Engine 0ff, Strong Gas Smell.

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Snail50

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Mar 24, 2001

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Miami

Mar 1, 2004

#1

• Mar 1, 2004

• #1

When the engine is off, there is a strong gas smell coming from the engine bay. There is hardly any odor at all from the rear of the car or along the sides, just from under the hood.
Any suggestions as to what this might be? I didn't see any gas pooling on the intake manifold, and there don't appear to be any fuel leaks.

Thanks for your help.

 

dodgestang

Active Member

Dec 15, 2003

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Cecil County, MD

Mar 1, 2004

#2

• Mar 1, 2004

• #2

Snail50 said:

When the engine is off, there is a strong gas smell coming from the engine bay. There is hardly any odor at all from the rear of the car or along the sides, just from under the hood.
Any suggestions as to what this might be? I didn't see any gas pooling on the intake manifold, and there don't appear to be any fuel leaks.

Thanks for your help.

Click to expand...

Your floats may be set too high causing some gas to run out of the bowls of the carb and down the intake when you shut down.

 

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Snail50

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#3

• Mar 1, 2004

• #3

how do I fix this? I've never worked on a carb before.

 

6

67GTA-FB429

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Tri-Cities, Wa

Mar 1, 2004

#4

• Mar 1, 2004

• #4

Before anyone posts any tech help...I'll say this, go buy a book.

Is it a Holley carb?? If so, the adjustment is on top of the fuel bowl, you will need a wrench and a screwdriver. There is a lock nut and the adjusting screw. Also you will need to remove the sight screw on the side of the fuel bowl. With the engine running (fuel pump on) you turn the adjustment screw until the fuel level in the bowl is just at the lower edge of the sight hole on the side. Carefully hold the adjust screw while tightening the locknut.

 

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Snail50

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#5

• Mar 1, 2004

• #5

my next move is to get a manual...

 

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Snail50

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#6

• Mar 1, 2004

• #6

the carb is a remanufactured MoFoCo.

 

kirbyalaska

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Oct 30, 2002

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SUX

Mar 1, 2004

#7

• Mar 1, 2004

• #7

dodgestang said:

Your floats may be set too high causing some gas to run out of the bowls of the carb and down the intake when you shut down.

Click to expand...

You may also want to check around each of the connection points of the fuel lines. There may be a bit of a seepage that is hard to see but puts off the smell.

 

pabear89

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Apr 15, 2003

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High in the Hills of So Ca with the Voices in My H

Mar 1, 2004

#8

• Mar 1, 2004

• #8

I will assume that this happens after you have run the engine to operating temp. It could be boiling the gas in the carb, check to see if has a spacer under the carb. it it doesn't put one on.

PB

Ps. Ford Shop Manual, it's a good thing.

 

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Snail50

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Mar 2, 2004

#9

• Mar 2, 2004

• #9

Thanks for the advice, all.
I found the problem: gas is seeping out of the carb from under and around the pump assembly.
I don't know why I didn't see this the first time, because I looked in that place specifically just because it is right up front and easy to see. I guess it just wasn't dripping then like it was last night.

 

Edbert

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Jul 13, 2002

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109

Austin TX

Mar 2, 2004

#10

• Mar 2, 2004

• #10

Better get a fire extinguisher so you don't lose that $9K clean-but plain-jane coupe

 

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Snail50

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Mar 24, 2001

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Mar 2, 2004

#11

• Mar 2, 2004

• #11

Edbert said:

Better get a fire extinguisher so you don't lose that $9K clean-but plain-jane coupe

Click to expand...

Already in there.