Hello! Been cracking on with the van in between showers . The gas tank is now bolted up under the floor.It's held up with four m10 bolts, which fit into the four lugs which are welded to the top of the tank.
First job was to dry fit the tank to find the best position.On my van it's just behind the exhaust back box.The first problem was how to Mark the four captive nuts inside the lugs.The gap was too small to be able to get a pencil in.So I used masking tape around the sides of the lugs. ( the White patches in the first picture are where the tank knocked of my freshly painted underseal ). Then I removed the tank and made a wooden template.This was then offered up between the masking tape.
I used a 20mm drill bit to give a bit of movement, just incase the holes didn't line up.the tank was then jacked back up and alined with the holes.It was quite a good fit .
On the inside of the van I have used two lengths of heavy duty flat strap.This is 30mm wide and 5mm thick. It sits nicely in the corrugations of the floor. I drilled the holes out to 10mm, and added a penny washer on top. One length of bar did two holes.Then the bolts where wound in and pulled the tank up nice and tight.
There's no movement at all, just need to test over a local speed hump.Next I need to fit the pipework into the van.