I have recently taken ownership of a Ransomes Marquis which has the F12 Sloper engine fitted. When running at idle, a lot of petrol is leaking from the carb. First thought is a sticking float, but are there any other possibilities before I get started? I'm planning on removing the carb for a complete strip and clean using the US tank. I've downloaded the F12 sloper engine manual from the site so I can see all the parts of the carb. Taking the float chamber cover off shows the following
I have a feeling the solder may not be 'factory'?! If there is a clip which clips around the notch in the float needle, the only reason I can think that someone would have soldered the clip to the brass float, is to stop the float from being able to move/slide on the float needle, perhaps due to wear in the float body? I can't see the clip on the parts diagram for the carb though?
The dings in the top of the float would perhaps indicate that the float is sticking and someone has been striking the top of it previously to free it up?