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Post by spud on Dec 16, 2016 17:36:09 GMT -8
Ok so heres my deal. Pump gas. I know exciting subject. Biggest problem I have is fuel. Really. I now run electric fuel pumps on my old cars, due to mechanical pump rubber part deterioration problems caused by alcohol polluted pump fuel, and to fill my carb to allow quicker starts without excess wear and tear on the starter and battery system, since pump gas will now evaporated entirely from the carb bowl after four or five days of sitting. I also am having to rebuild my carbs at least once a year due to accelerator pump failures. ( once again due to damage to rubber and elastomer parts due to alcohol mixed gas... I have experimented with a couple different additives to try and help, but generally they have their own destructive effect on rubber or elastomer parts. Diesel fuel seems to be a helpfull additive to slow evaporation and as an attemp to prolong the service life of the carb parts. anyone have any ideas or experience in keeping a old school fuel system with a carb functioning with blended pump poison? I know this to be a real problem with cars that get intermittant use.
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Post by fast401 on Dec 18, 2016 17:03:21 GMT -8
I've been using Sta-Bil in the AMX for over 12 years. Good? Bad? Hell, I don't know but I have had zero problems with the carbs or the electronic fuel pump.
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Post by 69Rebel on Dec 18, 2016 17:21:16 GMT -8
We have three stations in town here that sell non-ethanol fuel. Unfortunately it's about a buck more per gallon than blended.
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Post by sc397 on Dec 19, 2016 5:02:27 GMT -8
I've been using Sta-Bil in the AMX for over 12 years. Good? Bad? Hell, I don't know but I have had zero problems with the carbs or the electronic fuel pump. Generally speaking, I think we get better gas in our area than other parts of the country.. So that part of it is helping you. I had to run a batch of shit gas through the Javelin when I was in Nebraska a few years ago and have been battling the same crap that Spud is ever sence. I have to do the same thing where if the car sits a while, it has to crank enough to fill the carb as well. I don't really mind that so much because at least I have oil pressure by the time it finally fires. Also, I have sent like 4 brand new fuel pumps back because they go to hell in a matter of minutes. I don't know the answers, I am just helping Spud bitch about it. The Stable thing is probably a good idea though.
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Post by 69Rebel on Dec 19, 2016 7:16:46 GMT -8
I have an old oil bottle with a spout on it for filling carb bowls on cars that sit. Saves a ton of wear and tear on the starter. There must be a retailer in spudland who has non-blended gas. The only other answer I can think of is EFI and electric pumps.
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Post by spud on Dec 21, 2016 17:57:08 GMT -8
Now I love to bitch no doubt, but I honestly wanted to start a usefull topic for a change. Stabil is a decent fuel additive. I keep a couple quarts on hand and use it in everything I dont drive at least once a week. I still have problems with rubber or elastomer parts tho. As far as I know there are no places to get unblended fuel around here, unless its race fuel. I get about a year out of an afb carb, then its ready to have the yellow green powdery scum douched out and a new accelerator pump. If I remove the carb after use and drain it, then spray wd40 in it, it helps. But its a hassle doing that every time.
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Post by 69Rebel on Dec 21, 2016 21:58:24 GMT -8
You guys must get some incredibly shitty fuel down there. I had to clean out the (Weber) carb on my old Nissan pickup for the first time in 13 years last fall. I run it on the cheap shit and always have.
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Post by spud on Dec 22, 2016 10:33:28 GMT -8
I dunno how it rates on the shit scale but I wish they would go back to unblended. It cant be ecomomical to add ethanol to fuel at the price of ethanol and gasoline. I dont know why they do it. blended fuel is shit. The older it gets the shittier it gets. Once it starts to stink is when it gets destructive. Certain additives to try and help it are destructive. Aromatic solvents are destructive to rubber parts. And they dont really disolve the passage plugging deposits that stale blend causes. I have been experimenting with aromatics like tolulene with no real benefit. Tolulene is what they add to regular unleaded to make it super unleaded. Lucas fuel additive is good, and boosts milage a small amount. Not enough to justify the price. Best bang for the buck imo is a pint of diesel to 5 gallon jug of blend. It works about as good as stabil to slow evaporation. But isnt that good for long term storage. stabil is basically analine oil.
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Post by spud on Dec 22, 2016 10:39:15 GMT -8
Oh and one thing about blended fuel. Once it becomes plenty stale, it gets a little better fuel milage. I run waste fuel that I pump out of tanks in my daily driver jav, which has a weber carb that doesnt suffer from rot. It will gain about 2 mpg over fresh blend for some reason. I guess because evaporation has concentrated the stale blend.
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Post by fast401 on Dec 22, 2016 12:06:30 GMT -8
All I know is that my gas mileage drops about 75 - 80 miles per tankful on our Malibu because of the so called winter blend.
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Post by 69Rebel on Dec 22, 2016 23:37:26 GMT -8
All of my junk seems to get a little worse mileage on the "winter blend" as well.
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Post by Captain Awesome on Dec 23, 2016 9:02:05 GMT -8
Yep, took me a long time cranking to fire my truck up the other day.
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Post by spud on Nov 26, 2018 9:57:48 GMT -8
I bought a barrel of 93 octane unleaded with no alcohol. 295 bux. Thats about 6 bux a gallon. Drained all the corn piss from the tanks of my carbed old schoolers and put the corn piss into my 01 vortec chevy to get rid of it. Ran the engines to get the corn piss purged and carbs sobered up with real gas. Put sunoco gtx (98 octane unleaded, no corn piss , 60 bux for five gallon can) in street javelin and purged out the corn piss. Got it all rehabbed and ready for winter. Did the john deere too. No more corn piss in my old iron!
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Post by spud on Nov 26, 2018 10:07:43 GMT -8
Been studying up on race fuel . Vp and sunoco have many different blends. They use alcohol as an “ oxygenating” agent. You have to watch out. Heavier concentrations of corn require recalibration . Corn leans out the s/f ratio and will cause power loss . Properly calibrated af ratio will gain a horsepower or two at the cost of higher fuel consumption. Lots of interesting info in the search for a good blend of fuel. Sunoco “surge” is some very nice musclecar fuel @ about 12$ a gallon. Gotta pay to play friends🙁
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Post by 69Rebel on Nov 26, 2018 11:44:19 GMT -8
Corn squeezin's are excellent fuel...in systems designed to utilize it. Which means not much of anything made before about 2000. And pretty much not any power equipment.
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