What does an A have for a carb heat shield? I wonder if you could back
the thin metal shield with some of that foil-faced underhood insulation
or header wrap material, to try to keep the exhaust heat off the carbs?
Or, I suppose you could route a cold air duct from under the bumper
somewhere (not much excess grille area in an A, I realize) that would
blow on the outside of the carbs. This would be a summer-only device,
obviously (don't want carb icing problems!).
Just wild suggestions from a B guy...
Neil Cotty had this to say:
>Barney,
>
>Thanks for the excellent description, this is the exact problem I had with
>my A before I pulled her off the road to work on her. My car is a street car
>and heading into summer here where we'll regularly experience over 100+
>degrees. In about 80 degrees, after shutoff, I was getting vapour lock.
>
>Do you have any specific solutions you can recommend before I reassemble my
>cyl head that might help this prob go away (I'm not a orig. buff,
>driveability in all conditions is what I want (would like <G> is that
>possible??).
>
>My next move is a thermo fan for traffic and an overflow bottle with
>recorvery cap. Apart from (hopefully) lowering the engine temp or at least
>keeping it consistent, I doubt whether this will solve the vaporisation
>issue.
>
>Cheers,
>Neil
>
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
|