what size

[merc2546]

does ant one no the size of the allen key / hex that hold the down pipe to the size of the gear box as the pipe is in the way and i cant get to a couple bolt on the sump ?

[theonethatownz]

Try different sizes?

[Swampthing]

It is 45 or 50...
Mine are 45, - but i have seen 50's too

[Swampthing]

And btw... it is a torx....