[Richard Coutts-Smith]

Tony,
Richard F is spot on, check the fuel line right back to the tank inlet. Took us 12 months to find that a beetle crapace was causing the intermittent fuel problems in the Jeep: in effect we had a butterly valve in the first inch of the fuel intake. Ended up with extended bolts on the fuel pump to make it easier for removal, it was coming off so often. Finally diagnosed the problem (arrived at camp in the mountains at 2.00am perched on the mudgaurd pouring chainsaw fuel into the carby) by running a bit of scrounged poly pipe straight to the tank from the pump. This bit of Bush Mechanics got us the 200 kms home, and as it by passed the original fuel line and filter, pinpointed the problem for us.
Have seen a few vehicles fitted with electric pumps, some Champs have an issue with vaporisation, and most also have an abnormally long fuel line. Often the pump is used just on start up to get fuel through to the pump.
Personally my preference is to stick with the original set up, on the KISS principle. However it is quite easy to hide the modification so no one will be the wiser.
Rich.