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10-18-2012, 10:29 PM | #1 |
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Removing flathead studs?
If I was gonna use heat to take out the head studs in my 59A flathead block. Where would i concentrate the heat so I don't wreck the block? Also would I use aceteline or will MAP gas work just as well?
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10-18-2012, 10:42 PM | #2 |
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Re: Removing flathead studs?
I used a propane torch around the base and some wax to seep down into block to help. I only did a few to mount an offset generator. Did this at an engine machine shop because they recommended it. It was still difficult. I have to do all of them in the future to install the finned heads that need longer studs and I'm not looking forward to it.
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10-19-2012, 07:16 AM | #3 |
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Re: Removing flathead studs?
Snapon used to make a tool to remove head studs - I know my old engine builder had one. It was kind of like a pipe wrench in design, on a 8-10" extension, and was able to be put on a 1/2" rachet. That and a breaker bar at the end of the ratchet, with a little Kroil or something similar having been applied an hour or so before, usually got the tough rusted in ones moving again for him. Grabbing them right at the deck, and not at an angle to the stud, and twisting them tight first, was the trick in not breaking the stud.
I watched him do a block that looked like a lump of rust and he got every one of them out as described. |
10-19-2012, 07:48 AM | #4 |
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Re: Removing flathead studs?
I was told by a friend that he would heat and soak with penetrating oil hours earlier and then weld a nut onto the stud and the heat from the weld would be much hotter than a torch. this would allow him to put a socket onto it and begin loosening before it cooled.
The stud and nut are destroyed but easier than breaking and drilling.
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10-19-2012, 07:48 AM | #5 |
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Re: Removing flathead studs?
I've got these. Don't know how old they are, but I've seen them swap meets once in a while. I've never broken a stud using them. Never heard of the wax and heat method. I'll have to try it next time. If you need heat the propane should be more than enough.
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10-19-2012, 07:53 AM | #6 |
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Re: Removing flathead studs?
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10-19-2012, 08:40 AM | #7 |
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Re: Removing flathead studs?
Iv removed hundreds this way and rarely break one….its also the fastest way.
1. Soak back side of studs w Gibs for a few days. 2. heat around base of stud 3. Use a standard pipe wrench to get them lose … then spin it out w vice grips. You will find most stud tools slip and interfere with the next stud / are to big. Stud removers are NOT! designed for rusted in studs ... they are for removing and saving marginally tight ones. You want to break a bunch of them? …. Use a stud tool and better yet put an impact on it. Last edited by 296 V8; 10-20-2012 at 09:41 AM. |
10-19-2012, 11:38 AM | #8 |
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Re: Removing flathead studs?
I had one like 41Ford1 showed in his pictures manufactured by Cornwell Tools. I used to work on marine engines and it was invaluable for removing studs. You could put a rattle wrench on it and slowly work the studs loose.
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10-19-2012, 12:27 PM | #9 |
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Re: Removing flathead studs?
Sears/Craftsman has a 1/2" stud installer/remover. Has a wheel that grips the side of the stud. It's worked for me.
I've done all of the above. Using some type of penetrant is absolute. Someone along the way posted this following tip and it has also worked for me so I'll pass it along: Before trying to remove the stud, turn it tighter just a smidge. You'll hear some crackling and other noise and then try backing them out. This turn seems to break free the bond of rust or whatever and also it to back out. It seems there is less stress going a little deeper than trying to back all the way out. I think that's the idea behind it. |
10-19-2012, 12:52 PM | #10 |
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Re: Removing flathead studs?
If all else fails there are companies that specialize in removing broken studs.
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10-19-2012, 12:58 PM | #11 |
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Re: Removing flathead studs?
if your planning a rebuild leave them, once the block is boiled they will come out easy.
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10-19-2012, 02:25 PM | #12 |
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Re: Removing flathead studs?
About 10 years ago, a buddy gave me this stud removal tool. Snap-on A-80-A.
