lucky day

[2ML67]

Decided it was a good day to finally repaint the engine in my Fiero so I removed the fuel rails and other stuff in the way and did the paint work. Got every thing back together and I checked for leaks at the injectors as I always do on reassembly of the fuel rails by priming the pump a few times.
First prime ok, second ok then the third and usually last test prime the fuel line feeding to the fuel filter erupted spewing fuel all over the tranny and muffler.
I start thinking that was close if I had put off the paint work the fuel line which was rotten on the inside would have most likely blown while I was driving down the road and not just priming the rails checking for leaks.
So tomorrow I am going to go buy some new high pressure fuel line and replace all the fuel lines to be safe. Dan

[aaron88]

This may be a larger problem than you think.  If the line(s) oxidized from the inside then there is moisture in your fuel system.  I'd do a complete system check.

Aaron

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[2ML67]

Already dropped the tank, drained it and am now replacing all the fuel lines to be sure. the line that blew was falling apart inside and I checked another piece down by the tank which had the same size hose from the same larger piece and it was really soft and not in ver good shape either. On the return side the lines are all ok but I am replacing them any ways.
The line that went was 100 PSI line so it wasnt failing because of over pressure so the first thing I thought of was contamination as well that is why the system is being replaced.
I am wondering if it came from the Sunoco ultra 94 fuel I left in the tank all winter I have in the past always avoided letting the car be stored with fuel in the tank that contains ethanol and Sunoco gas has 10%. Dan

[aaron88]

Dan;

You don't have to worry about the fuel as far as eating away at the lins, it won't do that.  Mechanol which is now not in use had some adverse affects on filters and seals, but ethanol does not do the same thing.

If you got water in the fuel from a gas station it will have nothing to do with the supply of fuel to the station, it will have something to do with the seapage at the station.  This is one of the reasons I always recomend filling up at the same station and ensuring that station has new tanks!  This way you will know where the bad gas came from if it should happen.

High pressure lines will always have some internal line wear (not going to get into why) however 100 psi is not considered to be high pressure.  No adverse affects should occure as long as you purchase fuel lines that are rated for 100 psi.

Hope this helps.

Aaron

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