can cracked crankcase be welded motorcycle
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If you could soak the crankcase in acetone for a while (overnight) to see if the oil can be washed out of the pores, scrub the cracked area with a new clean stainless wire brush, you might be in with a chance of getting a weld. I have to agree with llama though, you will probably get loads of filthy welds before. 6 min - Uploaded by Vegas RoManiacAmazon Link to Spot 20W 3" Round LED http://goo.gl/VZXNj7 Amazon Link to Spot 8 Degree. That's crap that will hit things like the ground long before the crankcase will. Usually breaking a crankcase involves one of the connecting rods giving way inside the engine and going through. People break covers all day long, but if someone cracked the crankcase they had to have hit something just right or. Given that this is an area which bears the majority of the stress/load of the bike I am wondering if simple welding can fix this... The crack went from the top of the casing (near the Crankcase breather) back through the bolt casing, around underneath, through the neutral switch hole & right to the centre line. When you accidentally get a hole in your crankcase, your first reaction may be that the engine is ruined. Oil will leak out and your engine will not run. If the crankcase is made of cast aluminum, you should be aware that you can't weld it, because aluminum melts at lower temperatures than other metals. However, you. When confronted with a cracked engine case, the motorcycle restorer has two options, find a replacement or have the case welded. To repair. Aluminum engine cases can be Arc welded, MIG welded, or TIG welded.. Kerosene is a good cleaner to flush out the crankcase, because its a thin solvent but still a lubricant. This is part two of my first thread, the bike clicks in gear by itself. I took it to a mechanic,. He has to split the cases, and completely tear down the motor, just to weld on this piece to the crank case... Thanks for the help I have ordered the gaskets and when I get them we can start to work on the bike. Ill keep. I believe I have a small crack in my crankcase right behind the clutch cover somewhere. I don't know. I went for about a 50mi ride and came home to find oil seeping down the backside of my crankcase, again. I have the. Can this be fixed by some type of epoxy/weld or something of the like? The worse. Any one ever tried to cover a small crack in a case with JB weld?. I just used crankcase sealant and am running it untill she blows Good luck. cast aluminum is very porous and the jb weld will get into the pores and it is almost impossible to weld. also grinding out the crack is a bad idea unless you use a. The case was cracked, but not missing any metal. As far as we could tell, nothing internal was damaged or touching. We decide some two part epoxy would get us back on the road. So, with the bike on its side we tore it far enough apart to have good access to clean everything needed to try and get a good. there is a hole in my crankcase were the shift shaft goes in my chain hit it and knocked part of my case off with it i tried jb weld but i dont think its gonna work is there something easy i can do besides buy a new one because this case is BRAND NEW!!! and it was 200$ i really dont wannna go threw all that. Hey i was just wondering. i just bought my new blaster and it has a cracked crank case on the left side and my father recommended that i could have it welded but im kindof afraid to do that. should i get it welded for free or should i buy a new crank case. i just dont want to run into this problem again. Thanks. Shattered or Cracked Dirt Bike Engine Crankcase Repair Remove the. I usually use aluminum so I can shape it to the original shape of the case. Hold this in. In approximately 30 minutes, the J-B Weld will be cured and the heat makes it flow out into all of the crevices in the case before it sets up. Cool the. The crack is where the blue line is. The red areas are around the crack and appear to be fine and have no problem. The green line is another place where there seems to be oil leaking, around that rubber thing. Does anyone know a remedy for this? I guess the crack can be fixed with some JB Weld, but. If you are going to use jb weld as a temp fix, you might want to check out quiksteel. Dirt bike guys use it all of the time to fix stuff on the trail (like a hole in the case). You can sand, tap, cut, grind etc quiksteel once it is setup. Only problem I see is that part of the hole is on the cover and the other part on the. I have done lots of searches and I see a lot of info on repairing cracks or holes in side covers and suggestions to weld if you can rather than JB Weld or epoxy, but. I am wondering if anyone has any recommendations for making a small patch on the bottom side of the crankcase with the motor in the bike? Can a botton end crankcase be repaired - posted in REV Chassis - Performance and Trail Models: Hi Guys, Im rebuilding a 2006 800 ho that had the misfortune of lossing its piston ring doing 120 KM/H last year. I can get the cylinders fixed and get a new head and all but I just found that on the mag side. A customer had a broken honda motorcycle crankcase cover that was some kind of die-cast looking aluminum alloy. Not much ductility in this alloy, as it had fractured into many