removing windscreen safely

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B-Hive
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removing windscreen safely

Post by B-Hive » Sat Apr 26, 2014 4:10 pm

Hi ya all

I need to remove a windscreen from a donor car, and was wondering if anyone has any advice on doing so...

I know that it is bonded and have heard tell that a hot knife of sorts is required....???

This is a significant cost saving alternative to a new screen so advice very much appreciated...

Fanks
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Re: removing windscreen safely

Post by citronut » Sat Apr 26, 2014 8:15 pm

i would get an independent screen fitter to try and remove it, even then it can be hit and miss getting it out in one piece

regards malcolm
curent ride
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also own
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Re: removing windscreen safely

Post by Way2go » Sun Apr 27, 2014 1:50 am

Um....surely it's not worth messing about with this when you can get a replacement windscreen on your insurance for usually no more than £75 excess? :?
All original BX windscreens have now degraded under UV light and a new replacement gives a nice crisp view of the outside world as I discovered myself last year! :D
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Re: removing windscreen safely

Post by kiwi » Sun Apr 27, 2014 3:38 am

It will be interesting to hear replies from people who have actually done this rather than negativity.

I have a donor car and have been mulling over this part. Given the windscreen is a recent replacement with no stone chips in it then probably worthwhile. Replacement screens out here in NZ around $350 to $400 (200 GBP), cost of insurance excess just gone up from $50 to $60 (30 GBP).

That aside rather than let it go to waste and the cost to dispose it sounds like one those practical alternatives.
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Re: removing windscreen safely

Post by B-Hive » Sun Apr 27, 2014 7:00 am

kiwi wrote:It will be interesting to hear replies from people who have actually done this rather than negativity.

I have a donor car and have been mulling over this part. Given the windscreen is a recent replacement with no stone chips in it then probably worthwhile. Replacement screens out here in NZ around $350 to $400 (200 GBP), cost of insurance excess just gone up from $50 to $60 (30 GBP).

That aside rather than let it go to waste and the cost to dispose it sounds like one those practical alternatives.
Cheapest I can find in Australia is $500.. :shock:

The GT only has third party insurances, so insurance isn't part of the equation.

I'm in the process of parting out the TRi so I guess its worth a try regardless of whether I destroy it in the attempt to remove it.
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87 BX TRi


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Re: removing windscreen safely

Post by really? » Sun Apr 27, 2014 7:22 am

Have actually tried this some years ago. Had a donor car with a perfect screen which I needed.

Used a very sharp knife all the way round the edge, after half an hour it was looking pretty good, loosening up nicely then on the last corner it all went pear shaped and cracked. We were left with pieces.

Thought it was worth trying as we had the spare, but the glass replacement guy who had to come round and put a new screen anyway said that removal very very rarely works and they often cannot manage themselves get them out intact but they have a much better chance than we did.

If you give it a go it will require a lot of time and patience.

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Re: removing windscreen safely

Post by citronut » Sun Apr 27, 2014 8:35 am

kiwi wrote: Given the windscreen is a recent replacement
in this case you have a better chance as the bonding ( no not 007 ) will not have cured as much/or hard as a 20 plus year old would have done,

regards malcolm
curent ride
K reg BX 17TD TZD est
also own
K reg D special

no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)

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Re: removing windscreen safely

Post by B-Hive » Sun Apr 27, 2014 8:39 am

really? wrote:Have actually tried this some years ago. Had a donor car with a perfect screen which I needed.

Used a very sharp knife all the way round the edge, after half an hour it was looking pretty good, loosening up nicely then on the last corner it all went pear shaped and cracked. We were left with pieces.

Thought it was worth trying as we had the spare, but the glass replacement guy who had to come round and put a new screen anyway said that removal very very rarely works and they often cannot manage themselves get them out intact but they have a much better chance than we did.

If you give it a go it will require a lot of time and patience.
Thanks for that...

HHmmmm.. I have actually contemplated attacking the peripheral frame/body work with an angle grinder to remove...Then once its is out and tension free then delicately and slowly remove the frame having access now to both sides of the bond. :idea: ...alternatively i could just throw a brick through it now and get it over with.... :D
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87 BX TRi


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Re: removing windscreen safely

Post by mat_fenwick » Sun Apr 27, 2014 9:31 am

I've attempted (once) with a knife, but with no success. I've seen the screen fitters do it several times with a piece of wire, fastened to a toggle each end. They make a small hole, feed a bare end of the wire through it and then attach the toggle before using that to cut the bond. They've always managed it causing no additional damage, but would imagine that on a BX it'd be more difficult to thread the wire as the screen is recessed on all 4 edges. Some cars have no recess on the bottom edge, with the joint just covered by trim.
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Re: removing windscreen safely

Post by citronut » Sun Apr 27, 2014 6:44 pm

using an angle grinder around/near the screen you will very likely splatter/spray the screen with hot metal grinder sparks,

which do/will bite right into the glass, so the brick would be the best option in that case #-o :twisted: :wink:

regards malcolm
curent ride
K reg BX 17TD TZD est
also own
K reg D special

no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)

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Re: removing windscreen safely

Post by citsncycles » Sun Apr 27, 2014 8:01 pm

I have tried this, but have never succeeded I'm afraid.
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Re: removing windscreen safely

Post by frog » Mon Apr 28, 2014 1:01 am

I took an aftermarket screen out of the TRi parts car my self and had it fitted to my black 16valve when I first purchased it.
It had a tacky rubber mounting it, unlike the standard one that goes hard; it came out fairly easily with a knife. I paid $75 AUD to have it cleaned up and fitted 2 years ago.
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Re: removing windscreen safely

Post by Defender110 » Mon Apr 28, 2014 9:04 am

You need the cheese wire tool as below but if you are doing it only once the money for the tool would be 1/3 the price of the screen in UK.

http://www.ebay.co.uk/itm/WINDSCREEN-RE ... 417f96135f
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Re: removing windscreen safely

Post by KevR » Mon Apr 28, 2014 9:46 am

My local scrappy (before they were sadly closed down by the authorities...) used to remove them with the cheesewire tool as posted above. I've tried a couple of times but not been successful. Worth a try though.
As for the improvement in view through a new screen, agreed. But then I find giving mine (an original with 200,000 miles) a thorough polish with T-Cut or similar, followed by an application of Rainex, has a similar effect - like looking through a new screen.
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Re: removing windscreen safely

Post by B-Hive » Mon Apr 28, 2014 6:19 pm

KevR wrote:My local scrappy (before they were sadly closed down by the authorities...) used to remove them with the cheesewire tool as posted above. I've tried a couple of times but not been successful. Worth a try though.
As for the improvement in view through a new screen, agreed. But then I find giving mine (an original with 200,000 miles) a thorough polish with T-Cut or similar, followed by an application of Rainex, has a similar effect - like looking through a new screen.
I'm afraid that a 40cm crack wont polish out.. :? :?

if I was to move on the GT, a $500 windscreen would almost certainly be the "show stopper" for its new carer to get it re registered.. So hence the incentive to source a cheap alternative ready to drop in..
Current
85 BX GT Mk1..
86 BX TRS Mk1
87 BX TRi


Gone
85 BX TRS mk1 auto... SOLD
90 BX TRi..parts....cubed