How To Remove LS Exhaust Manifold Bolts without Breaking Them | Vortec

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  • @larrytemen4789
    @larrytemen4789 Год назад +56

    I’m not sure why this video popped up in my suggestions. But having done at least 30-35 header swaps on LS motors, I can remove them all without snapping any in about 15 min. (Engine out of vehicle) Step one, spray with some kind of penetrating oil. Let sit for a day. Step 2, air hammer with a pointed bit and hit straight in the center of stud or bolt for about 2-3 sec ea. Step 3, tighten ea bolt about 1/8 of a turn. Step 4, 1/4” air ratchet and loosen all the way out. The air hammer shocks the bolt and any rust buildup inside the heads. Tightening the bolts stretches them slightly and prevents pulling threads out of aluminum heads. Learned this trick from a machine shop.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +5

      Very cool, thanks for the info!

    • @joefudd
      @joefudd Год назад +7

      Liquid Wrench has those instructions on their cans and has for decades. Tap the bolt with a hammer and the vibration helps the penetrating oil to work itself in and dissolve the rust. I always start by tightening frozen bolts a bit first before backing them out. It works. Always spray more penetrating oil in with each in and out torquing to help flush out the dissolved rust in the threads which wedges the bolt stuck.

    • @davidbennett288
      @davidbennett288 9 месяцев назад +2

      Good info, thank you

    • @MrC9Oh3
      @MrC9Oh3 9 месяцев назад +1

      Penetrating oil doesn't help at all, that's a myth. I heat them with a torch til they are glowing red and remove them with a crescent wrench. The crescent wrench allows me to get a good bite because it's adjustable.

    • @jefffrayer8238
      @jefffrayer8238 6 месяцев назад +1

      Larry is correct in everything said. Penetrating oils does help if used a few days ahead and the air hammer really helps to loosen bolt/nut and at the same time help the oil to work in. It doesn't need to hammer hard, just need the vibration. The oil also helps prevent galling between steel bolt and aluminum to save threads. Great video.

  • @joefudd
    @joefudd Год назад +14

    When backing the bolts out a bit, keep spraying more PB blaster under the bolt heads to help flush out the rust and loc tite before tightening them back in. each time back and forth it will pull out more rust and free up the bolts. Also using compressed air with a blow gun also helps displace the rust from between the threads, then apply more penetrating oil.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +3

      That definitely sounds like it would help, I will give it a try next time, I always enjoy learning new ways to tackle things. Thanks for the advice and thanks for watching!!

  • @IceRhino44
    @IceRhino44 7 месяцев назад +8

    An old fella told me that loosen and tighten trick, haven't snapped any bolts since!

  • @aaronmcdonald8423
    @aaronmcdonald8423 Год назад +6

    Very good ideas! I've got a pair of 5.3s, one in my 83 Camaro and one in my 04 Tahoe. When I did the engine for my 83 Camaro it had 2 broken ones that I got out w/my welder. The other ones I did it this exact way using both of your methods. When I re-install everything I like to use the longer size stainless studs from eBay (can't remember length but I think it was the longest ones I could find) and a ton of anti-seize on the stud. Works like a charm for removal!

  • @smokyblackjacket7215
    @smokyblackjacket7215 Год назад +8

    Oh thank you gm for making our lives so much easier lots of love 😐

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +1

      I complete agree lol!

    • @bigtimegoblin
      @bigtimegoblin Год назад +1

      @@CLASSICSAREBETTERmy dad has been a gm mechanic for 40 years and he always sais “general motors stupid comes standard” lol

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      @@bigtimegoblin Haha I haven't heard that one before, but I like it!

    • @joefudd
      @joefudd Год назад +1

      This happens with all aluminum heads that have cast iron flanged headers. Not just GM.

    • @shadowopsairman1583
      @shadowopsairman1583 8 месяцев назад

      ​@@bigtimegoblinyeah and fords still break plugs

  • @chemicalspore
    @chemicalspore Год назад +2

    I just took my LS apart and posted it on my Instagram. About how I didn't break any exhaust bolts, and then there's this video that popped up in my feed. Today

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +2

      How wild, the youtube algorithm is in control lol. Hope that your project goes well!

    • @chemicalspore
      @chemicalspore Год назад +1

      @@CLASSICSAREBETTER chewed cam and lifters

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +3

      @@chemicalspore well that is no fun at all, sry man. At least it's an opportunity to put in a hotter cam and reward yourself for the hassle lol.

