check your Winshield seal

William930t · 10-01-2006, 05:00 PM

Walking the rows of beautiful Porsches at the PCA corral at the Petit Le Mans, I noticed a common characteristic of most 74-89 911/930s there. The upper corners of the winshield seal is not covering the glass recess thoroughly. A small gap is visible and looks to be an invitation for water intrusion. My 87 930 has this problem as well. I have read threads about replacement with OEM seals only, and the troubles getting correct repositioning.
It may be time for me to begin this tricky task...

Go out and look closely at your seal, what do you find?

Eric-325I · 10-01-2006, 05:04 PM

Quote:

Originally posted by William930t
Go out and look closely at your seal, what do you find?

Exactly what you describe, on the driver's side. It's on my winter project list

Eric

Kraftwerk · 10-01-2006, 07:15 PM

If it is raining, I find a leak!

ned903 · 10-01-2006, 07:43 PM

I was cleaning my '87 this evening and noticed the samething. There is no evidence that my windshield has ever been out of the car.

ianc · 10-01-2006, 08:15 PM

Rubber shrinks and cracks with age. Even Porsche rubber,

ianc

minoclan · 10-02-2006, 01:07 AM

I caught mine after a DE two weeks ago. The seal is backordered from Porsche. I think I should have it this week.

Tim Hancock · 10-02-2006, 03:50 AM

Mine is the same even though I spent a lot of time trying to avoid it while installing my new seal. I found I could squeeze in a piece of old foam rubber trim into the gap then massage it around enough to keep the lip held up to eliminate the visual gap. Best to probably inject some sealant in there also to actually seal it up better if the car is to sit out in the weather much. I think this problem varies from car to car.

Formerly Steve Wilkinson · 10-02-2006, 03:56 AM

I inject 3M Window Weld, using one of those coarse plastic glue syringes you can get at a hardware store.

911 Rod · 911 Rod's Garage

Quote:

Originally posted by ianc
Porsche rubber,

ianc

It's true.
Put a Porsche logo on anything and we'll buy it.

Ken911 · 10-02-2006, 06:00 AM

my 85 is that way and the bottom corner is real bad inside and out you can see daylight. started getting wind moises about a month ago looked around and found the gap.

Ken911 · 10-02-2006, 06:00 AM

my 85 is that way and the bottom corner is real bad inside and out you can see daylight. started getting wind noises about a month ago looked around and found the gap.

sfoster13 · 10-02-2006, 10:15 AM

I replaced mine and still have a problem

William930t · 10-02-2006, 02:02 PM

From the responses so far, I gather that a new seal still might show corner gaps. Make sure you get an OEM German seal! I also read other posts that it is not a good idea to inject sealants in the channel.

Adam Reed · 10-02-2006, 04:42 PM

My '66 is stripped down now for paint. As soon as it gets out of the booth, it gets a new headliner, then to the glass shop. The glass guy is very experienced, and insists that he will use sealant when the new (OEM) gasket goes in. The front is covered under my insurance--new gasket with new windshield--and I'm happily paying him $60 to reinstall and seal up the rear window at the same time. The shop guarantees that the windows will not leak for the life of the car! I haven't told him I've owned this car for 34 years and plan to drive it for another 34! May be an expensive guarantee for him...

Adam912.out.

Hawkney911 · 10-02-2006, 06:32 PM

you can push it out with your pinky on the list of things to do. right now shes not alowed in the rain.

Svensson911T · 10-03-2006, 03:45 AM

Is it hard to replace the seal??

Install425 · 10-03-2006, 04:40 AM

I had the windsheild replaced with factory seal and I have same problem on drivers side upper corner.It leaks down onto kick panel.

RetroSC · 10-03-2006, 06:37 AM

Same OEM factory seal here on my 67 with the same problems. I installed this one last spring and spent considerable time getting it perfectly centered and still have about a 1-2mm gap on both upper corner's.. very frustrating!!

vizail · 10-03-2006, 07:38 AM

The seal in not the problem . In a long conversation a fellow mechanic explained that with the years the press that makes that part produced a diffect . In other words ..the mold wore off and increased the zise of the frame.
In warm weather the seal and the frame expands. but with the change of weather it shrinks.
The side that holds the glas start falling towards the interior of the car and the part of the the seal that holds to the metal start to separate.
You can fix it with a new seal "but" use a 3mm sealer glue generously when instaling

Vic

pmajka · 10-03-2006, 03:44 PM

same thing, but no leak