[beertracker]

What's the secret to removing Q-jet idle tubes? I have new idle tubes drilled to .037" but can't get the old ones out. I haven't destroyed the carb yet!

Also where can I fnd a .037 drill? I have never seen one smaller than 1/16"?

BT

[TommyK]

Take a punch which is the diameter of the idle tube, not the collar but the tube itself (.090?) and gently tap the tube down about 1/16". Take a drywall screw and cut the tip off it. Gently thread the screw into the collar with a screw driver until it "bites" on the brass collar. Take a micro torch and gently heat the casting for 30 seconds at the idle tube location. Using a pair of side cutters grab the screw at the base and gently pry up. This will pull the collar and tube right out of the casting.

Pin drills can be found on Ebay or at Harbor Freight.

[beertracker]

Thanks for the info. The tubes came right out.

bt

[cobalt327]

Originally Posted by beertracker

Also where can I fnd a .037 drill?

You want a "numbered" drill bit set. They go from #61 to #80 (smaller number = bigger diameter), cost ~ $10-$15 including the pin vise. 0.037" = #63 bit.

Numbered bits aren't meant to be used in a power tool, instead a "pin vise" is used to hold and turn the small bits by hand.