 | Home > Technical > Flatdog 110 Rax - Can’t fix it to gutter. Thoughts? |
 
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| Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5836   
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Evening all. As per the subject, recently bought a second hand Flatdog Rax for a 110, but cannot for the life of me get the clamps to fix to the gutter. Not the legs, but the clamps which keep angling in and/or slipping off. Had to drive back from the UK with the rack ratcheted to the roof.
Am I missing something? A piece? A technique? Nothing I do will get them to stay in place. Long term, not a problem as it will be fixed to a roll cage, but short term, next few weeks (including a trip to Mallorca), I’d like the rack to be used. Any thoughts? Can anyone who has one take a photo of the legs and clamps so that I can see I have all the necessary parts? Ta….  Monsieur Le Grenadier
I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
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5th Apr 2022 4:32pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410 
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Not sure it helps but - https://www.flatdoguk.com/asps/resources/pdfs/969-1.pdf
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5th Apr 2022 4:37pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Actually those clamps look like a similar design to the Hannibal style clamps of old, with a square rod, triangular gutter mount and threaded bar. These had the tendency to slip outwards as well.
One of the accepted methods of preventing this was to put a bend in the at the point the gutter portion attaches to the square bar, so it angles upwards towards the base of the gutter. When the clamp is tightened it pulls the clamp up rather than out. The other thing is to make sure the racks feet are situated close to the roof and not towards the outer edge of the gutter, this also makes sure the clamp has as much of the gutter width to contact with. |
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5th Apr 2022 4:56pm |
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| camelman Member Since: 27 Feb 2013 Location: Peak District Posts: 3373
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Here's mine
 Click image to enlarge |
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5th Apr 2022 5:24pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5730 
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I slightly bent every clamp leg, exactly the same as I did when I had a Frontrunner rack.
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6th Apr 2022 3:20pm |
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| MichaelE Member Since: 18 Jan 2020 Location: Crawley West Sussex Posts: 155 
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Use the grub screw to force the clamp to stay under the gutter. You can tighten it quite a bit and the main bolt will still pull the clamp up and tight.
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6th Apr 2022 10:54pm |
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| Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5836
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Thanks all. Yup, with your photos and the FD instructions, it seems I’m missing the grub screws. Problem is that the thread has either worn out or been drilled out as the hole has a larger diameter than the 8mm suggested by FD and less than 10mm, so I cannot (yet) merely replace the screws. So I’ve put two 10mm HD cable ties on each leg in lieu of the grub screw and it works a treat, all locked in place. Fortunately Safety Devices have a low profile mount I’ll use which forgo the need for legs. So it’s only a temporary measure. Thanks again.
Monsieur Le Grenadier
I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
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7th Apr 2022 5:33am |
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| Shroppy Member Since: 25 Feb 2016 Location: Shropshire Posts: 866 
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I am fairly sure that the grub screw threads into (and through) an M8 nut which is held in a slot in the foot. Is it possible that the grub screws and nuts were removed?
EDIT - You can just about see the slot I'm referring to in Camelman's photo above. The M8 nut is also shown in the PDF, red arrow showing the slot: Click image to enlarge 1985 127 V8 Build Thread Series 2 109" Series 1 80" |
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7th Apr 2022 3:13pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5730
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You are correct. The grub screw goes into a nut that slides inside the leg.
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8th Apr 2022 4:43am |
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