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Canadian Poncho Homepage -> Canadian Poncho -> Hillar's General 65-70 Full Size Forum -> Gas odor question
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Neilvermilion


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Gas odor question
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Hey there. So I'm driving my "new" Parisienne pretty often now and can't help but notice strong gas odor after I park the car in the garage. Seems the smell comes from engine bay. I can't find any drops on the floor. Odor is pretty dense at first and then it's not that strong next day, but doesn't seem to go away completely even after a few days. So I'm wondering, if that's normal and that's what they call afterboil? Or something I should be worrying about?

That's my first driveable  classic car:)

Thanks.

IMG_20240314_131813.jpg



-- Edited by Neilvermilion on Sunday 17th of March 2024 10:27:22 PM

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1965 Parisienne Custom Sport

Burlington, ON
4SPEED427


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Do you know what carburetor it is? Is it a Quadrajet?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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Neilvermilion


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Edelbrock, not sure which one yet. Will take a closer look.

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1965 Parisienne Custom Sport

Burlington, ON
4SPEED427


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The reason I ask is because Quadrajets have a problem with dripping into the engine after it's shut off. The plugs in the bottom of the fuel bowl leak raw fuel into the intake.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
DonSSDD


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If its an edelbrock, a Carter AFB knockoff, it shouldnt stink like that, my AFB never smells that much unless flooded.

Next time you drive it, after parking it, immediately remove the air cleaner and look down the carburetor, see whats going on there and also around the carburetor base on the intake. You may have too much heat under the carburetor from the choke crossover and need a carburetor spacer.

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic
seventy2plus2


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Please post a photo of the engine with the air cleaner removed. It might help identify the problem.

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CdnGMfan


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Edelbrock also made spread bore carbs, a continuation of the Quadrajet and a bolt-in replacement.

In '65 I think the 250-horse 327 used a Carter WCFB while the 300-horse used a larger Carter AFB as really the only difference (besides dual exhausts).

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1965CS


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I have that same problem with a Holly performer carb. It helps to park it outside for a while to let it cool off a bit before parking in the garage. Still have to leave the door open with a fan on for half an hour.



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Neilvermilion


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Seems it's a 1406.

IMG_20240318_154039.jpgIMG_20240318_154028.jpgIMG_20240318_154014.jpgIMG_20240318_154004.jpg



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1965 Parisienne Custom Sport

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seventy2plus2


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That is an Edelbrock version of a Carter AFB.

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seventy2plus2


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As an aside, it looks like the vacuum line to your distributor is coming from the carb baseplate (non-ported). It should come from a ported source higher up on the carb.

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70 2+2 convertible
70 2+2 hardtop
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