T-Rex of America

[mellowcmb]

Anyone here have any suggestions on how to pump gas faster into the T-Rex? Seems like everytime I try and pull the handle all the way in, the gas just pours out of the bike. I have to pump gas real slowly. Is this the only way to do it?

[chicknfeet]

This should problay only be address to cali people only - the EPA pumps here in cali suck ass pull the rubber boot back and spray it in keep an eye out on how many gallons you are pumping and you may may require. Cali sucks... I have filled in NV FL CO AZ and UT and never had a problem filling ONLY CA!



grrrrr...........
_________________
"OUT TO LUNCH" and not coming back.

[mellowcmb]

[chicknfeet]

here is the scoop on cali pumps just so we all understand what cali rexxers have to goe through to get gas... doesn’t seem like a big deal until you realize that the longer it take to get gas less riding we can do and more question people can ask

The Problem: When 10 gallons of gasoline are pumped into your gas tank, 10 gallons of gasoline vapor are displaced. To prevent the vapor from escaping into the atmosphere, gasoline pumps are equipped with Enhanced Vapor Recovery Systems (EVR systems), which recover the displaced vapor. The gasoline pump is also equipped with an In-Station Diagnostic System (ISD system), which monitors the EVR to make sure that it is working properly. If the EVR fails, the ISD system responds by shutting down the pump.


When a company develops an ISD system, it must be tested and certified before it can be put on the market. The California Air Resources Board (CARB) has set regulations that require an ISD system to catch at least 95% of all failures in order to become certified. The purpose of this project is to design statistical certification tests that CARB can run on new ISD systems to efficiently test their accuracy. CARB tests ISD systems by instituting artificial failures at the pump. The failure in the EVR should cause the ISD to shut down the pump. CARB runs a certain number of trials, and the accuracy of the system is determined from the number of failures that the system catches versus the number it misses. The certification test procedure must include how many trials to perform, how many failures must be caught in order to pass a system, and how stringent the test can be before it begins to cause error in the certification procedure.

Two processes occur as you pump gasoline into your tank. First, gasoline is dispensed from the nozzle of the pump. Second, the EVR system works simultaneously; as gasoline vapor is displaced, the nozzle hood prevents the vapor from escaping into the atmosphere, sucking it back through a separate tube in the pump and into a vapor recovery tank. The ISD system monitors the EVR system. If the pump becomes obstructed, or for any reason the EVR stops working, the ISD will automatically shut down the gasoline pump.

In order to determine if the ISD system is working properly, CARB does on-site testing. There are two parts to the certification process. The first part, the operational test, puts the system into service at a working station for 180 days. The system and station are checked periodically and the system must function flawlessly. In the second part of the certification test procedure, CARB induces artificial failures at the pump to observe whether the ISD is properly catching the EVR failures. The nozzle hood is covered with duct tape, as to block the recovery of vapor by the EVR system. At this point, the EVR system is failing and the ISD should automatically shut down the pump. If the ISD system catches the failure, the trial is recorded as a successful failure. If the ISD does not catch the failure and allows the pump to continue working, the trial is recorded as an unsuccessful failure. CARB regulations stipulate that the ISD system must successfully catch at least 95% of all failures. From the number of successful failures versus the number of unsuccessful failures in a given set of trials, the probability that the ISD system will catch at least 95% of all failures must be calculated. Given a number of trials, the project should determine how many successful failures are required to pass a system. The certification test procedure must also take into account error in order to avoid passing bad systems with too lax a test or failing good systems with too stringent a test.

1. Phase I Pressure

A phase I fueling refers to the transfer of fuel from the tank truck to the underground storage tank (UST). A phase I pressure failure occurs if the UST ullage pressure is greater than 2.5" water column gauge (wcg) for at least 25% of the time in a 20 minute moving window. In other words, the ISD should fail the EVR system if the pressure becomes excessively high when the underground tank is being filled with fuel.


