i have a 1984 DT 300 with a radetor lack, it has a over flow that goes to it, the part that goes to the raditor has been broke off, tried jb weld stops it alot but still looses water, has anyone tried to drilling a gigger hole and putting something elese in it place to get water to the engine, hate to have to buy raditor to fix this problem. also oil cooler top hose is striped any ideals how to fix, or should i get new oil cooler? anyone with ideals would help. thanks mark in ohio