How to Fix Passenger Cowl Vent Seal Gap

Alaskan_TA said
Thankfully my camera fits in there, top & bottom shown;

View attachment 1715260864

View attachment 1715260865

FJRdoc said
I currently installing my restored non-AC heater box in my 1970 Duster.The box and blower motor installation went in without any problems. I installed the J bolt on the cowl and through the back of the heater box. After looking closely at the foam cowl seal, I noticed that it is gapping at the front. There isn't any way to clamp the seal and box to the front of the cowl. What's the easiest fix for this? Should I remove the box and add some additional sealing material on top of the cowl seal to help fill the void?

To me, it doesn't look like the heater is centred properly into the aperture in the cowl/plenum. Also, if the j-bolt isn't hooked into the correct position in the cowl/plenum it can tension up at a funny angle. That said, if the j-bolt is in the wrong position, I don't think it is long enough to correctly register into the slot moulded into the inside of the heater casing, (I might be wrong on this point).