When I used it, something inside broke…..he then told me…no problem. He gave it to the local Snap-on tool guy….tools guaranteed for life, and within a couple of weeks got it back all repaired. If they were able to repair it, they must still be available. I googled it and yep…there it is: http://buy1.snapon.com/catalog/item.asp?item_ID=632121&group_ID=675444 I’ve never had a problem with it since, works great….but the shocker was when I found it on the web, it’s pricy….$241.00. Hey…..it’s a real tool and made in the USA and guaranteed for life. Also, not a problem clearing the other studs when removing one. Robert |
10-19-2012, 02:33 PM | #13 |
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Re: Removing flathead studs?
If you are sending Snap-on lots of money...they actually have better for cheaper!
Rather than 3 rollers or the rather risky cam type, this is a full-on collet one whose operation is concentric and grips 360: http://buy1.snapon.com/catalog/item....re&dir=catalog It is similar (though larger) to the one shown in the flathead overhaul manual. |
10-19-2012, 02:35 PM | #14 |
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Re: Removing flathead studs?
Snap On makes a threaded collet stud remover that works well. A set of 3 collets and the housing costs $130. Just the housing and one collet is $100 so I got the set even though I likely won't ever need the other two sizes.
See Snap On set CG500 The included instructions say to tighten the collet to something over 200 ft-lbs. For some studs it is indeed necessary to get it that tight. Tom |
10-19-2012, 06:51 PM | #15 |
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Re: Removing flathead studs?
I've got the snap-on tool shown by Robert, above. In my opinion, it's junk. I had no trouble breaking it, trying to remove flathead studs. Only good part was... Snap-On repaired it. (and I've never used it, since)
I've also used a variation of the tool shown by 41ford1, above. I've never had any trouble with it, and it's worked on some might stuck studs. JMO... |
10-19-2012, 08:05 PM | #16 |
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Re: Removing flathead studs?
I think that all of the comments here epitomize the glamor and stigma of the flathead. In other words, removing studs is a right of passage in becoming a "flathead guy".
Try all of the methods. When it all fails, keep an old head around for it to be a guide in drilling the mother out. Then, you may have to get a timesert or some other replacement of the offending hole to make everything whole again. |
10-19-2012, 08:58 PM | #17 |
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Re: Removing flathead studs?
Two nuts tightened together ( and bottom nut gripped with wrench) will install/remove studs
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10-19-2012, 09:43 PM | #18 |
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Re: Removing flathead studs?
I am with Henry, and the stubborn ones may require a little heat and cool down.
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10-20-2012, 12:32 AM | #19 | |
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Re: Removing flathead studs?
Quote:
I used to teach all this crap in advanced machine shop and I always asked, if you break a 7/16 stud off in the hole, how do you expect to extract it with something SMALLER???? Not going to happen. There has NEVER been a stud stuck in a hole that could not be MACHINED or picked out. "Easyouts" and tap extractors are the work of the devil. I have spoken. |
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10-20-2012, 05:10 AM | #20 |
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Re: Removing flathead studs?
I soak in Kroil for about a week. Basically apply every night for a week. Then my Craftsman 1/2 stud remover works well. This work 90% of the time, but broke one off last summer. Tried to remove it myself and made it worse. I snapped off an "Easy Out" in the stud base. When I took it to the shop, he had to remove the broken Easy out and weld a bolt to the stud. Think it cost me $40, but I was stuck.
For the O/P question, I heat it up at the base but not red hot. Kroil, heat, repeat. |
10-20-2012, 08:16 AM | #21 |
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Re: Removing flathead studs?
41 Ford, would you please post the Cornwell part number if stamped on the remover. Went to their site and they have lots of removers without pictures. I think a center torque remover is superior to the std remover with one wheel and a offset hole for a pull handle.
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10-20-2012, 08:53 AM | #22 |
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Re: Removing flathead studs?
Yea 41 Ford, I did the same thing.
The part # would be great. I have the shap on style with the different thread collets. I have only had 1 ( one ) stud that I could not get out. Seems I am in the running for the one who has the most toys WINS I think if I can get one of these I will get out of the Most honerable mention category. I was just thinking isn't it the job of the forum Police to remove the flathead STUDS from this site LOL LOL THANKS Last edited by BILL WZOREK; 10-20-2012 at 08:59 AM. Reason: Added Text |
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10-20-2012, 10:56 AM | #23 |
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Re: Removing flathead studs?
