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Old 01-20-2005, 09:55 PM
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old gas?

I'm getting a car that hasn't been started in over a year. I don't think it was stored properly. Should I siphon the gas out or just put fuel stabilizer to absorb the water? Should I put a carb cleaning additive in too? I will also have to add lead. Is it okay to add all this crap to the fuel at one time? Might be a dumb question but I'm new to this stuff.

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Old 01-20-2005, 10:43 PM
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Old gas

Best thing to do is drain the tank. Put 5 or three gals of NEW gas in the tank and add some gas line antifreeze and it will take out any water that was left in it. As far as adding lead,,well good luck, I don't know of any lead additives. You can purchase Racing fuel, which has lead in it but its about $ 4.00 a gal, I think.
Good luck.
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Old 01-20-2005, 10:46 PM
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old gas

I would remove gas line as close to the carb as possible. Turn engine over to pump new fuel through line. Drain carb bowl as to get fresh fuel in carb.
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Old 01-21-2005, 05:31 AM
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Bardahl insteado lead
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Old 01-21-2005, 06:58 AM
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sitting a year, ALL the oil has drained to the pan, BEFORE you put new gas to it

kill the ignition, pour 2-4 onces of ATF down the carb, crank the motor 30 seconds/wait 2 minutes/crank again/wait...do it 5 times, it pre-lubes the motor (cam/lifters/valve seals/etc) and drains the yuch out of the carb.

it's gona smoke like crazy for a couple of minutes when it fires but the ATF lubes and protects the rings

it's gona run crummy for awhile till the varnish and yuch is disolved/gone, atleast 500? miles, then test and tune?

there is alot of scale in the tank, add another $4 filter just before the pump to catch it
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Old 01-21-2005, 02:54 PM
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I've also done the same with Marvel Mystery. It does smoke quite a bit but seems to help clean things as well.

And I agree with a pre-lube. After sitting that long most of the engine is bone dry. Might yank the valve covers and add the oil by coating everything, if the engine is in need of oil.
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Old 01-21-2005, 03:04 PM
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old gas

We started my Dad's '55 chev on the gas in it's tank, you could tell it was crap (shalack) from the smell of it but we didn't need to drain the tank. The car was sitting for over 10 years. We were both amazed it ran it even idled nice.

I don't think you need to worry about draining the tank if it's only been sitting a year
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Old 01-21-2005, 06:53 PM
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first of all how much fuel is in the car? if it is almost full and smells sour I would try to get most of it out, but if it still smells like gas or is only about 1/4 full (or 3/4 empty ) I would top it off and not worry about it.
And have fun too
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Old 01-21-2005, 10:51 PM
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put the old fuel into the daily driver; I'd say about 20%old fuel would be ok, maybe more.
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Old 01-22-2005, 07:30 AM
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old gas...

if its only been a year you might add new gas to it and run it out.


Tazz


Rat Rods Rule!
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Old 01-22-2005, 03:59 PM
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It end up having less than 1/4 in the tank and still smelled fine so I added 6 gallons and gas antifreeze. To my surprise it started the next day. I looked in the original manual for the car and it said to use low lead or unleaded gas. Will it be okay on unleaded? It's a 72 corvette if that helps. thanks
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Old 01-22-2005, 04:36 PM
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old gas

Yes it will be fine on unleaded fuel. Glad to hear you got it running. Good luck

Yes it will be fine on unleaded fuel. Glad to hear you got it running. Good luck Man this place is busy,,,its almost impossiple to get a post to go through. Oh well
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Old 01-25-2005, 12:55 PM
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Okay, you can roll your eyes at the dumb girl, but why would you need to add lead?

Chickie.
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Old 01-25-2005, 03:09 PM
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I agree.
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Old 01-25-2005, 03:38 PM
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4 Jaw, why lead in gas?

Easier to explain it backwards?
Once unleaded became the law, motors had to have hardened steel valve seats to protect what was a "three angle face" cast iron valve seat surface.

Besides helping make a more even, cooler burn (higher octane), the lead coated and protected the cast iron valve seats, kept the cast iron from burning.

There's alot more to the story but that's the main reason as far as I know.
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