br2an
Active Member
2001 JCB series 3 backhoe that has a fuel leak. I know where the leak is and what is causing the leak but I'm not sure what the real problem is.
Here goes: when sun hits the fuel tank in the morning, tank warms up and pressurizes the tank. (think of a plastic fuel can that swells up when left in the sun) This pressure build up causes fuel to leak out from the top of the fuel sediment bowl. (not sure if a fitting or seal or ??) If I loosen the fuel cap overnight, no leak the next day.
Before I pull the fuel sediment bowl apart and fix the leak, should the fuel system be building up pressure? Or should there be some kind of a vent in place to relieve the pressure. If I remove the cap after a couple of hours of just sitting in the sun there is a very noticeable blast of air/fumes.
Here goes: when sun hits the fuel tank in the morning, tank warms up and pressurizes the tank. (think of a plastic fuel can that swells up when left in the sun) This pressure build up causes fuel to leak out from the top of the fuel sediment bowl. (not sure if a fitting or seal or ??) If I loosen the fuel cap overnight, no leak the next day.
Before I pull the fuel sediment bowl apart and fix the leak, should the fuel system be building up pressure? Or should there be some kind of a vent in place to relieve the pressure. If I remove the cap after a couple of hours of just sitting in the sun there is a very noticeable blast of air/fumes.