The only thing stamped on the holder is - CORNWELL--PAT.APD. FOR------USA.
Each insert is stamped for size. 5/16, 3/8, 7/16 and 1/2. This set is in a red metal box. |
10-21-2012, 04:29 AM | #24 |
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Re: Removing flathead studs?
thankx for all the input guys! I have all winter to tray all these methods
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10-21-2012, 07:41 PM | #25 |
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Re: Removing flathead studs?
Best to NOT heat the stud or Bolt.
Warm the iron block [ i leave mine next to the shop heater for an hour before hand[ . you really need the older style- cam-offset stud remover that has the nurled edge on the roller. if it wont budge & you then finally break it off , carefully grind it level [dont mark the block] & start drilling accuratly from centre, starting with a Tungsten 3/16 drill & then one drill size at a time untill close [ use an engineers tap & drill chart-guide]. Finally ,use a new 7/16 nc tap to finish. If you are accurate, & lucky, the new tap will chase the old stud threads out. However you go about it , just be patient . |
10-21-2012, 08:01 PM | #26 |
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Re: Removing flathead studs?
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10-21-2012, 08:36 PM | #27 | |
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Re: Removing flathead studs?
Quote:
R |
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10-21-2012, 08:37 PM | #28 |
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Re: Removing flathead studs?
Whatever method you try use a tee handle rather than a breaker bar when you turn from one side you are putting a side ways torque on the stud and that is what breaks it. I have a 1/2 inch drive craftsman tee which I made extension handles from a broom handle so my hands are about 3 feet apart. I have no class so I use cheap harbor freight stud removers and have not broken any since using this method. Before when I broke one I mig welded a nut to the broken studs and they all came out. Boiling the block before removal is the best but sometimes not possible.
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10-21-2012, 09:30 PM | #29 | |
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Re: Removing flathead studs?
Quote:
Drill 'em out When it gets to that stage I blow 'em out with the gas-axe. Clean up the threads and voila! Good as new. |
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10-21-2012, 09:37 PM | #30 |
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Re: Removing flathead studs?
I have had 100% success:
Heat stud with an Oxy/Act torch, as it cools, use either wax or WD 40 (WD 40 will smoke). Let cool and use your stud puller/vise grips/whatever. It works every time |
10-22-2012, 01:43 AM | #31 |
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Re: Removing flathead studs?
When using the 'gas axe' to burn the broken stud out, first drill a hole (1/8"-3/16") clear through the stud so the slag won't blow back at you but instead will blow on down into the water jacket. Don't wave the tip around, just heat the stud next to the hole you drilled. When it gets red, hit the oxygen lever and stay on it until all of the stud is burned out. You can move the tip around in the hole and even aim at the block threads to burn out all the crumbs (just keep it moving). Since you hit the oxygen lever before the block threads got red, you will not hurt them (ever try to cut a cold piece of metal by hitting the oxygen lever right away? Doesn't work! The extra oxygen just cools the metal unless it is already red hot, and then it actually burns, not melt).
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10-22-2012, 11:40 AM | #32 |
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Re: Removing flathead studs?
And on the S-o collett, note the instructions; it gets tightened REALLYTIGHT at the gripping part, at which time that stud is going to be packing to leave.
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10-22-2012, 01:03 PM | #33 |
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Re: Removing flathead studs?
There was an old post done several years ago about welding a nut to broken studs and removing them while still hot. I tried it and had great success with the method,I'll try to find the opst in the archives.
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10-22-2012, 01:19 PM | #34 |
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Re: Removing flathead studs?
Here ya go! http://www.fordgarage.com/pages/studremoval.htm
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10-22-2012, 03:44 PM | #35 | |
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Re: Removing flathead studs?
Quote:
I've done removed a number of broken studs using this method and never had an issue. Work each time I used it. |
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