MFI Heat Exchanger Question

[Ron,K]

What is connected to this duct? I trying to install this shroud and can't find anything in my books to indicate what this is routed to.

[dtw]

This is the warm-up air hose connection for the MFI. If you look at the snoot for your MFI intake, you'll see the flapper box that's connected to the snoot on one fork, and I guess connected to nothing in your case on the other fork. This should be connected to an air hose which snakes through a hole in the engine sheetmetal and down to that heat exchanger.

Many cars anymore, this is no longer connected.

[Early_S_Man]

Ron,

That is a heat exchanger compatinle with a 2.4 MFI engine, but that outlet you circled was not present on the 2.4 MFI engine, so that may be some sort of 'universal' replacement exchanger with outlets for all years of MFI engine ... or the outlet was added by someone after it left the factory.

The air filter intake horn for '69-'71 MFI engines used a similar-sized hot air hose, but the 2.4 engine used a much larger hose that attached to the larger end on the right ... about 2" in diameter.

If you are installing those exchangers on a carbureted engine using a factory all-metal air cleaner inlet 'snout' ... you may want to hook that outlet to the hot air inlet on the snout. In that case, you may want to cap the 2" outlet to the right, and the 1" outlet far up to the left, near the heater outlet for the cockpit heat.

[Ron,K]

Thanks for the replies. I should have been more specific in my original post. This is for a 2.4 T motor with MFI. Warren, I think you're probably right. I'm just going to cap off the circled outlet, and use the other outlet as a heated air source for the warmup mechanism.