When reassembling the heater ducts under the engine is there a high temp sealing material that goes between the joins or is it just metal on metal?
Picture is just an example of the joints, but I'm asking about all of them.
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Full Version: Heater Duct Joint Seal
The 914 Rubber piece is the best way to go, but before these were available my friend and 914 guru Brad Mayeur told me to use the red high temp silicone sealant. Squeeze an even bead in the groove on the bottom and then all around the top. Let it sit for about 10 mins or until it just skins over and then install. Wipe off excess.
Besides the seal under the "cap" I've seen some that have what I think is a cork-like strip in the channel below. -it seemed original and I think it was glued in.
Yes the original was more of a cork material. We made the seal from a high temp silicone so you could reuse it if you want. We also include stainless screw with allen heads so that you can remove easier without stripping as this area of the car tends to get quite dirty, and these can corrode easily (stock).
In addition to the rectangular gasket shown in the picture in post #2, there's also a U-shaped gasket that goes in the branch piece shown in the first pic. It fits in the channel at the front of the branch piece (under where the clamp part gets attached).
Unfortunately, I haven't seen that gasket available anywhere, and each side is a slightly different size. I was going to cut up an extra set of the rectangular gaskets to fit, unless Mark comes out with the correct gaskets before I get around to installing my heater parts.
Unfortunately, I haven't seen that gasket available anywhere, and each side is a slightly different size. I was going to cut up an extra set of the rectangular gaskets to fit, unless Mark comes out with the correct gaskets before I get around to installing my heater parts.
QUOTE(BillC @ Aug 20 2020, 01:56 PM) 
In addition to the rectangular gasket shown in the picture in post #2, there's also a U-shaped gasket that goes in the branch piece shown in the first pic. It fits in the channel at the front of the branch piece (under where the clamp part gets attached).
Unfortunately, I haven't seen that gasket available anywhere, and each side is a slightly different size. I was going to cut up an extra set of the rectangular gaskets to fit, unless Mark comes out with the correct gaskets before I get around to installing my heater parts.
I have never seen a gasket in that location and there is not much gap for one.
I got the 1" x 1/16 rubber cork gasket material. It was $10 for a 100 ft roll. I am going to try a piece there.
dup
IIRC, the gasket was silvery and didn't look like cork, like the rectangular gasket. It seemed like a metal or metal-mix, like lead and/or asbestos, and maybe 1mm thick. Or, maybe it was cork that picked up so much metal from the fan shroud that it looked like metal. Either way, it was very fragile and would break if removed.
That adhesive cork strip looks like it might work pretty well.
That adhesive cork strip looks like it might work pretty well.
The seal here was cork - probably should have removed it before i painted it
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Click to view attachment
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