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Author Topic: Bad Gas? Wont start.  (Read 3476 times)

Offline Torque454

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Bad Gas? Wont start.
« on: March 01, 2010, 11:12:42 pm »
Finally getting my 79 C10 going after swapping in a 454. Gas has been in the tank for 3 or 4 years. I put a new pump on it. Gas is reaching the carb, the accelerator pump squirts fuel when you pump the pedal, but it wont start. If you pour gas in the carb, it will run. But it wont run with the gas in the carb. Bad/old gas is all I can come up with. What do you guys think?
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Offline Irish_Alley

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Re: Bad Gas? Wont start.
« Reply #1 on: March 02, 2010, 02:58:24 am »
does it even try to start or pop or anything?
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

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Online VileZambonie

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Re: Bad Gas? Wont start.
« Reply #2 on: March 02, 2010, 05:49:15 am »
Rebuild the carb and drain the gas tank
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Offline Stewart G Griffin

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Re: Bad Gas? Wont start.
« Reply #3 on: March 02, 2010, 06:10:06 pm »
When you switched to the 454, did you put the distributor in right?

i'm betting that the gas is still "ok", at least good enough to start.

How stupid;  i didn't read your post carefully.
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Offline Torque454

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Re: Bad Gas? Wont start.
« Reply #4 on: March 03, 2010, 12:41:17 am »
I stuck a line from the pump down into a fresh can of gas and got it to run (wont idle but will run above idle, but that might be  from the fact that the engine was still cold and the choke isnt working yet).

I took the carb apart and cleaned it up, used air to blow out all the passages.

The timing is right. I had the #1 piston at TDC and i dropped the distributor in pointing right at #1 tower. Took quite a while to get it in there right, i had to reach down in there with a screwdriver and get the oil pump shaft lined up with the distributor shaft.

Today I tried to siphon the tank dry. I learned that it was apparently already dry. The little bit of gas that the fuel pump pumped and filled the carb with was apparently the last of the gas in the tank, even tho the gauge says it has an eighth of a tank. So tomorrow i'll throw in 5 gallons of fresh gas, hook all the lines back up and see about getting it to run on its own fuel tank instead of the gas can underneath the bumper.

Also got my front drive shaft installed as well as the carrier bearing. Working on changing the rear end now so my drive shaft will bolt up. Converted this truck from a 350 with 3 on the tree manual trans and 12 bolt rear with 3.08s  (originally had 250 Inline 6 with the same 3 on the tree trans) to 454 with a TH400 and a 14 bolt with 4.10s. Gonna be able to rip a house off the foundation by the time i'm done.  (Figuratively speaking of course).

Probably looking at 8mpg too. lol.

I want a built 700r4... :)
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