were they secondhand, they could have allready leaked.
i will need to know a few things to be 100% sure of the problem mate
your tora forks do they have a polished chrome finish on the legs or is it anodized alloy
if steel then its very likely the above problem, you can check this by taking the circlip off the damper lever and use a 24mm socket to remove the compression damper check the oil levels in there
the oil should come into contact with the compresion damper just before you screw it back in.
if its the alloy version you can check the same, if its empty try filling it back up to the correct oil level, then if it leaks again you will need a new seal head on the fork leg ( this part is not replaceble on the steel fork )
all of this is the most common faults on this fork. if it is not either of these you have a blown rebound damper and a new one will be around £50