2. Underground Storage Tank Pressure Tests

The ullage pressure is the pressure of the vapor space above the fuel in the UST measured in inches of wcg. Measurements of the ullage pressure are obtained and recorded at least once per minute. Pressure readings recorded while the UST tank is being filled with fuel (Phase I) are excluded from this failure mode test.


If at least 5% of the pressure readings for the week are above 1.5" wcg, then the ISD should issue a warning. If during the subsequent week, at least 5% of the data is again above 1.5" wcg, then the ISD should issue a failure and shut down dispensing from the malfunctioning fueling points.


3. Air to Liquid Ratio

One of the main tasks performed by the EVR system is the collection of gasoline vapors released from an automobile's fuel tank when it is filled. The volume of vapor recovered should be approximately equal to the fuel delivered. In other words, the ratio of "air" recovered to the "liquid" dispensed, A/L, should be approximately equal to 1 for all fueling events. An A/L failure occurs when this ratio is significantly smaller than 1.


The A/L failure mode test is conducted on a daily basis in which there are at least 15 fueling events. If on any particular day, fewer than 15 fueling events occur, the ISD may use data from previous days until 15 fueling events are acquired. The ISD system specifies upper and lower bounds in order to determine when failures should occur. It should be noted that these bounds vary depending on the vendor. If the A/L ratio is at least 75% below the lower boundary or at least 75% above the upper boundary, then the ISD should issue a warning. If on the next day, the A/L ratio is in either of these regions, then the ISD should fail the EVR. If the ISD correctly fails with an accuracy of at least 95%, then the ISD passes the A/L gross failure mode test.


4. Pressure Integrity Test

This test is designed to identify possibly leaks i the UST. Over a one week time period, if the vapor space leaks at twice the acceptable leakage rate as defined by CARB in TP-201.3 ("Determination of 2 inch WC Static Pressure Performance of Vapor Recovery Systems of Dispensing Facilities"), then the ISD should activate a warning alarm. If the vapor space leaks at twice the allowable rate for the subsequent week, then the ISD should activate a failure alarm and inhibit the use of the malfunctioning fueling points. If the ISD correctly fails the system at least 95% of the time, then the ISD passes the pressure integrity failure mode.


5. Vapor Processing Test

The vapor processing failure mode test is conducted on a daily basis and entails determining whether or not the vapor processor is functioning properly. If the vapor processor malfunctions, then there exists a risk of emitting excessive amounts of hydrocarbons, benzene, or HAPS into the environment. The specifics of what constitutes an excessive amount is described further in the CARB document CP-201 Section 8. The ISD should issue a warning on the first day and a failure on the following day if the risk of releasing harmful vapors is high. If the ISD fails the systems correctly with an accuracy of at least 95%, then the ISD passes the vapor processing failure mode test.
_________________
"OUT TO LUNCH" and not coming back.

[Geezer]

[GRex]

OMG! What a tome. . .

Cali isn't the only place we have problems pumping gas - just cali has the problem at every station.

In Texas, it depends on the gasoline company and the nozzle. Many prefer higher octane Shell gas - but they have consistently bad nozzles similar to cali (I don't know if they have the same system that cali does) Some nozles with

By the way, have any of you used the new "Nitrogenized" gas that shell sells? After about 3 tanks, my 1200 was running like $hit. I changed the plugs and switched gas and my problems went away.
_________________
2010 White/Silver 14RR
2005 Pearl White T-Rex(SOLD)

"Two things are infinite: The Universe and Human Stupidity; and I'm not sure about the universe."
- Albert Einstein

[ViperSSSS]

I read all that, but I still don't know why pump stops at $75.00 when I fill my Hummer?
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2007 Blue T-Rex 1400R
Muzzy M10 Full Exhaust - Flies Removed - PCV with Autotune

[GRex]

[Sexy_Rex]

[Muggz]

As of June 2009, all california pumps were required to have the mentioned above. There were a few older gas stations by my house where filling gas was never an issue but now I have to pump the same way i pee: trickling.

[haya]