 | Home > Maintenance & Modifications > Help needed with a strange water leak |
 
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248   
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Need some pointers to locate a water leak in the back of my double cab - and yes, I have been through the Puma leak manual
Under the rear seats I have noisekiller and a rubber mat/cover. I am getting water under the mat etc in the area between the wheel arches - top of the mat is bone dry. What has thrown me in the past is that the rear passenger carpets have got wet and I have put the problem down to door seals. What is actually happening is the water is getting onto the area under the seats and then wicking down through the carpet into the rear footwell and soaking everything. All the panel seams seem OK and spraying with a hose does not show anything. The water ingress appears to come from road spray when it has been raining hard, hence my initial thoughts that it was the lower door seals. Any ideas on where I should investigate ? Thanks in advance Bob |
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26th Oct 2011 6:26pm |
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| Sockpuppet Member Since: 17 Sep 2011 Location: Leicester Posts: 479 
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Messy but good way of doing it is to dry the area and dust talcum powder under the carpet. Then leave and check a few weeks later. Should show quickly where it is coming in.
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26th Oct 2011 6:48pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Good idea
Won't take a couple of weeks with the weather we have had over the last couple of days 
Just off to raid SWHMBO's makeup stash
Bob |
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26th Oct 2011 6:52pm |
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| bpman Member Since: 21 May 2008 Location: Oslo Posts: 8069 
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hi Bob
couple of ideas... > check the rivets > check the join between the windows and body good luck |
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26th Oct 2011 7:21pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17339 
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Interesting! My DC does the same.
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26th Oct 2011 7:28pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Hi Steve
Rivets and window seals are fine, water only appears under the seats and under the noisekiller mat. It has to be a panel seal or could be the rear seat fixings. No signs of water coming from above the mat,. No problem when vehicle is static, only appears when driving on wet roads. Dried everything Monday, all OK going into work Tuesday and then we had the mother of all storms Tuesday afternoon and checked before driving home - all OK. By the time I had done 20 miles under the mat under the seats was soaked (not the footwell). Blackwolf It's taken me two years to get rid of the front footwell leaks, this one is not going to defeat me
I will let you know the resolution. Bob |
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26th Oct 2011 7:46pm |
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| willy eckerslike Member Since: 15 Jun 2009 Location: North yorks Posts: 1789 
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Mines the same aswell, you find it Bob then we can all fix it
Original Member Pie n Pea Club.
110 HCPU Tipper |
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26th Oct 2011 7:52pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Bit of a challenge on now
That's this weekend sorted out
Bob |
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26th Oct 2011 7:57pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Steve
Panel fit is what I think as well. Problem is spraying with water shows nothing but I am thinking that there is some flexing when driving and this allows the water in. Luckily there is virtually no trim to remove. Waxoyl was one solution I had in mind as well
Bob |
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26th Oct 2011 8:05pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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OK all double cab owners - I have found one leak but there are more
If you look under the rear window, about 6/7 inches below, you will see a hollow triangular bar running along the bulkhead. The position of the bar means that on the outside it will be below the top of the tub. Water is getting into this hollow bar, sloshing around, finding a gap and then running out, down the bulkhead and onto the floor. The water on mine ran down the join between two pieces of NK rubber hence why I could not see it. My tub has a tonneau cover and is pretty water tight so my guess is that the water is getting into this bar at the ends somehow - there is a gap between the end of the bar and the side panel. Also, I think the bar is spot welded on the inside but I suppose it could be a faulty weld. Just got to find the entry point now
Bob |
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28th Oct 2011 8:15am |
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| tatra805 Member Since: 16 Aug 2011 Location: Dolany Posts: 436  
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Remove all carpets etc, put a tarp over the top of the car or cover all window areas and once its dark outside put a 500W halogen inside the car and inspect from the outside. Can be handy if someone is moving the light around inside the car.
Should make some things visible. I had a crack in the rear wheelarch which i could not find, the water was running down slowly at the exact corner edge of the wheelarch leaving a minimal trace. Saw it once i found the crack but otherwise no chance to spot it. good luck and a lot of patience!  |
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28th Oct 2011 8:16am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Thanks tatra
I was thinking of light outside and check on the inside but your way is far better
Lucky the clocks go back this weekend, it will be dark by 6pm so I won't have to stay up all night
Bob |
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28th Oct 2011 9:24am |
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| Martyn Member Since: 10 Feb 2011 Location: Stourbridge, West Midlands Posts: 151 
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Had my DCPU for 4 months now and have been plagued with leaks and drips around the rear seats. I have to say, LR Hereford sorted it out after LR Stourbridge (shatstones) made a hash of it. I have marked up photos if anyone is interested. I gave these to Hereford so they could deal with every leaky area in turn and wouldn't miss anything as these leaks needed a good hour soaking to reproduce, not a quick spray with the hose.
I had leaking over my wheel arches from road spray, had numerous bits of silver automotive tape replaced under the seats and had a fair bit of sealant applied to the area under the channel where the back seats bolt back to the L-brackets. I think they replaced a few rivots, and also had a look at the channel which fixes down the back of the tilt to the top of the tub. 3 days work! Seems to be specific to the DCPU and the configuration where the cab meets tub. Keep having a good nosey under the seats with a torch whenever it rains and so far so good. |
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28th Oct 2011 9:09pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Martyn
PM sent
Bob |
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29th Oct 2011 7:59am |
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