TimC
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| posted on 26/5/08 at 06:55 AM |
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PU Bead Under Fuel tank?
Mornin' All
My tank is curently sat on foam strip. This has 'sunk' to the extent that the tank, which was once secure, now moves around if you push
it hard. I can tighten the straps but I've been wondering if I'd be better of ditching the foam and using a bead of PU sealant.
What do you think?
TIA.
TC
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eznfrank
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| posted on 26/5/08 at 07:20 AM |
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I was down at MK a few weeks ago and bought a tank and instead of offering me fixing straps they told me to use Sikaflex and just stick it down.
Apparently they do all theirs like that now.
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TimC
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| posted on 26/5/08 at 07:28 AM |
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quote:
Originally posted by eznfrank
I was down at MK a few weeks ago and bought a tank and instead of offering me fixing straps they told me to use Sikaflex and just stick it down.
Apparently they do all theirs like that now.
So they put the tank on when the bead is wet? Interesting. Is this the right way to go folks?
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worX
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| posted on 26/5/08 at 08:02 AM |
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There is a potential for quite a weight shift to "slosh" around in a fuel tank and even though I know sikaflex would probably hold it
securely I would feel happier having a secondary strap of some sort whether it be a fixed Ali one or even a buckle down one in some way...
You could easily do two strips of Pu down the length of your lower straps Tim and let it virtually go off and then lay the tank on for it to just
level off and seat well.
Steve
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TimC
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| posted on 26/5/08 at 08:33 AM |
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Yes - I am of course going to still use the upper straps as well. I think that's what I'll do. Now where's that link for CBS?
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turbodisplay
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| posted on 26/5/08 at 09:05 AM |
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I used the rubber from a conveyor belt.
Cut into strips 2" wide for the straps, stuck on steel strips with impact adhesive, and clamped top and bottom together.
Darren
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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BenB
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| posted on 26/5/08 at 12:53 PM |
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I'd put the foam strip under the straps (ie at the top). If you put it under the tank it will get crushed as it'll be taking the tank
weight. Put it under the straps and it will only be helping keep the tank in situ. That's what I've done and no crushing yet....
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Mix
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| posted on 26/5/08 at 03:41 PM |
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Hi
If you use PU to bed your fuel tank, (a method I would condone), be carefull that you don't allow any metal to metal contact which could result
in fretting or corrosion. If I were doing this I would put down one layer of PU, allow it to set and then bed the tank on a second layer.
Regards Mick
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Mark Allanson
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| posted on 26/5/08 at 03:57 PM |
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quote:
Originally posted by Mix
Hi
If you use PU to bed your fuel tank, (a method I would condone), be carefull that you don't allow any metal to metal contact which could result
in fretting or corrosion. If I were doing this I would put down one layer of PU, allow it to set and then bed the tank on a second layer.
Regards Mick
PU needs a certain thickness to work, I was going to suggest using windscreen spacers (small blocks of rubber) to maintain the distance and to isolate
the tank
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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Fred W B
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| posted on 26/5/08 at 05:45 PM |
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quote:
use Sikaflex and just stick it down.
Sounds like a bodge to me. It may hold the tank in normal use but in a high G force accident will it hold the tank securely? In that situation you
already have enough problems without the tank flying out of the car.
Why bugger around with messy non removable stuff when a plain strip of rubber will work well?
Cheers
Fred W B
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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wilkingj
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| posted on 29/5/08 at 12:26 PM |
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quote:
Originally posted by Fred W B
quote:
use Sikaflex and just stick it down.
Sounds like a bodge to me. It may hold the tank in normal use but in a high G force accident will it hold the tank securely? In that situation you
already have enough problems without the tank flying out of the car.
Why bugger around with messy non removable stuff when a plain strip of rubber will work well?
Cheers
Fred W B
Hmmm I couldnt agree more. Just consider the safety angle of 5 Gallons of Petrol coming adrift in an accident. Then the tank gets punctured, or the
pipe pulls off the tank and sprays the fuel all over the place.....
One Spark, and its gone from Bad to DEADLY serious in a flash.
Its not worth the risk.
I put some rubber similar to conveyor belt, and used a pair of straps, and sat more rubber under those parts where it was on the tank.
I put the rubber in purely to prevent chafing, and the eventual puncturing of the tank.
C'mon you know it makes sense, and also has a minimal effect on the weight of the vehicle.
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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