Paul Y
Posted a lot
Posts: 1,948
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Sept 21, 2020 19:13:16 GMT
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Right. Got myself in a right pickle over the very simple size required for the metal strap required to hold up a 15 gallon fuel tank. So. What would you recommend before I completely over engineer this. Thanks. P.  |
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Sept 21, 2020 19:20:43 GMT
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2mm thick, 25mm wide sounds about right to me.
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1988 Mercedes w124 superturbo diesel 508hp
1996 Mercedes s124 e300 diesel wagon
1990 BMW E30 V8 M60 powered!
1999 BMW E46 323ci project car
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Paul Y
Posted a lot
Posts: 1,948
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Sept 21, 2020 21:11:15 GMT
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Thanks! I have spent 2 hours in the shed over thinking this. Was working out how heavy the fuel was blah blah blah.... no wonder it takes me so long to finish anything! P. |
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Dez
Club Retro Rides Member
And I won't sit down. And I won't shut up. And most of all I will not grow up.
Posts: 11,712
Club RR Member Number: 34
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Sept 21, 2020 21:18:22 GMT
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That would be way overkill tbh. Most 50s fords are more like 1mm thick and 20mm wide.
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Sept 21, 2020 22:29:39 GMT
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That would be way overkill tbh. Most 50s fords are more like 1mm thick and 20mm wide. That's about the same as Capri ones. But it's not like 2mm thick steel straps are hard to form. |
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Sept 22, 2020 8:34:12 GMT
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It will depend what standard you want to engineer it to, a 15 gallon fuel tank weighs around 50kg, If you just want it to stay in the car during normal driving then it needs to be capable of withstanding around 3g ie 150kg so the straps of the 50's will be fine.
Modern cars also have to meet crash standards so there you can be talking easily about 30g so a equivalent mass of 1500kg, hence why a modern strap could be something like 40mm wide and 2mm thick. (take a look under a Transit)
The best bet is probably to copy something similar and think about reinforcing the ends around the attachment areas or any sharp corners as this is where the highest stress is. I'll try to measure the TR7 ones for you later.
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Paul Y
Posted a lot
Posts: 1,948
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Sept 22, 2020 10:51:56 GMT
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I have built a frame work from angle iron around the perimeter of the tank to hold it in place and then will use the straps to hold the weight. I need to be able to drop it down to gain access to the fuel pump so have hinged it a the back so that undoing the straps allows it to swing down to gain access to the fuel lines before sliding it out without removing the bumper, tow bar etc. You could probably lift the whole truck up on what I originally put together so appreciate the input - as the tank is out of a Jeep, and has recess for the straps, will use that as the guide for the width and then go with 2mm as that is what my local steel supplier has in stock. Thanks again. P. |
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