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#1
10-11-2004, 10:53 AM
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effects of ten years of storage
My curiosity got the better of me and I tore apart my dead elec. fuel pump. I know my 67 250se sat for at least ten years as the state inspection sticker is from early 94. The pictures attached show how the small amount of unspent gas in the pump had turned to a consistency of taffy. I believe I killed the pump when I tried to turn over the motor the very first time. The thick coagulated fuel destroyed the brushed and caused the motor to over heat and melt some parts and fuse others (the alum. impeller is welded to the casing). The debris shown in the picture, which resembles parts of a cockroach, is a melted plastic that is used under the brushes.
Lesson learned: it pays to stabilize your fuel anytime you park your for an extended time. 
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#2
10-11-2004, 02:19 PM
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I am a beliver in fuel stabilizer! Although I wonder how long it is good for? Gas does some real cool things after it sits for a decade or so.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#3
10-11-2004, 07:21 PM
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Stabilizer helps but NOTHING makes gas last 10 years! It'd be like taffy with stabilizer, it'd just take 1.5-3x longer (depending on fuel and stabilizer ratio and quality) to get there.
That's why you're supposed to DRAIN your fuel tank before storage, and RUN the car until it stalls out, then crank it a bit more and make sure the imortant stuff is clean! (Injectors/Carb, Pump, lines, filter(s), etc)
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Current: 2021 Charger Scat Pack Widebody "Sinabee" 2018 Durango R/T Previous: 1972 280SE 4.5 2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi" 1999 Chrysler 300M - RIP @ 221k
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#4
10-12-2004, 07:28 AM
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Ahhh-gasoline. the EVIL fuel. Unstable. Dangerous.
Its a pity Rudolf Diesel didn't come along until after Otto as we probably wouldn't be using much of that sxxt now.
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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)
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#5
11-20-2004, 09:59 PM
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medium term to long term storage.
Believe if storage is for more than year. Empty or run tank dry. Add about a gallon of thin oil to tank. Crank over until system is full. I would change this oil probably every three to five years. Especially on mercedes with two zenith carbs. Probably should buy specific storage oil somewhere but almost any oil is better than leaving gasoline in system long term probably. Some additive or process in our regular gasoline seems to make it go bad faster than in old days. Our premium grades are a little better in storage situations.(canada) Above info obtained years ago somewhere but have never forgot it. Now only if i could disipline myself to put it into practice myself. Oil swells and eats rubber so maybe better off using transmission fluid. It's the old story of not enough time to take 1/2 hour and do it now but book a day or two in future to clean up mess and vent your wallet. Any opinions?
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