Hi Angela, and a warm welcome to the OutdoorKing forum.It's great to have you aboard.

I have checked the Parts Lists and Manuals area and have found only the parts list is available for the Victa Imperial.
What you would need is a workshop service manual, which I have never seen and would be hard to come by.
The Imperial was discontinued many years ago.
However, with your help and the advice of our Victa gurus at OutdoorKing, we may be able to put it back in serviceable condition once again.
Firstly, we need to
exactly find out the model of your machine.....Can you please post some photos of your mower from different angles, and without the chain case cover attached.(on the side of the mower)
Secondly, we need to know if you have
all the parts in your possession, as parts for the Victa Imperial are now pretty thin on the ground....
We will be able to tell you more when we see the pics.
Once again Angela,

to OutdoorKing.