Ferrari Mailing List: Re: Fuel Smell - 308 carbed GTS

[Robert W. Garven Jr. (rgarven]

Doug and all,

I am sending Doug a fuel diagram for his car.  I replaced ll my hoses which are similar but not exaclty the same. There are allot that can go bad but the lower xover hoses and the top xover hoses and 

any other fuel lines off the pump or filler neck could be suspect. I used all Dave Helms hoses. They are not cheap but the best available anywhere the fuel hoses were a snap to put on and kits are available.

I have changed all my fuel hoses twice in 17 years so I think Doug your time has come.  The carbs have fuel bowls which are open to the atmosphere so a little gas smell is normal on the carb cars

the green cavis hoses are also suspect.

Robert W. Garven Jr.

rgarven [at] gmail.com

 "The Ferrari is a dream - people dream of owning this special vehicle and for most people it will remain a dream apart from for those lucky few". Enzo Ferrari

On Sep 26, 2011, at 12:16 PM, Doug and Terri Anderson wrote:

Thanks Hans ?

First to answer Brian?s question ? ayep, just filled up a few weeks ago and it?s been sitting since.

And now to your question Hans ? stinks only when driving. 

So system is pressurized. 

Low pressure, 5 or6 #?s my guess but enough for spritz out of cracks and crevices.

Thot about carb overhaul ? just cuz.  Got any good reference sources for articles or books?

Thanks

DOUG

 

 

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From: Hans E. Hansen [mailto:FList [at] hanshansen.org]
Sent: Monday, September 26, 2011 12:05 PM
To: DOUG
Cc: The FerrariList
Subject: Re: [Ferrari] Fuel Smell - 308 carbed GTS

 

Doug:

Is this problem when it's running, just sitting in
the garage, or all of the above?

See if the carb bodies are wet.  For some reason,
the pot metal that the carbs are made of tend
to warp over time.  Saw it all the time in my days
of working on Rochester and Holley carbs, and
it happened on my GT4's Webers as well.  A
carb overhaul may be in order, which will need
to include truing up all the surfaces (hint:  use
a really big ass file....).  That fixed the gas smell
on my car.

Hans.

On Mon, Sep 26, 2011 at 11:57 AM, Brian Keegan <bks281 [at] hotmail.com> wrote:

Yo Doug,

Did you recently fill the car up completely? Have you noticed any seepage or stains around the fuel tank sending unit

on top of the L/H tank? Perhaps the rubber gasket needs to be replaced?

Brian

 

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From: dnt [at] dock.net
Date: Mon, 26 Sep 2011 11:49:01 -0700
Subject: Re: [Ferrari] Fuel Smell - 308 carbed GTS
CC: ferrari [at] ferrarilist.com
To: bks281 [at] hotmail.com

 

Hi Dave ?

Replaced the fuel filler neck?  Gulp, not to my recollection and it?s been about 15years since I?ve had the car.

I sorta looked up in there but nothing jumped out at me from the engine compartment.

Is that one of those things I have to go thru the wheel well?

I did replace the hoses between each carb but the hoses on top of the passenger side fuel tank are nigh impossible to get to from engine compartment.

No hint of leakage but just thinking it through ? if it?s a mist and not a puddle ? that would equal stinko AND a nice combustible medium, eh>?

Any help is appreciated

Thanks

DOUG

 

 

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