I have a 1986 toyota 22r and I'm having a coolant leak from a hose that comes out from the back of the timing cover into the bottom of the intake manifold. The hose that's on it now is too large so the PO just cranked that the clamp to max and it has started leaking.
Stole the image from a thread on here, but I want to know what that that little hose that's coming off the pipe is called or the diameter of it so i can find a hose from an auto parts store.

 

Dooms like your talking about either a coolant bypass hose for the heater or one of the tb hoses. Lots of hoses in that picture