Runs 15 minutes then dies and won't start

[mrmustang]

Originally Posted by davids2toys

Hi Tom,
I went to VT the end of Dec. I brought along two 5 gallon gas cans. I filled them with premium 91 octane non ethanol gas. Still sitting on the floor in back of the Cobra. I have not been able to do anything on the car due the weather and my garage in Winter configuration with snowblowers, shovels, plow truck, etc, etc. I also will need to get the present gas level down to the pick up so I will have minimum dilution of the new non ethanol gas. Right now I have about 1/4 tank of 93 octane ethanol fuel.If I drain the tank I will be way below the pickup level which the require a ton of gas just to regain the prime. When I first got the car I was running out of gas so I was heading to the nearest gas station about 4 miles down the road. The gauge was reading E. All of a sudden the car started exhibiting all the symptoms of fuel starvation. I started weaving back and forth to keep the fuel going in the pickup.Made it about a mile like this and then it finally died.Big mistake because it took many hitchhiking trips to the gas station and filling a 1 gallon anti freeze which they had lying around.I think it took about 4 gallons before the gas level came up before it would start. Will never do that again. If anybody ends up in this situation, dont try to keep the car alive unless you can actually see the gas station!!! Now I always fill up around the 1/4 mark.

So are you saying you ran out of gas and that was the cause of the car not running for more than a few minutes?

[davids2toys]

Originally Posted by mrmustang

So are you saying you ran out of gas and that was the cause of the car not running for more than a few minutes?

NO, I said in the post when I first got the car. That was over 10 years ago. I was giving the reason why now I want to get the fuel level as low as possible before adding the non ethanol gas

[mrmustang]

Originally Posted by davids2toys

NO, I said in the post when I first got the car. That was over 10 years ago. I was giving the reason why now I want to get the fuel level as low as possible before adding the non ethanol gas

Honestly, if you are adding 10 gallons to a tank that is currently 1/4 full, you have diluted the ethanol based fuel farther than you would need to be concerned about.
If you have concerns about ethanol, then rebuilding your fuel pump and carburetor, along with replacing your fuel filter (do you have more than one?) would need to be accomplished beforehand. In addition, pulling your fuel pickup out of the tank and checking and more than likely replacing the sock would also be high on my to do list.


Bill S.

[davids2toys]

Originally Posted by mrmustang

Honestly, if you are adding 10 gallons to a tank that is currently 1/4 full, you have diluted the ethanol based fuel farther than you would need to be concerned about.
If you have concerns about ethanol, then rebuilding your fuel pump and carburetor, along with replacing your fuel filter (do you have more than one?) would need to be accomplished beforehand. In addition, pulling your fuel pickup out of the tank and checking and more than likely replacing the sock would also be high on my to do list.


Bill S.

Bill,
This is a heat induced issue. The non ethanol gas experiment was to rule out vapor lock due to lower boiling point of ethanol fuel. That is why I want to get the level as low as possible so as to limit dilution for accuracy in the test. I highly doubt this is vapor lock though. If I totally drain tank, does anybody know how much gas it will take to reach the level of the pick up?

[mrmustang]

Originally Posted by davids2toys

Bill,
This is a heat induced issue. The non ethanol gas experiment was to rule out vapor lock due to lower boiling point of ethanol fuel. That is why I want to get the level as low as possible so as to limit dilution for accuracy in the test. I highly doubt this is vapor lock though. If I totally drain tank, does anybody know how much gas it will take to reach the level of the pick up?

Jegs carb heat shield kit


You only need one or two, with gasket material in between.


Bill S.

[davids2toys]

Originally Posted by mrmustang

Jegs carb heat shield kit


You only need one or two, with gasket material in between.


Bill S.

Already has the turkey pan protecting the bowls. The concern is the unprotected fuel lines and fuel log below the turkey pan. This heat shield will be doing the exact same thing as the present turkey pan. Also as have been posted. I have fuel pressure when trying to restart the car after it shut off. The configuration of the fuel log and lines has remained unchanged for the last 10 years of ownership