gas tank, help Options

[Howard]

Another newbie question. Just bought a 73 2.0 and took it to a local Porsche mechanic to check. All is well, but he says I need a new fuel tank, as it's full of rust. Enough to clog injectors, so mus tdo something. Porsche doesn't make them any more, but he knew of a place that 'rebuilds' them @ about $400.

Ouch! Ideas?

[jridder]

>$75 to take your tank to a radiator shop and get it boiled and coated.

Where? I called about 5 places in the San Jose area and the price ranged from $125 to $145. My tank is a little rusty but doesn't look too bad so I was just going to get it boiled and coated instead of replacing it.

How much do good used tanks go for? I assume these are probably fairly rust free but not coated. How much does the coating help anyways?

Also, I will be converting to AN fittings. I'll document they way I do it. My first plan was to modify a AN-6 adapter on my lathe so that it fits in like the original tube (after making the hole in the aluminum nut bigger). This would probably be a good way for someone that doesn't want to remove/refinish their tank.

Then I figured I would tap the tank with a 1/4-NPT tap. This should work pretty well and will give about a 0.300" opening that is close to the size of 3/8" hard line / AN-6 hose.

Now, since I have to refinish the tank anyway, I'll probably just fill it with water, then weld on a couple AN-6 or AN-8 fittings. Its been hard to find information on just what size fitting I should go with. It seems that the 3/8" hard line (and an AN-6 fitting) should work for up to about 400HP, but I assume it will handle more HP with a high pressure fuel injection pump mounted by the tank.

Jonathan