Carb jets are stuck

I have eight Autolite 2100 2 barrel carbs that i am rebuilding. They have one thing in common: the jets and the seat for the gas inlet are VERY difficult to remove (they are over 40 years old). The seat is round and in a corner so that it difficult to grab onto. I am concerned about stripping the threads out if i get too rough. Any suggestions are welcome. Many thanks to all......jack

 

Liquid wrench. The real stuff is still available.

maybe pop them in a hot oven for a little bit and try to remove the parts while they are still hot? Once they start to come out wiggle them in and out a little at a time to break up an corrosion and try and keep the threads clear.

 

You could try a soldering iron held on the jet to heat it up. May take a few heat/cool cycles to break it loose.

Sounds crazy but a 30 minute boil in lemon juice does wonders on carbs.

 

pure lemon juice or watered down?

 

Pure does a better job faster. 30 minutes.
50% mix needs to boil about an hour and a half for close to but not the same results.

As it boils, it needs topped off due to evaporation. If you top it off with water the once 100% gets continually diluted further and further.

 

Just in case anyone is interested (or cares): a hand-held impact driver (Lisle 29200 or equal.) does the trick every time. Just twist it in the unscrew direction and wack it with the palm of your hand or a light tap w/hammer. no heating or soaking required. so simple, just like me...jack

 

Know anybody with an ultrasonic cleaner? Toss them in there for a while then try them.

 

Yep, make sure you use the wide screwdriver blade.
If you don't have an impact driver, use a screw driver. Twist it while you bump the end of the handle with a small hammer.

 

Well that is not stuck.