    • @chemicalspore
      @chemicalspore Год назад +1

      @CLASSICS ARE BETTER nah, same cam. 222. 226. I don't want to go through tuning again.

    • @jamiegarrett3869
      @jamiegarrett3869 3 месяца назад

      ​@@chemicalspore😂

  • @jamesguralski5156
    @jamesguralski5156 11 месяцев назад +3

    Easy job when motors out! Ill do them in the truck! Looking to grab an induction heater for the bolts! Thanks for sharing. Great vid

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  11 месяцев назад

      Lol definitely easier with the motor out! Induction heater would be a lot safer than a torch with all the hoses and wiring all around. What kinda truck you wrenching on?
      I hope that your project works out great for you, thank you for watching!

    • @jamesguralski5156
      @jamesguralski5156 9 месяцев назад +2

      @@CLASSICSAREBETTER gm. 5.3 2009 silverado and a 2009 6.2 cadillac escalade ext truck

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  9 месяцев назад

      @@jamesguralski5156 very cool

  • @gregorysampson8759
    @gregorysampson8759 8 месяцев назад +2

    Real good advice. I knew these things but wasn't really thinking about this. Thanks guy!

  • @ericm493
    @ericm493 2 года назад +18

    Tighten and then loosen. Breaks the rust

  • @paybo3573
    @paybo3573 11 месяцев назад +3

    Hammer and punch works great also

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  11 месяцев назад +1

      I haven't tried that way, im curious, how do you get them out with a hammer and punch without breaking them?

  • @jamesguralski5156
    @jamesguralski5156 11 месяцев назад +2

    Have you tried the heat induction tool? And have you also tried just putting wax in there some of the old guys think eating it up and putting wax and it helps too

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  11 месяцев назад +1

      I haven't tried a heat induction tool, I wish I had one! They look pretty handy. I have seen the wax thing on youtube videos before, looks cool, but I have never tried it myself.

    • @jamiegarrett3869
      @jamiegarrett3869 3 месяца назад

      ​@CLASSICSAREBETTER
      is running the engine to get it warm ok before I take em out

  • @vdog4799
    @vdog4799 Месяц назад +1

    What about running the engine to get it hot then wrenching on the bokts. Would that help at all?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Месяц назад +1

      If you have an aluminum block, maybe, but overall I wouldn't count on it myself as with the block and bolt both heated, they have both expanded.

    • @oldandintheway9805
      @oldandintheway9805 11 дней назад +2

      Heat just the bolt/stud with a fine tip torch to a red color, and put ice on it, without having the ice touch the block. The bolt tries to expand as it is heated, but can't expand. But it can contract when cooled, so it loosens up. works great. Heating the block and the bolt at the same time does not help, in most cases, as the both expand at the same rate.

  • @matthostetler5422
    @matthostetler5422 6 месяцев назад +1

    Doing a light build on my old 04 escalade winter beater. The manifolds have never been touched. While doing a deep cleaning under the hood I noticed the head is missing on the driverside closet to the firewall. I made the responsible decision and ordered a set of long tubes and new ARP stainless hardware. Ive been soaking the hardware for a couple weeks now mainly procrastinating the job. Im hoping there is enough stud hanging out of the head to weld a nut on. Worse comes to worse it'll give me an excuse to pull the heads for some 243s, upgrade the rockers and slide in a very streetable cam.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  6 месяцев назад +1

      Hells ya man, when stuff breaks always wise to replace with something spicer if you can! Best of luck on your project. Those old Escalades are beasts.

  • @craiggerlach5548
    @craiggerlach5548 6 месяцев назад +2

    On an 02 that left rear bolt is hard to reach when working from up top. I had helper round off the bolt while I was in process of moving the front driveshaft out of the way. The ujoint was stuck in the yoke and I was in proces sof freeing up when he thought he could put a 12 sided wrench on it when I said only 6 sided and round it be.. now I can reach it and could have taken it out.. we do not need heads so about to cut that bolt off.. but will try some bolt extractors sockets I have 1st in morning.. this whole design is not mechanic friendly, having to pull pulley off PS pump to access bolts, putting that accumulator on the AC lines on top of compressor blocking bolts to bracket, and tucking motor under when it could have been forward a few inches allowing us to reach those ground cables and other electrical at rear of engine.. think will pull intake off before yank out as replacement motor had its manifold cracked by salvage yard and we cannot risk damaging in process... Older SBC were so much easier to work on...

