I removed the fresh air vent from the driver's side of my '68 cougar and the gasket pretty much disintegrated. Anyone have any ideas what to use to replace the gasket material?
I know it's an air seal but knowing my luck, the stupid thing will rattle without it.I used the closed cell PVC tape on mine, the softer foam seams to hold more water if there is a leak, and we know how those cowls like to leak.
You do know that the gasket you are replacing is an air seal only
If you are getting water in the area where the vent bolts to the underside of the cowl than you have rust through.
I highly recomend you apply a couple coats of a good quality rust preventive paint like POR15 inside the can that goes up into the cowl and the under side of the cowl also, If you ever pull the heater assembly you should do that side also.
I have used the left over's for all kinds of stuff.
below is a link to what I used.
I think I have some of that lying around. I'll have to look.have you considered using the window weld ribbon sealant? Pliable and will never dry. I havent done it to mine for the cowl, but I've used it in many places in lieu of a gasket. Places like the hockey stick trim, rear headlight to body seal, etc.