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Author Topic: Ultrasonic Leak Detection  (Read 2687 times)
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Angle Grinder
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WWW
« on: 19 April, 2011, 02:53:49 PM »

I've got 2 infuriating water leaks in my Thema. I've had the front screen removed (and broken thanks to RAC Windscreen for that) and then replaced with a screen surround from a SAAB 9000 (nice tidy fit actually).

The leaks are still there. One at the front and one at the back.

I've read about this Ultrasonic device for finding where water leaks are located around windscreens https://www.equalizerfusion.com/ProductDetails.aspx?QString=Rnv7jzlYfxksHTu1OyyAQJFFryslVB995SUgr6zWNk4=, but I can't find a windscreen replacement company that has said technology.

Does anyone know of such a company? Preferably near Scotland!
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Current Cars: 1994 2.0 VIS Thema Station Wagon, 1967 Flavia 1.8 PF Coupe.

Previous cars:
1983 Prisma 1600
1991 Thema 16v i.e. SE
1988 Thema 8v Turbo
1992 Thema 16v i.e.
1983 Gamma Coupe (manual)
1993 Thema VIS
1994 Thema VIS LE
1990 Thema 2.8
thecolonel
Guest
« Reply #1 on: 19 April, 2011, 04:43:34 PM »

Not heard of that system, to be honest most
chaps, I've worked with, just use a hosepipe
an airline and fairy liquid.
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ben
Lapsed
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Posts: 456


« Reply #2 on: 19 April, 2011, 04:53:55 PM »

Are you sure it is the screen? Does the car have a sun-roof? I recently had problems with an Audi which I only solved by sealing around the sun-roof and removing the electrical supply relay to make sure I did not forget and try to open it. The water made its way down into the foam under the carpet without any evidence of wetting anything on the way.Once in there it was impossible to dry out without removing the whole carpet! Blocked drain holes are often the root of the problem including those from the collection area foreward of the bulkhead under the bonnet.
Regarding your actual enquiry the ultra-sonic gadget looks a bit gimmicky to me. I would be very surprised if it told you anything conclusive.
Sorry to be such a pessimist. Hope you also are enjoying the sunny spell we are having down south.

                         Ben
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fay66
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« Reply #3 on: 19 April, 2011, 08:30:52 PM »

When I worked for Vauxhall we used a flourescent dye that showed up under ultraviolet light so you could trace the leak all the way back to the source.
also not unknown for Thema and Dedra drain tubes to come off the spigot.

Brian
8227 Cool.
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
2006 Renault Megane 1 5 Dci Sports Tourer
Dedra Technical Adviser
Angle Grinder
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Posts: 426



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« Reply #4 on: 21 April, 2011, 09:20:09 PM »

Nope, I ain't got a sunroof, but I've been there with blocked drain channels on my previous sunroof equipped Thema.

Thru another forum, I found a garage in Fife (not that convenient for me) that has the Ultrasonic equipment and the guy says it is actually very effective, but is a rather time consuming process. His only problem is that he doesn't do windscreens but he could identify the source of the leak.

I may have found source of problem in rear screen area. Time will tell.
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Current Cars: 1994 2.0 VIS Thema Station Wagon, 1967 Flavia 1.8 PF Coupe.

Previous cars:
1983 Prisma 1600
1991 Thema 16v i.e. SE
1988 Thema 8v Turbo
1992 Thema 16v i.e.
1983 Gamma Coupe (manual)
1993 Thema VIS
1994 Thema VIS LE
1990 Thema 2.8
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