Idle jet

[vern hodgson]

What is the best procedure for removing a broken off idle jet?

[Will N]

If all else fails, you could soak the carb in ammonia for several days. Ammonia dissolves brass. Of course, everything else brass would dissolve too, like the passageway plugs. But then you'd be able to clean out those passages really well, and you's have to replug them.

[Ed in Maine]

I'm assuming it is a Zenith carb you can put the casting in an oven and bake it at 250F for an hour and then use an easy out.

[johnbuckley]

Sorry to be a bit of a pessimist but although the above methods (add to which a blowtorch) sometimes work, be prepared to buy a replacement upper body.

[vern hodgson]

Originally Posted by vern hodgson

What is the best procedure for removing a broken off idle jet?

Cancel that query, just read Tom Endy article on Ford Zenith carb restoration, and carb dis-assembly. Heat casting area cherry red, plunge into cold water, then I sprayed some pb blaster, let it cook for 1/2 hour. Then preparing to drill it out and it spun right round and came out with finger tips. Great to see something work as it should!!

[Tom Endy]

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Keep in mind that the idle jet is a small pipe thread, so don't run a straight tap into the threads.


Tom Endy