Fuel leak

[fredh]

I have a 73p t337g. i have owned this a/c for 7 months or so. we had a bad rear engine and ended up overhauling it. we never had any fuel leaks since we purchased the airplane. we have about 5 hrs on the new engine and fueled it up, put it in the heated hanger,we live in michigan, under a tube type heater and the next morning it was leaking fuel. i thought it was expanding fuel under the heater so i shut the heat off, allowed the hanger to air out for 5-6hrs with the heat off turned the fuel back on an it still leaks. the leaks appear to be at or above the strainer but not just out tube. also we burned 1hr of fuel 12.5 gals out of the airplane before putting in the hanger. any ideas?