I have this `73 240z and had it for the past 15 years. my question is; on driver`s side, there`s a hose coming out of the engine block used to evacuate
fumes from the engine base. It was originally connected to a smog pump (which was removed by the dealers when new.) Where should i connect this hose ? I've tried running it to the air filter box, but it sent too much crap in the filter and carbs. Then tried a `noret`valve (exhaust check valve) in the
exhaust pipe and connected the hose to it. This made a wall of smoke on the highway so i`ve removed it. That hose is now dangling free, unconnected, so fumes go out in the open and stink of exhaust fumes. I'm thinking of running a small pipe all the way to the back of the car so fumes won`t get in the car anymore. Is that a good idea, or does someone have a better solution ? A smog pump reinstallation will not be considered. I`m in Canada; no mandatory
annual inspection, very loose emission control.

 

i just bought a K&N air filter and put it over that tube coming out of the block, thats i see most people doing it....