thanks for the thoughts and advice guys. I think I am going to leave working this out until after W and P as I am loading it home and I can fiddle around with it to my hearts content once back here. I reckon it is the head on the pump being too much. I read the instructions again for the Facet cylinder pump and it reckons that the pump needs to be within 12 inches of the tank and as the push rather better than pull I am sure I am asking it to do the impossible. I may yet be coupling up the original spec mechanical AC! I am also wondering about the unions I made for the fuel tank tops. The pick up is a long pipe with just one hole at the bottom. Therefore if there is much in the pipe you will have problems, plus the top of this pick up is an inverted nipple. I had to make union for this by using a straight nipple and braising onto another one as it has to come out at 90 degrees to clear the tool box bracket above. All in all, its back to the drawing board, but I am sure I can fix it. Meanwhile I am off to look for that badge to sew on my jacket!
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