Triumph Repair: Stromberg Carb, float bowl, ring seal

Question
'79 Spit with Stromberg 150 CD carb. When I fill dashpot I noticed oil in the air intake. Where am I leaking from? Diaphragm or is there an o-ring seal? Also I noticed a lot of Strombergs have a float bowl plug, mine does not, is this just another version?

Answer
Hi Steve,

If you have an adjustable needle in your piston, you do have an "O" ring on the adjusting screw that the 3mm Allen wrench fits into. If you don't have a large round plug in the very bottom of your float bowl be happy as they were plastic with an "O" ring that would leak also.

Howard