Please help!! I am building a Trumpeter 1/16 T-34 and have added all of the missing engine detail. But I am stuck. Various pictures of the firewall show a pump and handle right in front of the engine where the handle protrudes through the top right hand side of the large upper most panel in the firewall. A large pipe extends from the pump going both up and down. I don't know where this pipe connects to in both of its directions. All attempts to find pictures have failed, and the pipes are always obscured from view. Also the Tanxheaven site is no longer available.