RichieRoo

Hi chaps

I'm really struggling with fitting my windscreen.
Can anyone that's done this job give me some extra pointers.



I've read plenty of posts on the subject and the official Porsche guidelines which
say fit the rubber to the glass, put the rope in the groove (ensuring that the
rope crosses at the top).

As you can see from the pictures, that's what I've done. I'm using genuine
Porsche glass (second hand, but no chips or scratches). I get the seal wet
with soapy water and lay the screen into place and gently massage the seal
into the frame.

Once that's done I start at the top and pull the rope whilst someone pushes
the glass/seal from the outside and all goes well. The rubber lip drops nicely
over the metal seam.

However, each time I get so far either the whole lot slips down (because I'm
working from the top the base isn't yet fixed) or the glass and seal refuse to
enter the frame enough and the rubber lip hops back to the wrong side of the seam.

I'm on my ninth go. I've tried starting at the bottom too and although the base
all seats properly, I can't get the top in.

Cheers for your help.

fuch

I can talk you over it on the phone if you want?

are you sure thats a 964 screen not a 930 screen as I cant see the black band in the pic on the bottom of the screen.

964russ

Loop the rope on top and bottom.
Get it started bit at a time, bottom edge (a few inches) then opp at the top.
Keeps the glass central on the aperture.

pncarrerars

Is it a Porsche or non Porsche seal? My non Porsche seal would not go in whatever I did. In the end I reused my original seal which fitted with no problem.

creaturecat

i concur, the non-porsche seals are garbage.
you have to be careful, they disguise the sub standards in packaging meant to deceive.

PaulW_964

Are you sure that's a 964 Richie???

Sorry mate wise cracks don't really help you much do they! Good luck, I can't wait to see the car in the flesh, it's been a while.

stevepaa

I tried it several times, gave up and called in the local installer who has done Porsches before.

He did it the first time, some of it is by feel, and then slapping the window with hand to get it all in.

I had previously done the rear. Rear was easy. Front was not.

RichieRoo

Thanks for all your feedback guys. I took 'fuch' up on his kind
offer to talk me through the process on the phone, which was
very helpful. Doing the loops, which enables you to start the
seal in several places definitely helps (as '964russ' mention
as well).

Using all their techniques gets me really,really close... but the
last bit never quite goes.

I bought the seal ages ago and now I'm suspecting that it's not
original. I'll have to dig out the paperwork. I do have the old one,
but it's knackered, so I guess my next step will be to purchase
another one directly from Porsche.

PaulW – don't hold your breath, there's a long way to go.

Thanks again for all your help. I'll do a full write-up when
I finally succeed.

RichieRoo

Hello chaps

I return from the garage VICTORIOUS!

The screen is in. Thanks to those that shared their experience with shoddy
non-Porsche windscreen seals. I ordered a genuine one from Porsche
(Part number 964 541 225 00). What a difference. It fitted straight away,
without a struggle.

Looking at the two seals, it really is hard to distinguish the two. The Porsche
one is softer and has a more matte finish, the non-Porsche one is shiny rubber
and feels more plasticy.

I've done a little diagram of the method 'fuch' and others mention in case
it's useful for anyone else.

So, to summarise, the method I used was:

1) Get your genuine Porsche rubber seal pushed onto the glass, making sure
the seals join line is directly in the middle of the bottom of the screen.
The last corner is a little bit of a stretch.

2) Insert a cord into the rubber lip that runs right the way around the outside
of the seal. Making loops as per the diagram helps because you can start in
more than one place, which helps keep the glass centred in the aperture.

3) Lay your prepared windshield and seal carefully into the aperture, ensuring
all of the protruding cord ends up on the inside of the car. Gently push the
rubber into the frame all the way round. Some people suggest using soapy
water to lubricate the seal.

4) Begin at one side. Press the screen into place whilst pulling out the cord
on the inside of the car. Encourage the rubber lip to curl around the metal frame
lip by squeezing it on. Then do the opposite side. This ensures the screen is
nice and central.

5) Continue all the way round. I followed the order in the diagram which
worked well.



6) I found the corners wanted to roll into the frame aperture so I massaged
the seals outward in those areas (effectively pushing the seal off the glass and
more onto the metal frame), which seemed to help.

Thanks again for everyones help.

PaulW_964

Well done Richie and nice diagram

FeralComprehension

Nice diagram. Did you use any sealant? I was under the impression it was required for our glass...

CBR786

you can buy a butyl strip style sealant that comes on a roll double sided sticky stuff. This stuff is used to bond rear light clusters on the older nissan cars and some car manufactures use it to seal the water shedder in the interior door membranes. this stuff never goes hard and remains sticky. I deal for windscreens as you can probably use a mild heat gun to help remove the screen if ever the need arises.
comes in a bead like strip. I wonder if any one else has used this stuff rather then the traditional screen bond stuff that needs cutting out with a blade.

RichieRoo

I haven't applied any sealant yet just in case I have to remove the screen again before the project's finished (haven't tested it to see if it's watertight yet either). Eventually I do intend to squirt some sealant into the lower corners to try to prevent the usual ingress of water.

The butyl strip sounds like handy stuff, I might order some for other areas of the car.

CBR786

I use eBay butyl strip to seal front wings fenders to the car door water shedders and going to use on rubber around screen seal. It's good stuff not sure how hard it is to remove but I assume it will clean up with thinners

fuch

Here you go & stays soft after years!