Help me help you Seal fitment, Started a new thread to deconstruct this |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Help me help you Seal fitment, Started a new thread to deconstruct this |
Mikey914 |
Aug 10 2022, 04:50 PM
Post
#1
|
The rubber man Group: Members Posts: 12,677 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
This was brought us as an issue and I'm really trying to figure this out. Any ideas of why the window would look lower and have a gap here.
Here were my thoughts - I keep looking at this and something doesn't look right. Given that the blocks are identical to the factory ones in shape and durometer, what would the solution be here? There appears to be a 1/2" section of rubber not fully seated, Is it holding it out? Could the amount of butyl behind the "chrome" be holding it down slightly? I don't think that would be the whole story. The triangle window looks like the top is seated deeper than the cap. Almost like if the top of the triangle window was shimmed out more it would push the bottom of the cap out more to "close the gap". This appears to be where the failure is - at least in my eyes. I've seen many of the caps worn and look slightly deformed from the top of the glass pushing it out, but not here. It looks like it's barely engaged. Why it would sit lower is beyond me. The initial complaint was it was too tight, which would hold it up. Submitted to the brain trust Attached thumbnail(s) |
bkrantz |
Aug 14 2022, 09:14 PM
Post
#2
|
914 Guru Group: Members Posts: 7,801 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
Looking at this photo, and assuming this is an original factory seal, I see something: the thickness of the seal is about the same as the sides of the aluminum retaining strip.
I am thinking that if the rubber seal is too thick, it will prevent the triangle from seating properly. Attached image(s) |
wonkipop |
Aug 15 2022, 12:17 AM
Post
#3
|
Advanced Member Group: Members Posts: 4,397 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
Looking at this photo, and assuming this is an original factory seal, I see something: the thickness of the seal is about the same as the sides of the aluminum retaining strip. I am thinking that if the rubber seal is too thick, it will prevent the triangle from seating properly. maybe but i've still got very good condition factory seals and they are a bit bigger than the alum retaining strip, so maybe this example of mikey914's is just a bit more dried out. but i have noticed something else. the joint between upper windscreen moulding and the pillar trim. except i don't know if its a joint, it would take @mikey914 to explain it properly in terms of how he manufactures these mouldings (or what he knows about the original factory mouldings). i think there is some kind of joint in the original factory moulding too. but maybe somehow they moulded these complex rubber pieces as a single part and what i am looking at are mould section marks. i don't know enough. here are the two factory mouldings. mine and mikey's example. you can see the joint line or the mould section line which indicates where the profile of the mould changes. this joint/change in profile occurs right in line with windscreen frame rear (and back of triangle pillar cap). with the 914 rubber moulding this isn't the same. the end of screen moulding profile appears to have a leg on it and the join or change (?) in profile is further forward. thats definitely going to have an effect on the way that pillar moulding wants to behave as it turns the curve at the top of the windscreen pillar and seats into the alum channel. it won't go around that bend in the same way the originals did? |
Lo-Fi Version | Time is now: 6th June 2024 - 09:16 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |