Hi Jarrod,Welcome to ODK.
It must be Turner week lols.
There is very limited info on Turner mowers.
Recently the forum Historian,CyberJack" has been researching Turner History and a few site members have acquired various models and slowly comparing the models dates and variations.
I know a little of the Vulcan,but if you wouldnt mind we really need images of your machine in order to research the archives for the model history accurately.
The use of Villiers engines on the Turner was very common,particularly the Torque Major And earlier the lauson and Kirby/ lauson.
Earlier versions are model and date coded so check your base for markings(usually the rear of base).
As for parts,they are hard to come by for the mower itself. Engine parts less so. A member may have some parts you require.
So throw up some images and we may be able to shed some light of your machine.
Try this link in the meantime and see if its similar or an earlier model.
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=58963#Post58963