How to flush fuel lines w/o draining
09-10-2013, 12:13 AM
#1
Rennlist Member
Thread Starter
How to flush fuel lines w/o draining
Help. '93 GTS: The car is on blocks getting new rad, oil lines and tranx lines; can't start the car now; fuel is 4 months and counting; I should have prepped it by adding a stabilizer to the fuel and run it, but I didn't. Now I've added the stabilizer and would like to get the stale stuff out of the rubber bits. If I open the system and run the pump, it will just flow circulate? I'll rig some funnel to catch the fuel.
I only need to energize the pump for a minute or so to to get the old stuff out of the rubber lines? Is the easiest/best place to open the system as it exits the "U" hose under the air box? The return hose to the tank is up in the wheel well, right, not very accessible.
Thanks.
I only need to energize the pump for a minute or so to to get the old stuff out of the rubber lines? Is the easiest/best place to open the system as it exits the "U" hose under the air box? The return hose to the tank is up in the wheel well, right, not very accessible.
Thanks.
09-10-2013, 01:25 AM
#2
Chronic Tool Dropper
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Lifetime Rennlist
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Steve--
I wouldn't open the system at all. Run the pump, and fuel will circulate from the tank through the rails and FPR, and back to tank via the FPR return line.
If you must open the system, get the return line connection that goes through the fuel cooler on the firewall behind and under the air cleaner housing.
I've accidentally left fuel in the boat tank for six months with no ill effects. I'm not sure I'd panic much over some that's just a few months.
I wouldn't open the system at all. Run the pump, and fuel will circulate from the tank through the rails and FPR, and back to tank via the FPR return line.
If you must open the system, get the return line connection that goes through the fuel cooler on the firewall behind and under the air cleaner housing.
I've accidentally left fuel in the boat tank for six months with no ill effects. I'm not sure I'd panic much over some that's just a few months.
09-10-2013, 10:27 AM
#4
Rennlist Member
Thread Starter
Dr. Bob and Leon, thanks for the reassurance, and info, I wasn't sure it would circulate by jumping the relay. The guy at the inspection station got me a little paranoid. Said he could smell old gas. These projects have a way of telescoping, delaying, etc. I replaced the lines 2 years ago and, well, we try to do the right thing. Thanks.
09-10-2013, 12:06 PM
#6
Team Owner
Steve how long do you think its going to be before the repairs are made?
If its going to be another 8 months then I might consider running the FP .
If its going to be say another month I would leave the fuel system alone,
make your repairs and then go drive the car.
Funny things happen when trying to fix things that are not broken.
IE you could plug the jumper into the wrong slot and let the smoke out of the wires.
In other words, fix the stuff your working on and go drive the car
If its going to be another 8 months then I might consider running the FP .
If its going to be say another month I would leave the fuel system alone,
make your repairs and then go drive the car.
Funny things happen when trying to fix things that are not broken.
IE you could plug the jumper into the wrong slot and let the smoke out of the wires.
In other words, fix the stuff your working on and go drive the car
