I have considered it, but It would literally be a complete rebuild. I don't know how long the engine would last. It needs new heat exchangers. I know that the blower has locked up in the past, but was freed. And the pump is not the original, but I know it is 5 or 6 years old and the machine has been very badly abused in that time. I think it would be cheaper in the long run to find a slightly less abused machine. It is simply for a backup, so I don't want to spend a fortune trying to rebuild it.