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  6 месяцев назад +1

      Dude you are preaching to the choir on placement, they should make some of these engineers wrench on this stuff so they see how ridiculous it is to spend 30min removing parts for a 3min job on something simple! I wish you luck on getting that bolt out, I have used a reverse drill bit with a 90 degree drill adapter to remove them before, it's a whole bunch of not fun!!

  • @papergatorzfedducca7998
    @papergatorzfedducca7998 Год назад +2

    New subscriber!!🔥🔥🔥🔥

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +2

      Thank you for watching! I got some new videos in the works!

  • @Didewro
    @Didewro Год назад +2

    Great video....but what is the recommended best arp bolt to replace with?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      Thank you for watching, I should say that I am no expert on the various ARP bolts, but I lean toward these myself ... amzn.to/3mar8ka I believe ARP offers them in chrome as well. Always double check that the ones you decide on fit your motor before you order, best of luck with your project!

  • @cnrails
    @cnrails Год назад +1

    You can build them up with a mig welder if they break down inside the hole, then after building the weld flush with the surface you can weld a nut to it and wrench it out. Not really a huge issue, but obviously better to get the stud out in one piece.

  • @papergatorzfedducca7998
    @papergatorzfedducca7998 7 месяцев назад +1

    Hey what about if I have it on a running truck? Do you think the heat from me driving it will help the bolts come out easier?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  7 месяцев назад +1

      It may help a bit, but when you heat the whole motor the block expands with the bolts too. Best bet is to try the tighten loosen approach first if possible. Best of luck, be safe, working on hot exhaust is not super fun.

    • @papergatorzfedducca7998
      @papergatorzfedducca7998 7 месяцев назад

      @@CLASSICSAREBETTER ok thank you bro!!

    • @oldandintheway9805
      @oldandintheway9805 11 дней назад

      @@CLASSICSAREBETTER Let the block cool. Use a fine tip torch to heat just the bolt. Then put ice on the bolt. Bolt, when heated tries to expand but cannot. But when rapidly cooled it contracts and makes it easier to remove without breakage.

  • @diversedad7954
    @diversedad7954 2 года назад +1

    I'm still a long ways away from this part but I may just go out and start pulling mine off just to make sure I can get all the bolts out when the time comes. Inspector is coming to hopefully green light my new shop location then we can start excavation! Dream shoo first then the 66 project can really get under way!

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  2 года назад +2

      Hopefully I will have my running in the next couple weeks. Luckily I will have a parts list of what worked for me I can send your way to make a little easier for you bro. Awesome news on the shop. You will love it!!!

    • @diversedad7954
      @diversedad7954 2 года назад

      @@CLASSICSAREBETTER thats really my plan. Let you do the homework for me so I don't have to 😅 What route are you going for engine management/wiring harness? Holley EFI like I'd talked to you about?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  2 года назад +1

      @@diversedad7954 I actually found a full wire harness complete with fuse box, all plugs, everything & with awesome reviews for $160 on ebay and I am having a neighbor reflash my factory computer. Worked for his Nova LS swap, hopefully works for me. Fall back plan is pony up for Holley stuff.

    • @diversedad7954
      @diversedad7954 2 года назад +2

      @@CLASSICSAREBETTER Holy crap dude that's insane! Please update me how it goes!

  • @zzaher91
    @zzaher91 Год назад +1

    What all did u remove to get that much space to do the chizzling.? Just Seems like u had alot of room to do the chizzelen did u remove some hoses? Working on friends 02 accord and I can barely get my hands to fit to do anything then wrenching.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      On this video I had the motor out of the truck, so that gave me a ton of space. Working on an accord your going to have zero space unfortunately, I would probably remove the radiator and some hoses if you need more space, if you have to start moving wires and hoses around, make sure to take a lot of "before pics" so it's easy to remember where everything goes if needed. Good luck!

    • @zzaher91
      @zzaher91 Год назад

      Yeah there's zero space for wrenching better off just chopping off the rusted bolts with Dremmel. Especially if u don't have access to a lift.

  • @aldredge_saxxon
    @aldredge_saxxon 2 месяца назад

    Good video !

  • @dirtabletv
    @dirtabletv Год назад +1

    Is this usually happening on higher mileage trucks or can they break anytime?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +1

      Most things I work on are a 100k + miles so I am not sure to be honest. I think a lot of it has to do with the number of heat cycles the motor goes through, regardless you always want to be careful with manifold bolts high or low miles, just because its so annoying to drill one out if it snaps.

    • @dirtabletv
      @dirtabletv Год назад

      Thank you!!!

  • @daviddaniels6469
    @daviddaniels6469 2 года назад +2

    Great advice .

