How can I remove an invector plus choke that won’t budge? Tried a lot of tool but still no deal. Any solvent ideas that could help? Need a miracle .
- Thread starter TUBBY1
- Start date
CopperClad
Member
Kroil and patience
1KPerDay
Member
This. And heat cycles using a carefully wielded torch or a heat gun.
gwpercle
Member
The best penetrating oil is a DIY mix of conventional Automatic Transmission Fluid ( I use GM compatible ) and Acetone ... a 50 / 50 mix ... Now here is the important part .... a choke has a lot of fine threads and it takes any penetrating oil a long time to work it's way all through those fine threads ...Soooo
You have to rig up a way to "Soak" the choke in the ATF-Acetone mix for several days ... a week or even a month ... so it can do it's work .
If you can't soak the choke ... apply the penetrating oil in morning and at night so penetrant can get down into the threads ... keep applicationsd up as acetone carrier will evaporate ... test after a week and see if it budges ...if not ... keep soaking untill it does . Those fine threads can be a bear ... but don't use too much Force ... you will break something ... long soaking / applications and moderate force ... you wont break it !
Gary
You have to rig up a way to "Soak" the choke in the ATF-Acetone mix for several days ... a week or even a month ... so it can do it's work .
If you can't soak the choke ... apply the penetrating oil in morning and at night so penetrant can get down into the threads ... keep applicationsd up as acetone carrier will evaporate ... test after a week and see if it budges ...if not ... keep soaking untill it does . Those fine threads can be a bear ... but don't use too much Force ... you will break something ... long soaking / applications and moderate force ... you wont break it !
Gary
entropy
Member
Soak it patiently in Kroil; after a few days, apply heat while using a quality choke tube wrench.
I would use a universal choke tube magna tip or a hollow ground driver bit (both with hex head drives) mounted in a cordless impact driver. It's easy to fabricate a perfectly fitting driver to the slots in the choke tubes. Secure the barrel in a padded vise. Make sure the choke tube slots are clean for maximum engagement of tool bit.
The universal choke tube is available from Brownells. It has the round tip secured with a roll pin; one could easily fabricate a cylinder from round stock with just the right width for the choke tube slots at hand, center drill for the roll pin and make a whole gauge / shotgun specific set.
Coin slot bits would work as well. Get a whole set from aviation supplier Yardstore.com; inexpensive.
Using aluminum / copper anti-seize after cleaning with each shooting session would prevent this problem from being a thread topic.
This lad had the right idea, but a little too Flintstone style for my liking. Apparently was not aware of the magna-tip bit.
https://www.youtube.com/watch?v=Lxc3kURddFI
The universal choke tube is available from Brownells. It has the round tip secured with a roll pin; one could easily fabricate a cylinder from round stock with just the right width for the choke tube slots at hand, center drill for the roll pin and make a whole gauge / shotgun specific set.
Coin slot bits would work as well. Get a whole set from aviation supplier Yardstore.com; inexpensive.
Using aluminum / copper anti-seize after cleaning with each shooting session would prevent this problem from being a thread topic.
This lad had the right idea, but a little too Flintstone style for my liking. Apparently was not aware of the magna-tip bit.
https://www.youtube.com/watch?v=Lxc3kURddFI
Last edited:
entropy
Member
I have a neat tool at work for this. It's two halves screwed together. Works like a barrel band swivel stud. One screw sets the width, the other provides friction to the walls. I used it on a Win. 1200 Winchoke that I couldn't budge with the Winhook. It's designed for tubes with no slots.
243winxb
Member
May help to know what lube, if any, was used when choke was installed?
My Browning Citori ejectors were glued in by Break Free CLP. Soaking with WD-40 broke them loose. All 4 gauges.
Photo of said tool please.
N555
Member
Yeah soak for at least several days to forget about it and reattack at a later date but be sure to add heat when you do.
entropy
Member
entropy
Member
This shows the two screws better.
entropy
Member
Actually I stuck an old ruined punch through the hole in the top and used it to turn the collet.
Oldschool shooter
Member
The best product I have ever used is called Krax-it. It is made by Hapco. I recently used it on an inline breechplug that has been stuck for several years. Sprayed it, let it sit for a while, sprayed it again and let it sit overnight. It turned right out the next day.
Lo-Profile
Member
I've had really great results using a old Remington choke wrench with a breaker bar. Put barrel in a vice (I use thick leather to protect it), then tap, NOT HIT, the breaker bar with a hammer.
Sometimes tightening it a bit helps loosens it as well. I always use a barrel thread chaser on the threads after.
You can soak it overnight with the penetrating oil of your choice.
Sometimes tightening it a bit helps loosens it as well. I always use a barrel thread chaser on the threads after.
You can soak it overnight with the penetrating oil of your choice.
Jim Watson
Member
Instructions for entropy's tool say
Brownells Stuck Choke Removal Tool is a heavy duty, expandable wrench for use when your normal choke removal methods fail. It allows removal of chokes stuck due to over-tightening, rust or dirt. Although the choke may be damaged during removal, careful use of this tool should not harm the barrel.
Brownells Stuck Choke Removal Tool is a heavy duty, expandable wrench for use when your normal choke removal methods fail. It allows removal of chokes stuck due to over-tightening, rust or dirt. Although the choke may be damaged during removal, careful use of this tool should not harm the barrel.
Most likely the damage will occur due to compression / distortment of fine choke tube threads, from the expansion of the Brownells' tool.
I was tinkering in the shop today pondering yet an alternative solutions to driving the choke tubes out using a hex drive but internally a precision drill rod is slotted to fit about a dowel pin (replacing the 5/32" tommy bar for the Benelli's). The Benelli choke wrench already has 4 precision lugs to engage the choke tube, no need to re-invent the wheel there, so just convert the tiny t-bar to a robust internal engagement driven by a T-bar or impact driver.
The Browning universal choke tube wrench has 0.150" thickness of tool steel. I fabricated a hex driver for this wrench, will cross-drill the holder thru the wrench and secure it with a screw so it can't move during engagement with an impact wrench.
I hope to never have such a poorly maintained shotgun as to deploy these tools.
Photo tour.
