fuel tank cap., anything inside displacing volume?

[recordsj]

1974 MG Miget. I took measurements of my fuel tank to calculate its capacity. Of course with older cars there can be mixing and matching of different components (i.e in the '74 midget, I have from a previous owner a 1500 engine from a 75-80 midget and a OD from a spitfire). Is there anything inside the tank that can be displacing volume to know if my measurements of the outside of the tank are actually accurate?

 

[smaceng]

Best way.....fill it all the way up, drain it out into a bucket...no smoking or sparks now....measure the gasoline in the bucket.
To answer your question, nothing really inside.
Scott in CA

 

[leecreek]

If the fill pipe extends way down into the tank, it will limit the volume of gas that can be put in a Bugeye's tank for sure. I had to modify the replacement one here to get full volume.

 

[recordsj]

the fill tube doesn't extend into the tank.