Author Topic: anybody in the forums drill out broken idle mixture screws??  (Read 2595 times)

Offline Mr.Pontiac

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anybody in the forums drill out broken idle mixture screws??
« on: January 14, 2017, 01:02:51 PM »
 Both idle screws are broken off even with base plate, i do have a drill press but no rotary table for the correct angle. Anybody in the forums here drill them out at a reasonable cost??

Offline Ethan1

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Re: anybody in the forums drill out broken idle mixture screws??
« Reply #1 on: January 14, 2017, 02:49:25 PM »
Both idle screws are broken off even with base plate, i do have a drill press but no rotary table for the correct angle. Anybody in the forums here drill them out at a reasonable cost??

 Moved to this forum section.
Ethan

1972 Chevelle

(oo______oo)

Offline Ethan1

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Re: anybody in the forums drill out broken idle mixture screws??
« Reply #2 on: January 15, 2017, 02:05:43 PM »
Is there enough to weld a nut or screw onto the broken ends?
Ethan

1972 Chevelle

(oo______oo)

Offline 429bbf

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Re: anybody in the forums drill out broken idle mixture screws??
« Reply #3 on: January 17, 2017, 07:28:11 PM »
mr p are you any good with a welder ? cliff may take them out a different way . heres how i get them out . i find a small washer steel of course not galvanized that just fits over the screw . take your mig welder and spot the washer to the screw , let it cool a second and weld a little more , then take a small nut and tack it to the washer , while it if still hot apply canning wax to the surface by the washer , the heat will pull the wax in and lubricate the threads .if someone has bottomed them out ,the nut should still give you enough bite to get them out. fwiw

Offline Cliff Ruggles

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Re: anybody in the forums drill out broken idle mixture screws??
« Reply #4 on: January 18, 2017, 03:02:31 AM »
You will find them difficult if not impossible to remove in most cases.  They need to be drilled on center then chase the threads with a 10-32 tap.

The difficult part is drilling them exactly on center, hit and miss with that deal......Cliff

Offline 429bbf

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Re: anybody in the forums drill out broken idle mixture screws??
« Reply #5 on: January 18, 2017, 04:19:33 PM »
mr p if your not in a hurry ill try take them out for you.