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Old 15 April 2007, 18:33   #11
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Originally Posted by Nos4r2 View Post
That's a very good point. I'm just paranoid about sucking the crap that sits in the bottom of tanks into the carbs. God knows where some of it comes from.
Most of it comes from the petrol stations I have an old 1947 car and it takes its fuel from the very bottom of the tank and I was having problems with crap in the tank, I drained and flushed the tank and bought a water filtering bag from an outdoor shop it is just the right shape to fit over the petrol pump nozzle you would be amased at the crap it collects and no problems now.
Richard
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Old 15 April 2007, 19:18   #12
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Originally Posted by rickuk3 View Post
I will be fitting a new under deck fuel tank or tanks to the Sea Harrier and I am trying to decide on the total capacity I should go for. Sugestions appreciated on what you feel the max & min capacity for a 6.4M rib with something like a 150hp opti on the back should be?
You're going to need 50galls at the very least for distance work cos you'll definately feel better knowing you've got some reserve...and you may well need it. Two tanks are good. If they're under deck tanks they will likely be V bottomed so make sure the fuel pickup is right at the bottom and at the rear of the tank and the small amount of crap you get with each filling will not be able to build up to cause a problem. If you can arrange it, being able to shift fuel fore or aft can be useful. Also, should you be unfortunate enough to get a tank or fuel supply problem, you'll be pleased to have a second separate system.
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Old 16 April 2007, 12:52   #13
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One of the bigger factors to consider is how much space you have under deck as the tank has to fit between the stringers. If you have a shallow vee hull and stringers are close together this may limit the size of your tank so two tanks may be the way to go.

Also carefully consider weight, not just the amount but position as well. Petrol weighs 0.737 kg/litre so 200 litres adds up to nearly 150kgs, thats an extra 2 pax!

Your hull manufacturer would be the best person to seek advice from, he should know exactly how much to squeeze in and where.
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Old 17 April 2007, 17:06   #14
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Thanks

Thanks for all the replys, they have given me food for thought.
Richard
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