pieces. I was concerned it was zinc-laden pot metal, but test weld showed no zinc burning, and file test showed it was soft like. Ok, I'm here to ask the experts (you guys) :waving: I cracked my motorbike engine block and was wondering if it can be welded up. I was told by a motorbike mechanic that using a putty metal to cover up the crack would be sufficient but i don't really belive that.. Any thoughts?? what would be the best wire for making a repair to a motorcycle case. i have used 4043 before but it seems as though it only graps the very surface and is. like this, a lot more metal needs to be removed prior to welding then people think, simply so you can access those tight areas to weld them back up. This week, we were faced with such a problem on a flange for a 1920 Silver Ghost crankcase which had, about 50 years ago, thrown a rod. It was repaired in one. Because we could not weld it safely, we opted to use a cold repair using aluminum 'dogbones' made out of pieces cut off a billet. These were. This is a repair to a clutch bracket on a motor cycle. I can't remeber the type of motor cycle. The bike was dropped and the replacement part was over £600. This repair came to £110 plus postage. Motor cycle aluminium welding repairs. Successful repair, once again. Triumph motor cycle aluminium engine casing welding. If the weld failed and I lost all my oil halfway to Fairbanks I would be SOL. So I decided to go with the TIG weld. Spoke to several local welders and they all said they could do it for about $50 but only if I removed the crankcase shell from the engine. They would not repair it on the bike. This was beyond my. Anyone have any ideas on how to fix this? I do not want to pull the motor if at all possible and would like to find someone who can weld it in place.. I have used these cold weld products for years to repair case damage on motorcycles, with suprizing good results. xxxxxkwizard is offline, Quick reply to this. My motorcyle's chain came off when I was doing about 40 mph and it cracked my case. I have pictures on yahoo photos so you can see the damage. I have the piece that broke off and I want to know if it is weldable. Right behind the piece that came off is a transmission bearing which is my only concern but. In classic motorcycle and car restoration one tends to repair and restore due to maintaining the originality of as many parts as possible.. Bellow is a crank case that has broken “i have marked out the originally broken spot with a marker”, as can be seen in the picture part has been welded and ground flush. I have fixed many a motorcycle engine cases with JB weld. If done. I would have suggested this to you, but I figured the guy who bought it from you wouldn't go for a JB welded engine case repair.. Thanks-since it is in the shop right now, I cannot do the repair, and will not do it myself unless I own it again. Or I could also do the front housing crack first, then drill and tap a smaller hole in the original plug. then JB weld the original plug into the hole and just drain oil from the smaller hole from now on. also what should I do before laying the bike on its side (90 degrees) or a little more like 100-110 degrees on a. I really want to do a proper resto on the bike with no JB weld or arleast as little as possible. Thanks for. I stopped the oil leaking from a cracked crankcase on an SL 125 that way probably 35 years ago. It was my first. P.S. you can use the silicone for a gasket cover too, and save yourself the $20 bucks.
I was wondering what is the best way to fix this JB Weld or what type of. The price of a case can be horribly expensive from the dealer. If the case is shattered, it is a little tougher job. If it is just cracked, it is an easy job to fix. Shattered or Cracked Dirt Bike Engine Crankcase Repair Remove the engine case, collect all of the. One of the bike and one of the damage. The plan was to degrease the area really well, buff slightly and apply epoxy. I figure if that didn't work. Well then it could go to the machine shop and they can clean up the epoxy crankcase repair with JB weld-imageuploadedbymotorcycle1450149650.501836.jpg As it came off it smashed into my crank case, breaking off a hole the size of a quarter. Now i took it to a machenic and to fix it they were giving me prices in the 2000+ doller range, because of all the labour in taking the engine apart and putting back together so i can either replace the crank casing or weld it. Crankcase or just a cover? If just a cover, it would be a few bucks and easy to change. If the actual crankcase is cracked, that could be major to replace unless it can be easily welded or something. I wouldn't make any decision on the bike until you've seen it or someone can assess the damage for you. A mate of mine cheerfully suggested that his colleague would be able to fix it by touchwelding the cracked alloy case without disturbing anything, to say that I was unenthusiastic about this is a bit of an understatement- I mean...what could be the flaw in welding a crankcase full of oil? !!! Tell me I'm right to be. Poor maintenance led to chain coming off and cracking crank case. Will get quote on Monday buy even if a rebuild cost $2000 I am scrapping a perfectly good Yamaha YFZ450. The motor is far for needing a rebuild and clutch, gearbox,starter, top to bottom is mint, its the saddest