I have started to change my weatherstrips. I have put new ones on the roof then just put new one on the targa/B-pillar just to check without a glue.
First, obvious issue was to install back targa roof. I need to use some force to put it down and screw it finally one by one. This is fine.
Bigger problem I have with windows, I can not close windows or close doors with windows up as B-pillar rubber force windows outside. I can adjust them and check if it can run outside but then it will be problem to reach up position in roof's *****.
Did I installed it correctly ?
Wheatherstrips are from Metro and car is C4 85'

First pick with old weatherstrip in (it looks more compress, closer to the interior):

New seal + window up + targa:

It is visible that new weatherstrip push windows outside:


Is it this gap not too big ? It is ca 12mm/0.5inch) between plastic on B pillar and rubber's edge:

 

I see that no one responded, but I wanted to throw in my two cents here...

Oddly enough, my neighbor and I bought C4 Corvettes a week apart, without ever even discussing it... just happened. Both were red C4s. I got an 84 that was kind of a turd, and he bought a near pristine 1994. Long and short, I'm all about buying a car for an average price, and then spending 10 times what the car is worth in parts, just to bring it up to the price of a car I should have bought in the first place. This is my MO... but the good thing is I learn lots of lessons on working on different cars, so it's part of the fun.

Never the less... I bought a COMPLETE 84 weatherstrip set from @RPIDON ... he had a good sale going on, so I got a complete carpet set and a weatherstrip set (X2284 from RPI, link on the right... RPI Performance).

The only thing that was less than great on my neighbor's 94, was the weather stripping. He bought a complete kit from somewhere else (I can't remember where) and spent nearly the same amount I did. None of his seals fit properly... he had the exact same problems you did. He could barely close his doors, he could barely put the targa hatch back on, and he couldn't close the rear hatch. The seals were huge.

Granted... there's SOME change from 84-94... so, for example... he couldn't use my door seals, but I gave him my targa seals, and the rear hatch seals, and they fit absolutely AMAZING. He took the old ones off that he had just bought and returned them. He then bought a replacement set for me from RPI.


I've also had this issue with door seals in other cars that I've owned too. Door seals are a really particular thing. If they aren't made really well, they just don't seal properly. What you're experiencing is not normal, and no amount of time for the seals to settle or "get better" will solve that problem. They should fit from day one after installing them. Take it from me... I bought a set of brand new door seals for my 1973 Volkswagen Bus and was told it takes time for them to properly shrink. The car has been sitting in storage for almost 14 years in an undisclosed Storage Unit, and every time I visit the car, the doors are still incredibly hard to close.

Take it off and return them... this shouldn't be happening.

 

Thanks for your advise.
I think you are right, seals should be plug and play, just after installation. This can be valid if we are first owner and car has few, maybe 10 years. In 40+ car, where I dont know what was in the past, it is lottery. I dont know which seals was before, it was OEM or not. Maybe somebody did window adjustment to be inline with old, flat weatherstrips.

Similar story I had during my Mustang 67 rebuild, but again most of body parts was changed. Seals was ok, but I have convertible so adjust window - door - roof it is nightmare, and I can not tolerate water leaks or wind inside. So did many times, unless i got result. Same issue here with Targa. I put new B-pillar seals, so roof is higher then it was due to new rubber. Window alignment can be diff as well.
I can not return it as I bought it half a year ago. Now I do not want to spend few weeks sending back, paying customs and ordering new one. Those had good opinions. It were cheaper then Corvette Rubber, but much more expensive then ebay stuff. This is exactly what I bought:
https://www.rpidesigns.com/shop/sear...=RKB+2000-106+
Metro RKB 2000-106

I did not know that 96 has diff sets, but it looks that my set is universal 1985-1996, while Corvette Rubber has diff sets (1984-89 and 90-96).

Anyway Today I tried with window adjustment and it looks that somebody did it before me. I have 85' so should have window mechanism with this white strip, while I dont have such one. It looks that somebody changed to newer. Also everything looks ok, with quite fresh grease. In/out adjustment was set max to in, so it can suggest that somebody change window angle to put more press on seal. I tried to adjust it out, but when I move it, bottom hook do not catch window regulator in max position. I moved whole regulator in and then I was able to set hook in more out position. I can close door now but it is not so east (previously I can not do it at all).
Also I added A-pillar seal, targa roof is ok, but I need to play with window alligment again, as due to seal, now front part of the window is pushing out. Maybe this will be better when I glue it and screw it.
Anyway I need more out adjustment to be inline with B-pillar seal. Maybe I can not put more out as I installed new window scrapers which press window in.

As you can see it is still not parallel to the seal:

 

The weatherstrip does look too big and too hard as it does not compress, I used CRC brand and had great fit with the A pillar B pillar and targa sides. The CRC is the closest to shape of original, although not as soft as latex its more durable. Only the CRC door weatherstrips needed modification , to make closing the doors easier. however the other weatherstrips fitted perfectly and keeps the car dry and quiet.
You should be able to close the door to first click of latch and glass just touch the weatherstrips, then the final click of latch to fully closed should only depress the weatherstrip a little evenly.

The door weatherstrip problems are at the ends, they were not shaped as well as the factory weatherstrips and that is where the problem is with having to slam the doors. I did trim the door weatherstrips to the shape and thickness of the original, you have to also pay attention to the cutouts in the weatherstrip that fits onto the door. Once I made them fit correctly the doors were easy to close, however it is an involved trail and error process to get the door weatherstrip to fit right .... This should have been done by the manufacturer ..... I have tried many weatherstrips over the last 20 years the latex ones fit best but only last a few years, the CRC are the best fit apart from the main door weatherstrip I hope I just got a bad batch however have heard many have issues with the door weatherstrips needing to slam the door ..... 🙄
However the other weatherstrips from CRC fitted perfectly and doors close easily.

 

Here are pics of the CRC weatherstrip fitment for reference

 

Note the pic from inside car how the weatherstrip part the window touches is below the strip the weatherstrip is pressed into. It shows proud on your weatherstrip..







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Ok, thanks for you pics. It looks that Metro seals are to wide. My window distance up to seal frame in B-pillar (without wheatherstrip) is 18mm, while seal has 30. Today I have cut from bottom about 8mm, then play with it to get proper shape. Doors close without big issue , but now I have problem with A-pillar. On the bottom it looks like it is too much rubber which press window outside. Need to cut there as well.
So if somebody will look for Metro seals ( 2000-106) I do not recommend for 1985.