I picked up a 91? or so safari for my wife, not really sure what year. It does have independent front suspension.It's in awsome shape, it was owned by an older lady who used it maybe twice a year. Anyway, it's leaking oil from around the outlet at the bottom of the oil tank. There is an o ring there, but how do I take it appart to replace? Does it twist appart or ?. Not sure if I can get my hand inside to hold the other end.Do not want to take this to the shop. If I cant fix I will mix the gas, but would rather not.