thing to my bike. New $300. Need to redo all the JB WELD work AGAIN! This time on the right hand side crankcase cover! WTFrack!!! First I went to turn the bike on and I could too easily move the kickstart with my hand! I HAD NO COMPRESSION! I then pressed the e-start button and suddently I heard a "metalishsquirt"/scream. Requires cutting fluid for drilling and tapping. • Galls easily. • Cuts easier than cast iron. • Very easy to oversize and egg-shape drilled holes. • Aluminum stitching pins are required in combustion chambers of cylinder heads. • Steel pins can be used for structural repairs. Six years and counting without issues to either mod. I'm a hobby welder so I just treated it as any other aluminum weld, but I recommend following proper repair practices. I just wanted to share my experince with cast Al, and that it can be done without and issue, just make sure everything is super clean. Summary: You don't have to be a professional tig welder to repair aluminum professionally. You can actually use Aluminum braze to repair cracks, holes, leaks, rivets, broken ears, threads or fabricate aluminum, cast aluminum, and cast iron quickly, easily, and stronger than new. It's not hard at all. Many aluminum alloys can. So after saving up for months to get this bike, it's worthless in two days. :( Could someone give me some advise as to what I should do about this? My first intention is to just weld the crack because the engine ran fine and started fine even with the crack. The crack isn't near any key components to the engine. Magnesium Welding - Tig Welding Magnesium Castings. Repairs are mostly done using Tig, although welding magnesium can be done with other methods. A great deal of Magnesium Welding is done to repair castings. Not to join 2 pieces of metal together. Building up worn metal, replacing a broken lug with weld beads,. A piece of the aluminum crankcase that receives a bolt in order to attach the water pump to the engine broke off. The good news is that.... Honda CBR1000RR Motorcycle engine crankcase repair. A piece of the aluminum. It is important to note that the bolt will be under a little torque. Which product would. I showed him the crack and what do you know, he was some old harley ridin', hill climbin', hippie who seemed to pick up some mechanical skills (including engine case welding) over the years. Now I have learned that welding would warp the case, even if the motor is taken apart. He says- no you will warp. Please take care, no Al-Mg rod/wire (5xxx serie) will not work on magnesium alloy. Some housings at GILLERA and KTM motorcycles, housings of STIHL hand motor-saw are made of magnesium alloys. I never. move as you see the weld pool develop or you will be doing a bigger repair than you expect. But it will work. I have had a number of bikes and engines with pierced blocks that this has gotten by. Where that hole is the oil won't get out except by being thrown. Now, an expert might be able to alloy weld a repair... Some bikes have a seperate seal between the alternator and crankcase sections. It depends how much metal there is to weld to and how good the welder is doing the job. Here is the bad. Its anyones guess on how long it will last. I say this because that is a small piece that is broken off. The pics aren't that great; but it does look casty..lol. I'm all about repairing something if it can be done. The fundamental concept is to use JB weld to temporarily stop the oil leak so the crack can be patched with grey silicone gasket goop material. The oil can't touch anything that. Even a small crack can empty your crankcase blood onto the street in an alarmingly short span. 3. Sand! Get that area nice and. zonic. Newbie. zonic's Avatar. Join Date: Feb 2012. Location: Burlingame. Motorcycles: SV650. Name: Cool Welding a hole in my crankcase.. If it can be welded while the engine block is still intact, can I do the repair while the engine is still mounted in the frame, like afm199 is suggesting? Do I need to. You could jam a self-tapping bolt or sheet-metal screw into the stripped hole in a dire emergency. This might be a last-ditch temporary solution so you can get the bike someplace where it can be properly repaired, but it's a hideous way to make the repair, and has no business remaining in place. Repairing.
I picked up a nice clean 3000 watt generator from CL with a small crack in the bottom of the crankcase that allows the oil to drain out slowly (fell off the back of a. The manufacturer will ship a replacement crankcase for $62.00 + transport, which is probably close to what I would pay to have it welded. From pictures I have received, it looks like the crankcase has been welded at some point. Should I be concerned about this, or will it be as good as new (if repair is carried out correctly)? Will this weld decrease the value of the bike, and will it be possible to re-do the repair, so it won't be visible as it is now? Got a '71 Commando that has a faint crack line at rear of crankcase where the g/box cradle bolts on (top bolt). Runs vertical alongside the hole and horizontal for about an inch along the top of the boss. Took engine to a recommended aluminium welder who said he could weld it but prefer to have engine. I have an Aluminum motorcycle crankcase that needs repair around one of the engine mounting bosses: http://pages.cthome.net/davecullen/case_crack.JPG I can't do this myself, so I'll bring it to someone. Is this something that any welding shop should be able to do correctly, or do I need some sort of. Forgot my kickstand last week and did a slow lay the bike down move. The result was the left floorboard bracket bending into the crankcase. Very slow oil leak from where the crankcase is cracked. Not yet observable amount looking at dipstick. But it is cracked and leaking. Suggestions for a patch? JB Weld. It's very small and mists oil. I was wondering If I would be safe to JB weld or if I should take it all apart and check it out. The bike has been running great, so I don't think anything is floating around in there, but then again you never know...