Look pretty good to me!Thanks for the sound advice gents, tested for continuity and earth faults as best as I can with my old AVO but cant find any obvious electrical faults other than a wonky on off switch (bent contacts).
here are some pics of the interior not a pretty sight:
ive a friend with a thousand gallons of it ,,, hes using it as fuel for the workshop heater at the moment.After following the advice of the good people here I tried it dry and ill be blowed it works fine, tested on all ranges and seems to weld good on them all.
I did also email Youngs and Mr Young replied saying pretty much the same thing as you guys just try it as an air cooled unit and if it works than worry about the missing oil.
I did have to do some work before trying it with a stick, the 50v terminal was melted/burned it looks like it might have been used with the cable loose and the terminal post had been badly butchered in a crude repair attempt so I did have to make a new 7/16" whitworth stud for it, not too bad though about half an hour on the lathe with a bit of scrap brass rod.
Also stripped and remade all the HV and LV connections and cleaned up all the internal contacts.
Now comes the big problem trying to find 10 gallons of Mineral Transformer Oil for a sensible price, cheapest I have come across so far is recycled stuff from Eden Oils for a whopping £126 delivered
Does anyone have a cheaper source for Transformer oil? or perhaps someone has a 10 gallon drum of it at the back of their shed taking up space....
Paul