91 K1500 5.7l studder problem!

[red tractor]

Thanks for the input

[hotrodpc]

Originally Posted by red tractor

I am required to run E10 by Oregon law. They don't allow the sale of pure gasoline for on road use.

Many counties in CA are the same way if the whole state is not that way now. CA smog counties, have some funky smelling gas. The smell is way differant. But it does appear from what I see in this thread, all the things I would have mentioned about the Gas, Methanol, E85, whatever you want to call it, have been said. Today, you see these cars and trucks with Flex Fuel labels on them, they will run even a higher amount % of ethanol in them.

****OFF TOPIC****
I always think its funny, everyone uses the term, pull up to the "pump" or at the gas "pump". Just for educational purposes and those who are interested. A gas "pump" is NOT a pump at all. Several years ago that box that you park next to, to fill your vehicle only served 1 purpose. To measure the fuel you were putting in your vehicle. Now days it can serve as 2 purposes. It can take a credit/debit card payment, and also measure the fuel you are putting into your vehicle. Its not a pump at all. Proper name the "gas pump" is actually a FUEL DISPENSOR. It dispenses the fuel into your vehicle. What actually does the pumping is called a turbine. One turbine on the underground tank feeds the fuel to all Fuel Dispensors. (In most cases) There will be a turbine on each tank that the station has, 87 octane, 89 octane, 91 octane, and diesel. So for how many ever grades of fuel the station has, that is how many turbines they have. Thats it. Ever notice when you are getting fuel, and you are cranking along filling your tank at a great speed, then some yo yo pulls up a couple dispensers over from you, and start fueling, then your rate of fill speed slows down? That is why. Only 1 turbine supplies all dispensors per grade. So if you were fueling 87 octane, and that guy a few dispensors over from you, is fueling 89 octane, your fill rate speed will NOT slow down. He is running off a differant turbine. Anyway, I will not bore anymore with more details about evap control, knock off safety devices etc. Just thought some might be interested in that tib bit. I did a couple very small mom and pop stations in CA for side work with a guy who made his living building service/fueling stations, and Mini Mart/Fuel Stations. So now you know, and everytime you see that news reporter on TV talking about pulling up to the "pump" you can yell back at the TV like I do and tell that reporter, its not a pump you idiot, its a dispensor.

[BernieB]

Turbines are fairly new in the business though, and not all areas actually allow them. I used to manage a station in NYC, back in the 90's, and took it through a $1.5 million renovation when it was sold in 1997. The renovation pretty much left only the garage area standing, everything else was removed and replaced, including tanks, pumps (yes, actual pumps - not dispensers), etc.

At the time, turbines were allowed in NJ, where the company that bought the station was located, but were not allowed under NYC FD regs, so the "dispensers" really are (still the same ones last time I visited) actual pumps.

[hotrodpc]

That would all be new to me Bern. This was in the early 80's we were doing this kind of work. Not sure what you consider recent. Now, I am not certain what Gomer Pyle was using in Mayberry, back then maybe it was a true pump, Being that 80's is almost 30 years ago, I would not call it recent. Of course it could have varied from state to state too. CA was very picky of course in that time. That is when the major crack down on smog started, and I do mean MAJOR, not like this little NOx devices etc on cars. That is when they started requiring cars to be smog checked, fuel stations had to be retrofited etc. We were taking out steel tank and reinstalling Fibreglass tanks and piping to dispenseors with fuel eveap recovery systems and saftey knock off valves. But we were removing dispesors that had been there for years and replacing with dispensors. Not pumps. You hear people freak over someone running into a fuel dispensor (known as pump) and an explosion. Almost impossible. Sure if the situation is just right it can. I will not say it NEVER can happen. But the odds are totally against it with the safety knock off valve. I know I am bad guy at times. Sometimes if I went to a station and they made me mad about something, while my truck was blocking their view, I could kick the crud out of the bottom of the dispensor and if I got it to vibrate or move just right, it could trip their knock off valve and shut the dispensor down and they'd have to call for a service call to fix it. I know, mischeavious and immature, but I was young then and I was successful at a couple of them.

[hotrodpc]

Oh, and to get back on topic and not totally high jack the thread, I would not worry about your studdering problem to much. My granddad studdered his whole life. Made him a tough guy. People made fun of him for it, and he'd open up a can.

[BernieB]

Originally Posted by hotrodpc

That would all be new to me Bern. This was in the early 80's we were doing this kind of work. Not sure what you consider recent. Now, I am not certain what Gomer Pyle was using in Mayberry, back then maybe it was a true pump, Being that 80's is almost 30 years ago, I would not call it recent. Of course it could have varied from state to state too. CA was very picky of course in that time. That is when the major crack down on smog started, and I do mean MAJOR, not like this little NOx devices etc on cars. That is when they started requiring cars to be smog checked, fuel stations had to be retrofited etc. We were taking out steel tank and reinstalling Fibreglass tanks and piping to dispenseors with fuel eveap recovery systems and saftey knock off valves. But we were removing dispesors that had been there for years and replacing with dispensors. Not pumps. You hear people freak over someone running into a fuel dispensor (known as pump) and an explosion. Almost impossible. Sure if the situation is just right it can. I will not say it NEVER can happen. But the odds are totally against it with the safety knock off valve. I know I am bad guy at times. Sometimes if I went to a station and they made me mad about something, while my truck was blocking their view, I could kick the crud out of the bottom of the dispensor and if I got it to vibrate or move just right, it could trip their knock off valve and shut the dispensor down and they'd have to call for a service call to fix it. I know, mischeavious and immature, but I was young then and I was successful at a couple of them.

Coulda been a California thing, as you said. Matter of fact, I'd be willing to bet the whole turbine system was probably invented in Cali back around the time you were doing them, but it took time for the idea to spread and get approval elsewhere.