When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
993 glass gets bonded to the flange on the window opening. Around the outside of the glass there is either an aluminum or plastic channel bonded to the glass. That channel has a groove in it which the 993 outer seal snaps into.
964 glass gets inserted into the seal while still off the vehicle. The glass sits in a slot in the seal which wraps the outside and “holds” it inside the seal. Once seal is on the glass, the whole thing is placed into the car and there is another slot on the backside of the seal which is pulled over the flange (body) of window opening (onto the interior side).
My understanding is that it is impossible to stick 993 glass in the 964 seal. Therefore, if I’ve got a 964 seal, I must have 964 glass.
Could be. Question is why. 993 glass is not hard to obtain. Strange. Have you asked the previous owner?
The biggest issue is not a little moisture in the car its water that settles in the channel under the top seal at the base of the glass and rusts the body underneath,
I would not go so far as to open the can of worms and remove the glass. In the 993 the glass is bonded to the car body under the seal but there is a gutter all the way around the glass under the top strip in your picture that can accumulate water.
My solution was, after the car has been out in the nice hot sun for a few days baking the water out of the channel I slipped the nozzle of a caulking tube of black construction roof flashing sealer under the top strip and filled up the channel under it all the way around the window. An additional benefit of doing this is the flashing sealer also will glue down any parts of the top strip that don't want to stay flat. Now since the is no open space under the top strip there simply is no place for water to go and rust around the glass or leak into the cabin.
Others have had good luck using other types of sealants both for automotive glass applications and home plumbing fixture use. I used the flashing sealant rather than the silicone stuff because it has extremely aggressive adhesion to both the body and the glass, dries semi-hard and any overfill that oozes out from under the top strip cleans off easily with a little solvent. It took about a tube and a half to do the job where I filled the channel but did not fill beyond the top strip so there was minimal clean-up when done. This fix has been in place on my car for a few years of daily driver use and I have not experienced any ongoing leaks or moisture retention,
That car had a window out paint job. I remember the previous owner posting it. Maybe the shop he used
installed the wrong windshield. All of this was done not that long ago. Can the seller give you the shop info who did the work?
He had the body shop put in a new windshield while the old one was out. The seal is definitely old and from a 964.
Based on that, presuming that before the paint work, somewhere along the line someone swapped to a 964 glass and seal (reasons unknown).
So now when the body shop got the new glass, I’m going to assume they had no idea and ordered 993 glass based on the VIN.
From there, who knows the level of head scratching that ensued? Did they realize the glass didn’t match the old one and some how got another 964 glass? Did they remove the plastic channel off the outside of the new 993 glass so they could fit it in the old seal? Did they somehow manage to fit the 964 seal over the outside edge of the 993 glass and plastic channel? Proper course of action would have been to just glue the correct 993 glass and buy a new $80 993 seal!!!
I’m now more curious than I was this morning. Hoping to check it out later and see if I can see around the seal.
I thought I read that the 964 seal gets glued around the glass. Looking at the old, dried up, flakey yellow residue stuck to the inside of the 964 seal, that looks to be confirmed.
Yet this glass is just sitting in the rubber channel without anything. I could easily pull the seal off the glass as you can see.
Sounds like 993 glass and new seals are on the horizon.
I thought I read that the 964 seal gets glued around the glass. Looking at the old, dried up, flakey yellow residue stuck to the inside of the 964 seal, that looks to be confirmed.
Yet this glass is just sitting in the rubber channel without anything. I could easily pull the seal off the glass as you can see.
Sounds like 993 glass and new seals are
Apart from everything else you have written so far in this thread you said that you had an outer rubber seal fitted to the glued-to-the-frontwindow-plastic -channel, and a windshield glued to the window frame like on all 993s, now you confirm that you have a 964 window fitted with a 964 window rubber which means your window is not glued to the window frame!
Last edited by Own Goal; Jan 21, 2020 at 09:50 PM.
Reason: Complaint about the chick thingie
@ppp000830:
"My solution was, after the car has been out in the nice hot sun for a few days baking the water out of the channel I slipped the nozzle of a caulking tube of black construction roof flashing sealer under the top strip and filled up the channel under it all the way around the window. An additional benefit of doing this is the flashing sealer also will glue down any parts of the top strip that don't want to stay flat. Now since the is no open space under the top strip there simply is no place for water to go and rust around the glass or leak into the cabin.
Others have had good luck using other types of sealants both for automotive glass applications and home plumbing fixture use. I used the flashing sealant rather than the silicone stuff because it has extremely aggressive adhesion to both the body and the glass, dries semi-hard"
Do you think this kind of aggressive sealant might eat through the paint? dry hard and crack? other unexpected blowback?
Apart from everything else you have written so far in this thread you said that you had an outer rubber seal fitted to the glued-to-the-frontwindow-plastic -channel, and a windshield glued to the window frame like on all 993s, now you confirm that you have a 964 window fitted with a 964 window rubber which means your window is not glued to the window frame!
no offence!, but are you by any chance a woman?
Uh, what? I never said I had anything glued to anything. I only made statements of how the 993 fitment is *supposed* to be (not any confirmation of what was on the car).
I started this thread because I thought I needed a new seal for my 993 glass. Whhy would I presume I had anything other than that? I had no idea this wasn't the right glass/seal until you and 911PERVY commented last night that there is no way in hell this is a 993 seal or that perhaps someone put a 964 glass in (thanks, BTW). That lead me to the fact that it is a 964 seal (which can only be used with 964 glass). Which I've now confirmed. I never made any statements otherwise.
Uh, what? I never said I had anything glued to anything. I only made statements of how the 993 fitment is *supposed* to be (not any confirmation of what was on the car).
I started this thread because I thought I needed a new seal for my 993 glass. Whhy would I presume I had anything other than that? I had no idea this wasn't the right glass/seal until you and 911PERVY commented last night that there is no way in hell this is a 993 seal or that perhaps someone put a 964 glass in (thanks, BTW). That lead me to the fact that it is a 964 seal (which can only be used with 964 glass). Which I've now confirmed. I never made any statements otherwise.
you never said anything was glued to anything?
"The glass is glued in with sealant which provides the seal to the interior"
That was a comment when Ivan J and I were exchanging replies on the way it *should* work. We were contrasting the differences of the two systems. My comment was about my understanding of each setup.
Again, never made a comment about what I did or did not have on my 993. I only took a look this afternoon after work.
That was a comment when Ivan J and I were exchanging replies on the way it *should* work. We were contrasting the differences of the two systems. My comment was about my understanding of each setup.
Again, never made a comment about what I did or did not have on my 993. I only took a look this afternoon after work.
thanks for the assistance.
Sorry for my harsh comments! Get rid of that windshield have a new 993 front window and correct seal fitted by a fitter that have worked on 993s before!
993s have the most complicated windshields out there!
Do you think this kind of aggressive sealant might eat through the paint? dry hard and crack? other unexpected blowback?
Well, it has been a few years since I did it and have not experienced any adverse issues. I guess the saying "it's smarter to be lucky than it's lucky to be smart applies" when experimenting with stuff like this.
Andy
