My early 70’s Ford truck’s intake plenum disintegrated several years ago. It is a sort of 2 inch x 4 inch (in cross section) rectangular shaped rubberized tube which goes between the front grill area to the air-cleaner intake. Used to route fresh air into the engine. I constructed a “temporary” replacement out of duct tape. But I’d like a more permanent sol’n. I’ve asked at my auto parts store, and looked on web site like Rock Auto, haven’t found an aftermarket replacement. Any ideas how I could make one myself?
The duct tape version is too flimsy, tends to collapse. And it isn’t very tolerant of the heat inside the engine compartment. My current thinking is to use some cardboard, the type like from a pizza box, that kind of cardboard, fold it into the proper rectangular shape, then to stiffen it up and make it more durable, wrap it with 3 or 4 layers of aluminum metalized tape, the kind of tape like if you were wrapping the heating ducts in your house.