Gadgetman Posted November 12, 2016 Report Share Posted November 12, 2016 One of my short head studs is stuck in the block. I've tried double nuts, penetrating oil and heat, no luck so far. One option will be to tig weld a nut to the stud but that's the last resort. What's the best tool for removing seized studs? Link to comment Share on other sites More sharing options...
JohnD Posted November 12, 2016 Report Share Posted November 12, 2016 A stud remover tool? https://www.amazon.co.uk/Sealey-VS7232-Stud-Remover-Installer/dp/B00360YQGU http://www.ciponline.co.uk/miscellaneous-products-c64/miscellaneous-products-c445/draper-6mm-stud-extractor-model-no-yses-1-p58139/s59790?utm_source=google&utm_medium=cpc&utm_term=draper-6mm-stud-extractor-model-no-yses-1-dra58708&utm_campaign=product%2Blisting%2Bads&gclid=CjwKEAiAmJvBBRDKpP724LigwngSJAAYRJXBRqM7NFinIAXBYLFSHz7k286qCdeElhs5xBsJRZ3OFBoC9Pjw_wcB neither exactly break the bank. John Link to comment Share on other sites More sharing options...
Gadgetman Posted November 12, 2016 Author Report Share Posted November 12, 2016 Thanks JOHN. I've seen those types but not tried them hence the question " what's the best tool" Cheers Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 12, 2016 Report Share Posted November 12, 2016 https://www.machinemart.co.uk/p/tool-connection-tc3986-impact-stud-extractor/ had one of these for years, more ££ but withstands amazing forces used this on dougs stuborn GT6 studs my 330 lbft impact wrench normally wins but we had to use a 3 ft breaker bar to shift the sods with both of us on the hernia test gee whizz tight or what !!!! one wonders how a 7/16 stud can be so determined to stay put pete Link to comment Share on other sites More sharing options...
steveweblin Posted November 12, 2016 Report Share Posted November 12, 2016 are the best in my experience - you can use a lot of force . The other style will fail if you use a lot of force because the stud is stuck in the head. I was recently dismantling an old GT6 engine and used a draper style which broke when the bearing inside forced the other component inside to change shape and stop gripping. Link to comment Share on other sites More sharing options...
steveweblin Posted November 12, 2016 Report Share Posted November 12, 2016 https://www.machinemart.co.uk/p/tool-connection-tc3986-impact-stud-extractor/ had one of these for years, more ££ but withstands amazing forces used this on dougs stuborn GT6 studs my 330 lbft impact wrench normally wins but we had to use a 3 ft breaker bar to shift the sods with both of us on the hernia test gee whizz tight or what !!!! one wonders how a 7/16 stud can be so determined to stay put pete Pete style impact extractor One wonders why the stud did not break under that sort of attack. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 12, 2016 Report Share Posted November 12, 2016 Its was certainly attacked , and it certainly didnt wreck the studs , the grip on the short exposed thread took some serious indentation we began to wonder if the engine was coming out with them, it makes little sense but one heck of a crack when they let go, all were the same , none were corroded, all looked good as new, and no there were not re used Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 12, 2016 Report Share Posted November 12, 2016 Wot Pete says is true, I know, I was there! I had previously tried the Sealy tool, https://www.amazon.co.uk/Sealey-VS7232-Stud-Remover-Installer/dp/B00360YQGU lent by a neighbour, I had no success with it. It bites the stud thread on one side only and slips, where as, Pete's impact extractor bites on three sides and won't let go. Link to comment Share on other sites More sharing options...
DerekS Posted November 12, 2016 Report Share Posted November 12, 2016 Have you tried tightening it down first? Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 13, 2016 Report Share Posted November 13, 2016 Dereks idea often works............ in Dougs case the engine would be out on the drive before it let loose we didnt have enough people to attempt a tighten ha ! even after a nice lunch Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 13, 2016 Report Share Posted November 13, 2016 I'm told tightening works, particularly with studs as they are not supposed to be very tight in the block and so can take a little more. There is no torque for stud to block tightness in the manual and I was told by some to only do my new studs finger tight! I suspect the problem with mine was the re-bore I had done 30 years ago. I'm guessing the studs were taken out to facilitate the re-bore and put back far too tight. This can easily damage the block, I think JohnD has that T shirt? So Gadgetman, when you put them back, Pete told me "Just nip them in". Link to comment Share on other sites More sharing options...
JohnD Posted November 13, 2016 Report Share Posted November 13, 2016 Indeed, one block ruined by an under-reading torque wrench, so nip them up! The TR manual cites 60lbs-ft, and my wrench was adding 30% to that. And yes, try to turn the stuck bolt/stud both ways, tighten/loosen. The movement may be small at first, but work it, all the way out. It's like using a tap - the swarf must be cut out by a reverse turn to continue, else it gets jammed. Like swarf, there is 'stuff', corrosion or whatever in the threading, and to and fro turning will help redistribute it. If the bolt/stud starts to squeal as you turn it, STOP! Reverse some way, lubricate, continue with the to and fro outwards. The squeal is a sign of binding, and if you continue the bolt may fail - possibly again! John PS and check your torque wrench every year! Link to comment Share on other sites More sharing options...
Gadgetman Posted November 13, 2016 Author Report Share Posted November 13, 2016 Thanks all. I had already tried tightening then undoing but no luck so Amazon have delivered me the tool Pete recommended. I will blow torch the area first before I let rip with that in the impact gun..... Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 13, 2016 Report Share Posted November 13, 2016 Fingers crossed pete Link to comment Share on other sites More sharing options...
steveweblin Posted November 13, 2016 Report Share Posted November 13, 2016 Very strong grip - had to mount in a vice and hit it to get it to let go of the stud. The black wheel part had bit right into the stud. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 13, 2016 Report Share Posted November 13, 2016 Seems studs are giving troubles and strife Who wants to be a stud !! pete Link to comment Share on other sites More sharing options...
Clive Posted November 14, 2016 Report Share Posted November 14, 2016 Just a thought,but have you tried hitting the stud? Not sledgehammer, but a medium hammer and light (ish) tapping on the end? I find tapping is a really useful aid to undoing difficult nuts/bolts/studs. And not just one hit, it needs a lot, but nothing hard enough to cause damage. I would then heat and try the extractor. Maybe a few hot/cold cycles may help? Link to comment Share on other sites More sharing options...
Gadgetman Posted November 24, 2016 Author Report Share Posted November 24, 2016 The stud is out..... I used the Laser Tools extractor Pete recommended with a impact wrench but before hand I made a dam out of plasticine and filled it with penetrating oil and left it to soak for 48 hrs. With a few lbs ft (or NM for you metric types) from the impact wrench out it came! Thanks for your help guys. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 24, 2016 Report Share Posted November 24, 2016 Glad it worked they are a good bit of kit You can get spares for those extractors if ever needed I burst a jaw , and cheap to replace with new springs and circlip like all, chucks keep them clean and oiled pete Link to comment Share on other sites More sharing options...
JohnD Posted November 25, 2016 Report Share Posted November 25, 2016 Thanks for feeding back. All the advice in the world is useless unless we know what works. John Link to comment Share on other sites More sharing options...
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