98 mercedes m112 all of sudden started blowing out oil

All of sudden she started blowing out oil? I've redone all the breather hoses and seals have no clue I've not found anything wrong? In a 25 mile drive it will blow out several quarts May be just my luck it seems to be in limp mode? May be unrelated but now it spins over fast like a crank position sensor please help this is are only car Have a Blessed day Dave