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  2 года назад

      Thank you, im trying to help people, taking your time the first time is much better than dealing with broken ones!!

  • @capoman1
    @capoman1 Год назад +3

    Another tip I've seen is to retighten the bolts, don't remove them, so the manifold stays flush while you do the remaining bolts

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      Not a bad idea, thanks for watching man!

    • @theguywhorarelylies5454
      @theguywhorarelylies5454 8 месяцев назад

      Clearly you haven't experienced enough pain in the garage. Using a breaker bar is a great way to go ahead and snap them right off, this is a very surgical procedure.

  • @DRo-ql8er
    @DRo-ql8er Год назад +1

    What about letting the engine heat up then spray the bolts with pb blaster and try to break the loctite up?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      i don't think that would hurt, but if your hitting the bolts for an extended period with a hand torch, it will heat up just fine.

  • @enricoderojassarson5596
    @enricoderojassarson5596 6 месяцев назад +1

    Need PB Blaster, followed by heat, followed by cold, followed by heat, then try the wrench. Rinse & Repeat. If you break the bolt head, you are screwed, so take you time. Oh Yeah, and tap with a ballpeen hammer in between heat cycles just for grins

  • @traviswilson3251
    @traviswilson3251 Год назад +1

    Do you know the torque specs and order they go back in? Or where I can find that info?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +1

      Here are the torque specs that I followed...
      Tighten the bolts on the first pass to 15 N·m (11 lb ft). Tighten the bolts beginning with the center two bolts. Alternate from side-to-side, and work toward the outside bolts.
      Tighten the bolts on the final pass to 25 N·m(18 lb ft). Tighten the bolts beginning with the center two bolts. Alternate from side-to-side, and work toward the outside bolts.

    • @traviswilson3251
      @traviswilson3251 Год назад

      @@CLASSICSAREBETTER thank you!

  • @oserratos
    @oserratos 2 года назад

    Hello. And to reinstall it's always recommended to use new ones correct? And torque them to spec?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  2 года назад +1

      Thank you for watching, I would definitely use new bolts if possible, the old ones have been heat soaked so many times it's worth it to start fresh.

  • @davidbennett288
    @davidbennett288 9 месяцев назад +1

    CRC's Knock 'Er Loose works very well as a penetrating oil for this.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  9 месяцев назад +1

      I have never tried that stuff before, I may have to pick up a can and give it a test. Thanks!

    • @davidbennett288
      @davidbennett288 9 месяцев назад

      @@CLASSICSAREBETTER All CRC brand products are good quality, a tad pricey but you definitely get what you pay for.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  9 месяцев назад

      @@davidbennett288 You know the older I get the more I realize you really to get what you pay for in a lot of things! Thanks for the recommendation.

  • @gregbowen9546
    @gregbowen9546 4 месяца назад +1

    I weld a 1/2" nut on the bolt head and they come right out. Bolts are still good to reuse. It just takes a 3/4 socket.

  • @oldandintheway9805
    @oldandintheway9805 11 дней назад

    If the worst happens, and you break off the bolt down below the block, Find another bolt, same size same thread count. Put that bolt in a lathe and drill the center out full length. Screw in that bolt with what threads are left in the block. It acts as a dead centering tool. Once you have a hole dead centered, you can start to incrementally getting larger drill bits, until you get to the max size, without cutting any metal from the block. Do not try to center the drill bit by eyeball. It will not be centered and you will create a mess. Then use a good sharp thread tap to get the remaining metal from the threads, and your home free.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  11 дней назад

      Dang that is genius!! Centering by far is the hardest part besides getting a drill physically in the engine bay. Putting this method in my mental tool box, thank you!

  • @oakcliffpride
    @oakcliffpride Год назад +1

    I like heating and spraying wd40 while smoking hot it seems to wick in penetration oil let it cool off then try to break loose
    .

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      Seems like a solid idea, I will have to try that on my next motor. Thank you for watching!

  • @andyklang7871
    @andyklang7871 2 года назад +1

    Thank you

  • @hydrocarbon82
    @hydrocarbon82 4 месяца назад +2

    I don't even bother, mainly because I have a welder. Here in the Rust Belt there's always 2-4 already broken, so it adds less time to weld a nut to a freshly broken bolt than spend 10min wiggling it.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  4 месяца назад

      For those with the skills welder is definitely the quickest way!

  • @shane462
    @shane462 8 месяцев назад +1

    Has anyone tried letting the engine run till its warm in order to heat up the block?

