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Location:
Castle Hill
Registered:
August 2003
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How to modify petrol tank?
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Thu, 14 April 2005 12:28
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Have spent the last few days reading info about GE conversions, and the place I have decided to start is with the fuel system before I install the engine,
One of the websites said if using an internal fuel pump (which is what I plan to do -AE82 pump-) the best method he has seen to install it in a tank with no pump or baffles is to cut the bottom out of the donor tank, and cut out the section the fuel pump and baffle are attatched to and then cut out a section of recipient tank and weld pump with baffle in there.
This is all good and well, but for starters I don't know how to weld, and if I can get a mate to do it for me, I have a few questions, does anyone reckon they can help me out by answering them, either from experience or just general knowledge?
How do I make sure there is no fuel/fumes left in the tank so it wont blow up when cutting/welding
How do I know where to mount the fuel pump/baffle
Is it really that simple, just cutting and welding, running lines and electricals?
I realise external may be easier, but I really want to go with intank for cheap reasons, and so I dont have a pump attatched under my car.
Does anyone know where I can take the tank to get all this done if any of my friends don't want to help me out?
Thanks heaps in advance to anyone who can help me out with this issue!
Cheers.
-Whitchy-
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Location:
Gympie Qld
Registered:
December 2004
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Re: How to modify petrol tank?
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Thu, 14 April 2005 12:38
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Be a brave man to do the welding.
There are many thoughts on achieving this and I don't know anyone who has a 100% guaranteed fix.
1. Run exhaust fumes through the tank for a good while or even while welding (if possible). Can;t imagine it would then be easy to weld.
2. Fill with water but if you still get air pockets watch out.
3. They run a gas through it but can't remember which. CO2 from memory.
I'd ring around and see who you can find but not many like doing it. Given it's a small area though you may have some luck.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: How to modify petrol tank?
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Thu, 14 April 2005 12:41
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| WHITCHY wrote on Thu, 14 April 2005 22:28 |
How do I make sure there is no fuel/fumes left in the tank so it wont blow up when cutting/welding
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wash the tank with warm sopay water.. then to be sure, fill the tank with water (a little below the level of the welding) to reduce the airspace.... no air = no explosion
| WHITCHY wrote on Thu, 14 April 2005 22:28 |
How do I know where to mount the fuel pump/baffle
Is it really that simple, just cutting and welding, running lines and electricals?
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you may not need baffle... or can fit a small can baffle around the pump itself.
i used the ring off an AE86 tank, welded it to a KE20 tank, and then made my own pump hanger bracket.
easiest way is to get a hanger assembly from an EFI car, change the bracket length, and install in your tank....
CYa, Stewart
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Location:
Menai area of Sydney
Registered:
June 2003
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Re: How to modify petrol tank?
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Thu, 14 April 2005 12:47
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What sort of car are you doing this to ?
I have an AE92 hatch EFI tank for sale.
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Location:
Castle Hill
Registered:
August 2003
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Re: How to modify petrol tank?
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Thu, 14 April 2005 13:17
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going into an AE86,
but I am completely clueless as how to mount the fuel pump at the moment???
If I can't get it all sorted out then I will just suck it up, fork out the dosh and get and external pump and all that crap that goes with it, I am just hoping that I will be able to do it the hard but cheap way?
Cheers for the info so far!
-Whitchy-
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