carb sync fail

I have an old motion-pro carb sync tool, with the mercury capilliaries and 5mm brass adapters. Last week one of the adapters snapped while on the intake port.

I'm thinking I drill it out and heli-coil the threads. But the location is a PITA to drill and unsure how well a tiny 5mm heli-coil will work.

Any suggestions ?

Thanks

 

easy out first. it shouldnt be that difficult to remove. if it wont come easily, THEN get aggressive.

 

Hi
How did you manage to snap one off ? I only do them up finger tight as they should have a little O ring to seal it. Any way ,as Bob said an easy out should sort it as is has a hole and shouldnt be that tight. Also try a bit of Plus Gas or WD40. Don't snap the easy out !

 

Use a dremel to cut a shallow slot then use a small screwdriver to back it out.

Or, if you can find exactly the best screw driver with the smallest point size and a taper near the edge, you might be able to wedge it in and get some turning traction.

Or a hand-held drill bit might grab since, once the nut has gone, there's not much resistance to turning the screw.

Don't want to be bothered now and make it a winter project?? Fill the hole in the adaptor with JB Weld and ride on........

 

+1 on the easy out or you can try a left handed drill bit which has worked for me in the past with exhaust manifold studs