oil tank secret pipe

[cornishbob]

so i bought paid for and painted a a65 oil tank.

then when i came to swap it the other day , surprise surprise ir had an extra lttle hidden pipe (not really i just didnt see it)

its the 'T' pipe as in the picture. comes from/goes to the fitting on the back of the cylinder head.

needless to say the new one hasnt got it .

its just a pipe connected to the pipe as it enters the oil tank.

no problem i thought i just need a brass 'T' piece and splice it in. which i did and very neat it looks too

externally everything is connected back up as taken apart albeit with a little modification.

then i got thinking (unusual for me) are the internals the same? so thats my question is are the internals the same?