Fuel Tank
 

It would seem that the Mk2 200's use a seperate in tank fuel pump and fuel level sender, Mk3 is all in one. so I will have to look at a method to secure and seal the sender into the tank. Also I am unsure why the fuel pump is at one end of the tank. As the tank has no swirl pot and if the tank level is on the low side, then :confused: :confused: when cornering there must be a good chance the pump will not be in fuel and cavitate. Would it not be better to fit the pump in the middle of the tank. I shall also look at fitting a form of swirl pot inside the tank.

Tony

If you had the tank made (as opposed to buying it from Marlin), you could have had either a swirl pot or baffeling fitted. I think the larger tank Marlin supplies has a swirl pot (not positive).

Isn't it going to be very difficult to do anything with the tank now?

A swirl pot will end up lower than the fuel pick up if you weld it to the base of the tank. Only solution I can think of is to cut a slot into the tank either side and slide in an ally plate to make a baffel. This would need ally welding.

Personally I would leave it. If there are any problems when the car is finished, the tank is easy to get to.

As for the fuel sender. Have you had a quote from a breakers to get one from a later model?

A swirl pot is not that hard to fit in a tank. I fitted one in the robin hood 2b I built. As it is only a small box that the pump pickup sits in, with holes drilled in it . this allows fuel to fill it but restricts the flow out during fuel shifts. It can be secured to base of the tank with a single bolt, which is easy to seal. A tin can is ideal of dia. aprox of pump aperture hole size, cut down to about 60mm hight

tony gigg

I think the internal fuel pump has it's own built in swirl pot (the plastic housing) so there should be be no need for baffles etc.