Everyone,
Bill Bolton, the keeper of the tricarb register sells these. I think
that they are very similar to the originals.
He used to be on the list. Does anyone have contact info for him?
Charlie
'62 BT7 tricarb with Bolton overflow tubes
davidwjones wrote:
>Kurt,
>I think what you are describing is the fuel overflow or vent in the lids of
>the float chambers. If it were an early tricarb, there would just be a hole in
>the side if the raised cast area of the lid. Soon after, in production the
>float lid had a small diameter brass tube pressed into the vent hole. On these
>carbs there was flexible tubing attached to the brass fitting which hung down
>beside the carbs and trailed down past the heat shield, manifold and exhaust
>pipes. I have always assumed that the purpose was, in the event of an overflow
>of the bowl, to prevent the gasoline from running down over hot exhaust
>parts.
>
>I cannot describe the flexible tube in detail, as mine is an early tricarb
>that does not have it. I do know that the tubing was black, and at the top,
>near the attachment, it had some sort of internal spring. I think the spring
>was intended to keep the tubing from collapsing at the point where it bends
>from the horizontal float lid fitting and goes vertical to run down the side
>of the engine.
>
>Having had lots of fun trying to keep my tricarbs from overflowing on
>occasion, and not having those vent tubes, I can say it is VERY scary to see
>gasoline dripping off the chambers and down onto heat shield and exhaust
>pipes, especially when hot. Despite the fact that it is not correct for my
>car, I am going to put the later float bowl lids and vent tubes on mine as I
>get it running again. I'm thinking of writing to the concours committee to ask
>them to consider this as no deduction, as it is a matter of safety. So much so
>that the design was changed during the production run. -If they have not
>already done so.
>
>David W. Jones
>'62 Mk II BT7 tricarb
>Cumberland, RI USA
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