Series 2 carb leaks fuel

[Craigegg]

Does anyone know why I have fuel leaking from around the bottom of my carb? I changed the o ring on the main jet, I’m not sure if it fits properly or maybe another issue.
Any ideas?

 

[65sunbeam]

What carb is it, Zenith, Solex or Stromberg? Photo would help ID it too....

 

[Craigegg]

They are Zenith WIA

 

[Craigegg]

 

[alpine_64]

The zeniths have a habbit of weaping fuel... Constantly.. Even in the period road tests you see it.

They usually weap from around the top plate which would run down the carb and gather at the base.

Spray carb clean all over them and brush with a tooth brush. Then see if its coming from up higher...

Could be coming from both...

 

[Craigegg]

Thank you, it seems like after I replaced the head after a valve job, little things keep appearing.

 

[Lons 62]

I have had a similar problems. It seems as if the lower carb assembly wore significantly (became looser) from the butterfly shaft's action and created a larger shaft opening. If you have shaft "play", that could be where the leak is from.

 

[Craigegg]

That makes a lot of sense, it seams to leak when the throttle open.

Thanks

 

[Lons 62]

I couldn't find the replacement parts (2 carbs, of course) for the lower carb (the butterfly body for lack of a better term) so used a two-part epoxy on the shaft to tighten things up. I don't suspect it will last forever, but it is "still working" after two warm seasons of short driving. So maybe it's a good temporary fix. Good luck!

 

[alpine_64]

If you are having issues with the shafts wearing out bernd in Germany used to do rebuild and bushing kits..

@bernd_st