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Autolite 2100 mixture screw snapped

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StarDiero75
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Autolite 2100 mixture screw snapped

Post #1 by StarDiero75 » Mon Dec 24, 2018 1:13 am

Howdy guys,

I got an autolite 2100 off a 66 289 with a 1.08 venturi. The carb tag says its a 72 carb. But anyhow, everything was seized and i got it all working smoothly. I tried to remove one of the mixture screws and it snapped. The other one came out fine. I'll be using an easy out but i gotta buy one first.

My question is, does it share the same mixture screw as the autolite 1100? I'm having a hard time finding a screw with the same length. Mike Carbs has a 1.466" for the 2100 but mine is a little shorter than that. Is that ok? I just don't want to start buying things and not need them.

Thanks,
Ryan
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

CZLN6
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Re: Autolite 2100 mixture screw snapped

Post #2 by CZLN6 » Tue Dec 25, 2018 11:40 am

Howdy Ryan:

Merry Christmas. That's a new one on me. I've looked at lots of mixture screws from both 1100s and 2100s individually as I rebuild each carb. I have never done a comparison. My first guess is probably not. I'm not at home now or I'd go do a comparison.

FYI- there is a stamped code on the foot (mounting hole part of the base). That code may help you when ordering and/or identifying what you have.

I'll be interested to know what you find out so let us know.

Adios, David
co-author of the Falcon Performance Handbook
http://www.falcon6handbook.com/

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chad
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alu screw snapped off in carb

Post #3 by chad » Tue Dec 25, 2018 2:24 pm

"... easy out..."
I don't recommend that product (last choice).

weld-a-nut or weld-a-stud is 1st in the list (even alu)...

Gota pic?
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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StarDiero75
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Re: alu screw snapped off in carb

Post #4 by StarDiero75 » Wed Dec 26, 2018 2:21 am

chad wrote:"... easy out..."
I don't recommend that product (last choice).

weld-a-nut or weld-a-stud is 1st in the list (even alu)...

Gota pic?

It broke flush with the carb. I don't have the equipment to even attempt anything other than the easy out. Next step would be to bring it to the machine shop
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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StarDiero75
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Re: Autolite 2100 mixture screw snapped

Post #5 by StarDiero75 » Wed Dec 26, 2018 2:23 am

CZLN6 wrote:Howdy Ryan:

Merry Christmas. That's a new one on me. I've looked at lots of mixture screws from both 1100s and 2100s individually as I rebuild each carb. I have never done a comparison. My first guess is probably not. I'm not at home now or I'd go do a comparison.

FYI- there is a stamped code on the foot (mounting hole part of the base). That code may help you when ordering and/or identifying what you have.

I'll be interested to know what you find out so let us know.

Adios, David

I'll check for the code, thanks!
Yeah I was just curious. I would think it could make finding a replacement screw easier

Will do!
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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chad
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Location: Lawrence Swamp, S. Amherst, MA

screw snapped in alu piece

Post #6 by chad » Wed Dec 26, 2018 1:30 pm

4 me that sz easy out just 'buggers' the whole thing up.
Just one guy's solution?: center punch, progressive drill sz to just below threads,
use pick to chip off thread chips frm wall's threads. Some times a re-tap to clean up.
sometimes for new bigger ID, sometimes none of this just exact same sz screw. The tig
(& mig) here can do alu & often a nut tacked thru its center to the broken stud duz it (Y?
cuz the heat of the weld loosens & the new nut is attached so a surface to wrench on).
Good Luck, I enjoy problem solving (& even "over engineering". I cut our cord wood use in 1/2
while keepin the same ambient temps buy futzin around w/'bosses' wood stove).
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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woodbutcher
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Re: Autolite 2100 mixture screw snapped

Post #7 by woodbutcher » Thu Dec 27, 2018 1:10 pm

:hmmm: If you try the drill it out route,you might be well served to get a set of LEFT HAND drill bits.They might be a bit spendy,but can save a lot of headaches down the road.Any quality tool supplier should be able to supply them.
Good luck.Have fun.Be safe.
Leo
"People never lie so much as after a hunt,during a war,or before an election".
Otto von Bismarck

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Econoline
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Re: Autolite 2100 mixture screw snapped

Post #8 by Econoline » Fri Dec 28, 2018 2:16 am

The problem with drilling it out is that if you drill through you will ruin the carb You'll have to be very careful and mark the depth on the bit with some tape and only drill deep enough to get just past the threaded bit.
It ain't gonna fix itself

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StarDiero75
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Re: Autolite 2100 mixture screw snapped

Post #9 by StarDiero75 » Fri Dec 28, 2018 2:33 am

I picked up some screw extractors from Harbor Freight. I've never been in one before, i swear I'll go broke if i go back in there haha.

I'll give the small one a try on sunday probably. We shall see how it goes. I really dont want to toss the carb since its a 1.08. I hate having to buy more crap.
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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chad
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screw extract, alu housing

Post #10 by chad » Fri Dec 28, 2018 12:56 pm

"...hate having to buy more crap..."
hear ya there. Also on a HF visit.
TOOLS aint crap, tho. All ways enjoy nother tool.

tack,
reverse drill bit,
progressive dia drill~
'easy out' 6th or 7th

have fun
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

drag-200stang
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Re: Autolite 2100 mixture screw snapped

Post #11 by drag-200stang » Sat Dec 29, 2018 6:06 pm

Frankly I would just work around it...It may be perfect just as it is set.
66 Mustang Coupe
200 turbo w/lenco 4-spd
stock adj. rockers, stock timing set, ARP studs
best 1/4 mile ET 9.85/best mph 139 on 8 lbs progressing to 15 lbs boost
Went 9's when 10's was fast.

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StarDiero75
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Re: Autolite 2100 mixture screw snapped

Post #12 by StarDiero75 » Mon Dec 31, 2018 12:22 am

drag-200stang wrote:Frankly I would just work around it...It may be perfect just as it is set.

Its screwed in perty far. Im just gonna ditch it. Ive started hitting the carb body with the drill and i think its time to quit.
--1965 Ranchero w/1966 200 and 3.03 column shift, 8" rear 2.8 (Yes I know the gearing sucks), weber 32/36, CRT Performance HEI.
--1961 Studebaker Lark VI, OHV 170 l6 in the process of being resurrected. But it lives
--Creator of the only Weber 32/36 conversion video.

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chad
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Posts: 4300
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

autolite 2100 mixture screw snapped

Post #13 by chad » Mon Dec 31, 2018 8:09 am

sender my way
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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