Well, this hasn't been much fun but it has a happy ending. Thanks to Dilalio I bought this today as luck would have it for a discounted price at my local store...
The second step up on the tool was the correct fit but it needed whacking in with a hammer to get it all the way on.
Using all my strength it started to turn slightly but then part of one of the lugs snapped. Fortunately the rest held and I managed to get the fitting off. One down and one to go.
Unfortunately on the second rad one of the lugs snapped off completely just as the thing was starting to turn, so the tool became useless. Darn. Thinking...
So I took it into the garden and on my work bench I first ground through the loose nut on opposite sides with the dremel...
... So I could get space to grip with the mole grips...
Result!... and the large white nut didn't move at all, otherwise it would have been impossible to have held a spanner on that whilst turning the mole grips and holding the radiator down with all my weight.
Don't you just love Mole Grips?
There was still a lot of rust in there even thought I thought I'd got it all out before the powercoating job (flushing and shacking and basically putting my back out), so I shook it some more and used my trusty extendable magnet. This does make you wonder if it's worth using old 60's radiators. Or in my case 'keeping them'. For me there are lots of reasons why I wanted to keep them...
Hopefully I'm done with this thread now, unless I have any questions about fitting the new stuff, which I might well do. Until then, thanks to everyone for your help.
The second step up on the tool was the correct fit but it needed whacking in with a hammer to get it all the way on.
Using all my strength it started to turn slightly but then part of one of the lugs snapped. Fortunately the rest held and I managed to get the fitting off. One down and one to go.
Unfortunately on the second rad one of the lugs snapped off completely just as the thing was starting to turn, so the tool became useless. Darn. Thinking...
So I took it into the garden and on my work bench I first ground through the loose nut on opposite sides with the dremel...
... So I could get space to grip with the mole grips...
Result!... and the large white nut didn't move at all, otherwise it would have been impossible to have held a spanner on that whilst turning the mole grips and holding the radiator down with all my weight.
Don't you just love Mole Grips?
There was still a lot of rust in there even thought I thought I'd got it all out before the powercoating job (flushing and shacking and basically putting my back out), so I shook it some more and used my trusty extendable magnet. This does make you wonder if it's worth using old 60's radiators. Or in my case 'keeping them'. For me there are lots of reasons why I wanted to keep them...
Hopefully I'm done with this thread now, unless I have any questions about fitting the new stuff, which I might well do. Until then, thanks to everyone for your help.