It took several cycles of washing & rinsing to get the tops of the tanks clean enough to open the front one.
IF THE IMAGE IS TOO SMALL, click it.
Gasahol has degraded the filler tube inside the neck to the point that it's cracking & splitting, but it hasn't collapsed yet. I'm amputating it anyway.
I assumed that leaking vapor valve grommet would have allowed a gallon of water into the tank. But there wasn't enough to detect in a sediment jar. And even though the gas was sour-smelling, it didn't appear to have degraded enough to matter, so I'm burning it in the '95 F150 now.
I'll change its fuel filter as soon as that gas is burned out. I've already trimmed off the degraded end of the inner filler neck (lower Right panel).
UPDATE: The '95 F150 now needs the head rebuilt because I forgot how sensitive the 4.9L is to fuel problems. Some valves stuck, and are probably now bent because I didn't put any Lead-substitute or other additives into the old gas. It probably wouldn't have hurt any other engine - I've burned old gas in my CV's 4.6L engine before.
UPDATE: With a reman head, the '95 F150 is back to running perfectly.
![20200110_133328.jpg It took several cycles of washing & rinsing to get the tops of the tanks clean enough to open the front one.
IF THE IMAGE IS TOO SMALL, click it.
Gasahol has degraded the filler tube inside the neck to the point that it's cracking & splitting, but it hasn't collapsed yet. I'm amputating it anyway.
[url=https://www.supermotors.net/registry/media/1117500][img]https://www.supermotors.net/getfile/1117500/thumbnail/170630_wash.jpg[/img][/url]
I assumed that leaking vapor valve grommet would have allowed a gallon of water into the tank. But there wasn't enough to detect in a sediment jar. And even though the gas was sour-smelling, it didn't appear to have degraded enough to matter, so I'm burning it in the '95 F150 now.
I'll change its fuel filter as soon as that gas is burned out. I've already trimmed off the degraded end of the inner filler neck (lower Right panel).
[url=https://www.supermotors.net/registry/media/1150549][img]https://www.supermotors.net/getfile/1150549/thumbnail/fillerrepair97f350.jpg[/img][/url]
UPDATE: The '95 F150 now needs the head rebuilt because I forgot how sensitive the 4.9L is to fuel problems. Some valves stuck, and are probably now bent because I didn't put any Lead-substitute or other additives into the old gas. It probably wouldn't have hurt any other engine - I've burned old gas in my CV's 4.6L engine before.
UPDATE: With a reman head, the '95 F150 is back to running perfectly.](https://www.supermotors.net/getfile/1156577/fullsize/20200110_133328.jpg)