[/b]. I would get a new one. It will save you in the long run. Well.... i had a get off monday night from about 80 mph... the right side crank case cover broke and it appears to be the lower part were the crank.. I would take it to the shop and see if they can weld in the little whole, there is nothing importent there just space for the oil. Quote: Originally Posted by. I bought this 1976 XLH as a project bike a couple weeks ago.. I rode the bike for about an hour before I started my tear-down, it ran real strong, and didn't leak any oil from the cracked locations.. The biggest challenge to welding up the aluminum will be getting it clean and absolutely free of any oil. Well. This is my 3rd EK chain I've had on this bike and never had a problem with chains or clip style links before. NEVER AGAIN. Ill be using rivet style links from now on. So here's my question gents... I know my way around a tool box and I'm pretty confident I can fix this myself. But is it worth it to repair? I even patched a hole in the crankcase of an old Harley with it. But it probably. aluminium? A broken lever from the quick snap from a "Supercut 2 Q" oscillating tool from "Fein"... By the time you buy enough rivets and J-B Weld to build a bike, you could've bought a cheap stick welder and some rods. Also. Once I got the chain unraveled from around the front sprocket, I realized that my engine case is cracked.. I can only suggest ( other than the obvious ) JB Weld possibly.. Ive welded a few cases before and it takes a special person to do it right and usually engine needed to be out of the bike, good luck. I wish i had spotted it when i bought the bike but i didn't. There is about an inch square missing from the bottom outer edge of my right hand crankcase where the flywheel cover meets the crankcase. Bike is an 04 125 Beta. What would people recommend to fix it ? Could the case be welded in situ or would. Does anyone have any positive/negative history with using JB Weld for repair? I need. Motorcycles: a celebration of the human condition.. But it sounds like you have a cracked crankcase, depending on the location of the crack I would use it as a temp' fix, but long term it may need to be done properly. Use a dremel and clean out the crack with parts cleaner, that is about an inch long, and then use JB Weld on it. Let it sit for about a day. This could be a temporary fix or a long term fix depending on how it works out. 2. Buy a new crank case. I can't find one on ebay and was wondering if there are any other. Epoxy metal weld for aluminum; Repairs HVAC, radiators, engine blocks, boat hulls, equipment, appliances; Can be drilled, tapped, sanded, threaded and painted; Gives you a non rusting, non magnetic aluminum gray color, stays gray even after sanding/polishing; Made in the USA. I have a right side Panhead case #24563-53B with three cracks on the inside of the camshaft bore. Can this type of damage be repaired by welding and. That stuff looks like that Aluma-Braze that you use with a Mapp gas or propane torch? I've used it to fix the horn ring on a '69 Mustang (amongst other things ) for example...you can also use Oxy-Acet. of course. Don't know 'bout you guys, but we have a place called Haun Welding Supply shop near by that. yes the crack can be welded and fixed, the cost will largely be associated with how much work you put in it, the welder won't do it in the boat, if you find a.. I had a friend who fixed a hole in the crankcase of his motorcycle with some silicone rubber, I wouldn't have imagined that it would hold up long-term to. If you can rough up the area around the crack with a coarse sanding disk, the JB will stick better. I've used JB weld on many motorcycle case cracks with 100% success. Use Larger Stud in Crankcase When Threads Are Stripped CRANKCASE If you strip the threads of a hole in an aluminum crankcase, a repair can be made by reaming out. 318 POPULAR MECHANICS Dry Ice tests shock absorbers Puller for small bearings Shielding motorcycle control cable Welding-rod holder insulated. Hi,. On Sat I gave the bike a bit of a service, oil, plugs, carb clean, while doing so I noticed the fuel line was looking a bit worse for wear so replaced it. Once all backtogether I noticed a fuel leak, I tracked it down to the tank itself :(. Can anyone in the SW recommend anyone to repair a hairline fracture in my alloy fuel tank? Husqvarna Motorcycle: TC 449. Other Motorcycles: Ducati 998s & 750 F1 Montjuich. Mate I have used neadit metal putty on my old duke to seal a crack in the clutch cover. Has been like it now for 8 years or so and has never given me any issues. Nice and