[TR] Carb woes

[Brian.L.Jones at gsk.com]

John,

Remover the lid to the float bowl and check if the float for leaks: remove 
it and shake it to see if you can hear anything inside. I believe you may 
be able repair a leak with solder, if you can find it, or replace it with 
new. If I heard fuel inside a float I would submerge it in fuel and 
squeeze to it find bubbles of air to locate the hole. Warm the float 
gently (for example, by a light bulb, in a safe place for a while) to 
evaporate fuel, then solder to seal.

Check the setting for the fuel valve actuator: turn the lid upside down, 
and with an appropriate diameter dowel or drill bit, adjust the fork that 
controls the valve to the diameter of the dowel, when the valve just 
closes. See adjusting the fuel level in this link below (instructions from 
SU tool kit). The level of the fuel is critical to the reliable operation 
of the carburettor. Its a fiddly task that is easier to imagine than do, I 
found.

http://www.mgaroadster.co.uk/SU%20Carburetor%20Tool.pdf

Check the valve operates as it should, replace as required.

I would go ahead and install your rubber seals at the banjo joint at the 
bottom of the carbs. If you have the right parts assembled in the right 
order, it should seal OK.

Brian