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  8 месяцев назад +1

      You could try it...but that's not for me, working on a hot manifold/headers is no fun lol. You'd also be heating (expanding) the block and the stud bolts at the same time, I try and heat just the bolts so that they expand and contract to help break them loose a bit. Let me know if you try it though! I am always happy to learn something.

    • @shane462
      @shane462 8 месяцев назад +1

      @@CLASSICSAREBETTER do you really want just your bolt expanding? besides the aluminum expands at a different rate

    • @shane462
      @shane462 8 месяцев назад

      @@CLASSICSAREBETTER what's not fun is damaging the block. which i why i am always reluctant to put heat on the block.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  8 месяцев назад

      @@shane462 That is a good point, mine isn't an aluminum block so I didn't think about that.

    • @shane462
      @shane462 8 месяцев назад

      @@CLASSICSAREBETTER I have a GMC 1500 not sure if that head is aluminum all my other cars that's why i assumed.

  • @Corfine
    @Corfine Год назад +1

    Cool sunglasses great weather in America Ireland rain all time

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      We do ok here in TX, mild winters, fall, and spring, summer can just sneak up on you if your not used to the heat, 103 degree (39 C) afternoons lol. Very cool that your in Ireland, thank you for watching!!

    • @Corfine
      @Corfine Год назад +1

      The weather is shit in Ireland your video like helped treat you could not hire garage four hundred euro for anything

  • @capoman1
    @capoman1 Год назад +1

    Seems like a breaker var would be better than a ratchet so you don't have to change directiins repeatedly

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      It would work about the same, I just like the ratchet so I had a little more control. I have broken them before and it's a bucket of no fun lol.

  • @beef8319
    @beef8319 Год назад +1

    Great. But how to remove the rear broken bolts while the engine is still in my 2000 gmc sierra 5.3??
    I've got hardly any room and no way to drill straight into bolt...
    Right angle drill I don't think will fit either

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +1

      The only one I have had to do inside an engine bay I used a right angle drill to drill it out. It is def not a fun job. If you can weld a nut on the bolt you may have better luck.

  • @luckymanham302
    @luckymanham302 3 месяца назад +1

    After 3 Foxbody Mustangs I’ve never broken 1 bolt on my headers. They’ve all been off and on multiple times and reused and never had one strip. Chevy must use Chinese made bolts

  • @privatedata665
    @privatedata665 Год назад +1

    I wanna update on the vehicle in the back

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад

      The C10 or my Camaro that is under the cover?

    • @privatedata665
      @privatedata665 Год назад +1

      The C10

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Год назад +1

      @@privatedata665 Think the last video I have up for it is putting the bed and hood back on. Currently I am making a video on the c10 for a full 4.5/6in drop, 6 lug conversion, front disc brakes, and some new rims. Got into some shipping issues so it's taking forever.

  • @somejimmydude2121
    @somejimmydude2121 Месяц назад

    I was just under my hood looking at a cam sensor leak and noticed a broken exhaust manifold bolt. This happened spontaneously because the motor has never been touched. Doesnt seem to have been leaking there so I'm just going to pretend I didnt notice it

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  Месяц назад

      100% if it's not leaking and you don't need it off, don't touch it bro! Save yourself the headache lol.

  • @mattcampbell4777
    @mattcampbell4777 6 месяцев назад +1

    As an EE and ME I do not see any use in that "loosen then tighten" thingy. If it turns while taking it out, it will turn all the way out without breaking. They break on the 1st turn when they do break..

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  6 месяцев назад

      Good to know going fwd, thank you for watching!

  • @AntiMaxer
    @AntiMaxer Год назад +3

    you can always just have a valve gasket leak and oil the manifold bolts daily with no effort!

  • @oldandintheway9805
    @oldandintheway9805 11 дней назад +1

    Ridiculous that the factory puts Lock Tite on the manifold bolt. Heat loosens Lock Tite. Exhaust manifolds get HOT.

    • @CLASSICSAREBETTER
      @CLASSICSAREBETTER  11 дней назад

      Totally agree, think they just want it secure till the warranty runs out and it's our problem lol.

  • @mattblack133
    @mattblack133 9 месяцев назад +1

    NO WD40.

  • @phrenologisto
    @phrenologisto Год назад

    First 30 seconds can be trimmed from the video and it would be better. This isnt TV, people didnt find this video by accident. Also, WD40 isnt a traditional penetrant.

  • @theoriginalBlue72
    @theoriginalBlue72 Год назад

    Remove and replace with stainless studs by rogue fasteners 🧷