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PostPosted: Mon Apr 25, 2016 3:04 pm 
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2 BBL ''SuperSix''

Joined: Tue Nov 10, 2015 1:58 pm
Posts: 19
Car Model:
I have a small but very worrisome fuel leak which seems to be from the bowl of the carb but may be at fuel inlet. The car does require a lot of cranking if it sits for a day or so. Is it usual for the intake manifold around the carb to look moist. I don't see anything actually dripping but the intake itself is moist. I have tried tightening the bowl screws. The carb has been rebuilt within the last couple of months. It also appears that maybe the leaking is around the accelerator pump on the top of the bowl? The car is a 1964 Valiant 225 with automatic trans.
Thanks for any helpImageImage


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 Post subject: Added pictures
PostPosted: Thu Apr 28, 2016 12:14 pm 
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2 BBL ''SuperSix''

Joined: Tue Nov 10, 2015 1:58 pm
Posts: 19
Car Model:
Added pictures to original post - any way to copy more than 1 picture at a time from photobucket?


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PostPosted: Thu Apr 28, 2016 12:33 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13281
Location: Fircrest, WA
Car Model: 76 D100
That is a BBS, not a BBD, and it is probably leaking from the throttle shaft area.

_________________
Casually looking for a Clifford hyperpak intake for cheap.


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PostPosted: Thu Apr 28, 2016 1:04 pm 
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EFI Slant 6
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Joined: Sat Jun 09, 2007 7:20 am
Posts: 292
Location: Portland, Or.
Car Model: '64 Valiant Convertible
Mine regularly puked out the top of the accelerator pump shaft.

Probably related to the heat soak issue of parking a hot car and boiling the fuel in the float bowl.

Mine always required long cranking after sitting, as well.

I never tried a heat shield, but they gotta be of some benefit. If you try one, be sure to post results.


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PostPosted: Thu Apr 28, 2016 1:12 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13281
Location: Fircrest, WA
Car Model: 76 D100
Quote:
I never tried a heat shield, but they gotta be of some benefit.
Absolutely. Run a thick carb base to manifold gasket, install an aluminum or phenolic shield (you will have to make your own), do the fuel line mod and reroute the fuel line over the valve cover instead of up the front of the engine by the exhaust manifold, and heat soak problem will be lessened.

_________________
Casually looking for a Clifford hyperpak intake for cheap.


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