LTDScott
10-24-2005, 03:05 PM
I finally got the dual exhaust done on my LTD. Looks and sounds great (it's surprisingly quieter than my previous exhaust... until I get on the gas). I'll have pics soon.
Anyway, when I went to pick up the car, the exhaust guy said that the fuel lines are close to the exhaust and were melting. In fact one had a hole melted into it and was leaking :(
When I got it home, sure enough he was right. I ran the fuel lines along the framerail and up into the trunk area on the passenger side. The tailpipes get close and have melted part of the lines. I didn't get to enjoy my new mods. So a lot of the info in my thread for the fuel pump conversion thread no longer applies if you are going to dual exhaust.
After several hours spent laying on rocks under Fox cars in the junkyard, I found that the best solution is to get the hard metal fuel lines (pressure and return) from a Lincoln Mark VII. They go from the fuel filter on the front of the pass side torque-box under a brace then to the driveshaft tunnel, then along the hump and up and over the axle. They terminate right next to the pump outlet. I had to drop the driveshaft and wrestle the lines a bit to get them in, but they'll work great. I got some sheetmetal screws and the factory line "retainers" from the Lincoln lines and bolted the lines directly onto the driveshaft tunnel. I'll also have to reroute the vapor line for the evap system, but I should be able to use normal vacuum hose for that.
I didn't get finished but will post pics as I get done.
Anyway, when I went to pick up the car, the exhaust guy said that the fuel lines are close to the exhaust and were melting. In fact one had a hole melted into it and was leaking :(
When I got it home, sure enough he was right. I ran the fuel lines along the framerail and up into the trunk area on the passenger side. The tailpipes get close and have melted part of the lines. I didn't get to enjoy my new mods. So a lot of the info in my thread for the fuel pump conversion thread no longer applies if you are going to dual exhaust.
After several hours spent laying on rocks under Fox cars in the junkyard, I found that the best solution is to get the hard metal fuel lines (pressure and return) from a Lincoln Mark VII. They go from the fuel filter on the front of the pass side torque-box under a brace then to the driveshaft tunnel, then along the hump and up and over the axle. They terminate right next to the pump outlet. I had to drop the driveshaft and wrestle the lines a bit to get them in, but they'll work great. I got some sheetmetal screws and the factory line "retainers" from the Lincoln lines and bolted the lines directly onto the driveshaft tunnel. I'll also have to reroute the vapor line for the evap system, but I should be able to use normal vacuum hose for that.
I didn't get finished but will post pics as I get done.