neat, you can hardly tell its there... If you weld, you. General Bike Related Discussion.. Ill be fitting an aftermarket engine guard if i can find one to cover the bottom of the crank case covers. Bike is a 2012. Got a die grinder, if so grind little V's into the cracks and either weld or quicksteel them and the outside and keepn an eye on it as it will be weakened. I heard that the good fix is to weld the crack, which is best done when the engine is completely disassembled. A proper fix should perhaps involve grinding away the crack, replacing the metal, and recutting the threads. Without removing the engine from the frame, perhaps it could be done a temporary. Hi everyone, I have a motorbike with a crack in the crankcase following a stack. Years ago I recall seeing a product used where I used to work that was basically "liquid steel", you applied it and it went hard and you could file it, grind it, whatever.... Ok, talking about two-stroke motorcycle cylinders here (specifically CR500's), There is a company that will weld up cracks in the sleeves that develop.. The cracks develop at the bottom of the intake port where the sleeve protrudes from the cylinder into the crankcase. My thoughts are, if this other company. I need to make a small weld repair on the bottum of a suzuki crankcase where the oil drain plug threads in . Exactly what. My aluminum welding skills are fairly limited but I do know that it will be near impossible to do without taking it apart.. So like you, on a dirt bike with a TIG, I'd just weld the sucker up. If you can get to the crack grind out a small grove, clean well and then apply the JB Weld. If you cant lay the block with the crack facing up apply the JB then apply a piece of regular paper over it to keep it from sagging or dripping out till firm. We tried this on a John Deere excavator for a temporary 2 week. I'm the third owner of this bike and was planning on selling it.. If it isnt good enough someone like eric gorr (or a local tig welder) will weld them up with some filler rod... I just want to repair it so I can be up front with a potential buyer about the condition and know the bike is safe and not a time bomb. Hey all, Looks like i have a crack in my crank case. Its leaking oil only while running. From what i understand i have two options, replace the case or weld the crack. What are the pros and cons here? Ill get some pics tomorrow after i give it a bit of a clean. Thanks in advance! rodwork, milling,cylinder boring, sleeving, honing, crankshaft rebuilding, head work, Had the crack been much lower, I could have lost a detrimental amount of oil. So, my question is...for the time being (before I receive my back-ordered crankcase cover) will a J-B weld fix do, for a temporary repair???.. My thought is, tip the bike, clear area/oil with gas and then cover/plug with putty. Gerry. Even if you can tig weld it (will have a hard time cause its cast) you will still have to buy a gasket kit and split the cases apart. You'll want to weld in and out and taking the engine apart will allow you to do that along with getting out any metal that might have gotten into the engine. Check you oil strainer when. Inside the case view; second pic looking from exhaust end forward you can kinda see the casting flaw area: And a shot of the head, for fun: So, any opinions on what may have caused/contributed to this? And most importantly, saveable with some JB weld? I'm going to swap parts over into another engine. Engine runs...anything I can do to repair it instead of replacing the engine? How would.. JB weld should work. I pluged a hole the size of a quarter on a Motorcycle crank case and a truck oil pan and it held for years.. JB welded it...took it out for a 2 hour run...worked perfectly...Thanks for the advice! Especially over the cracks that are hairline but widen as the engine heats up this should fill them better. (This tip was from a site asking about welding a motorbike crank case with JBWeld – though I can't find the link again). I also think I'll purchase a rebuild kit and replace the rings to help eliminate smoke. With the latest in laser technology at Carrs' fingertips, owners of prestige cars and motorcycles with titanium exhausts now have a viable remedy for cracked pipes and manifolds.. corrosion and failure. Laser welding reduces the heat input to the repair and, consequently, the work will last as long as the original material. If your end result is not rock hard, I bet you could answer no to one of these. If not, then the stuff is bad. maybe old. although I doubt it can expire. My first use of it on the GS was to seal the crankcase cover. I cracked it on a low side and used wire mesh and jb weld to bridge/seal the huge gaping hole. I had a. A mc suffered a crash and hit a solid object that crack the crank case. The temporary remedy was using epoxy to prevent oil leak. Whats the effect of this in the engine performance? TIA. broker218. January 26th, 2009, 10:29 AM. have your case welded or you can buy a new one (depending on your bike). WELLSPEK Specialist wheel repair. With a grounding in specialist welding within the precise environment of British Aerospace, Wellspek are well known and respected within the world of motorcycle restoration and repair, and have gained a reputation for excellence within that field.. ‿Motorcycle Crankcase damage.
