To prepare for the new bearing and seal installation, complete crankshaft bearing and seal kits are available through ProX.
The crankshaft should either be rebuilt or replaced depending on the severity of wear and desires of the builder. Find all the OEM replacement parts you need for your bike here. The tool took me an hour or so to make. Due to the unevenness of load distribution that can result from pounding the bearings out with a hammer, we caution against this as a primary form of removal without the aid of heat. If any problems were persistent when the machine was operated, such as a poorly shifting gearbox, or leaks between the crankcases, the causation of these issues must be identified prior to reassembly. This is especially true if the engine suffered a major failure where oil contamination was a resulting issue. Then paste the address you just copied there and it works like a charm. Used it today on my CT1 engine. As a note, on pics rather than load them to a specific users garage, just use the "Manage Attachments" part of the reply box, and upload the images as part of your reply. Remember heat is your friend separating cases. hehehe, Good luck and let me know how it goes. 1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250, slowly rescuing ghosts of a 1971 CT1-C and a 1967 Grand Prix 350 YR1. Ahhvery ingenius. Look around, I see them at flea markets for cheap too. I use a steering wheel puller, works fine on AT-CT`s. Crankcase splitting is the easy part almost any two bolt puller works you can usually borrow one free from one of the chain auto parts stores like Autozone. Click here to see more about ProX drop-in ready complete crankshafts. I went to order one of these tonight and got the following: Probably sold out from the advertising here! March 6, 2006 in DRZ400/E/S/SM. It didn't want to come out, so I thought I would just leave it on and while the case splits, the gear would pop off. Instead, a rubber mallet can be used to encourage separation. All Rights Reserved. I use to have a MIG, but then I went to Grad school, I had to move into the big city. Any seals installed cock-eyed will wear out prematurely. Why is it when I am logged in, the links come up? Inner race temperature can be gauged by applying a drop of water to the surface of the race. ProX Racing Parts. Alternatively, utilizing a crankshaft puller is another great way to install the crankshaft. I have one of those harmonic balancer pullers too. yours or anybody.. To shrink the crankshaft in place the crankshaft should be set in a freezer for about an hour, and the inner race of the crank bearing should be carefully heated with a torch.
Any bearings that did not drop out should be carefully tapped out with a punch and hammer. Rebuilding the bottom end of your engine, whether two or four-stroke, can be a fun and rewarding job. Using heat to remove the crankcase bearings reduces bearing bore wear and work on part of the rebuilder. Properly keeping track of these items is critical. It is super simple to set up, and made in the USA. The trays will catch the bearings and any oil that did not get cleaned out. I redid the arms a couple of times and then the last time bronco used it he did them even stronger, really need to be stronger than you would think. Click here for our 46 Best Homemade Logging Tools eBook, 40 Plans for Homemade Sanders: Disc, Drum, Spindle, and Thickness Sanders, http://www.arboristsite.com/community/threads/homemade-crankcase-splitter.227126/, Transmission tower workers taking breaks - GIF, Vehicle barge drifting while unloading - GIF, https://youtube.com/shorts/gLTp4jKpQtE Homemade Lathe Carriage Stop. Due to the extraordinary growth of the membership and resources, we are once again bumping up against hosting limits. Lets get started! After, the majority of the crankcase bearings should fall out of their bores. The pics arent working for me! I drilled some more holes so I can use four bolts to get a good grip. I prefer to lay sub-systems out on a large table, remove the bare minimum of components/hardware to get to the items Im servicing, and stick bolts through cardboard in the pattern they were removed from components (think crankcases and covers). . , Can't see the pics. When I log out of thumpertalk, the links go away? Replacement components are a major factor to consider, both in terms of cost and engine performance, when diving into a bottom end rebuild. We split a 024 and a ms 880 with this one. The gear has a pin (of course) and when the case splits, the pin gets squished by the gears bearing, and the case goes side ways. This is a huge caveat, and for the average weekend warrior who doesnt perform this task often, unfamiliarity with technique and componentry can lead to errors. I used the insert Image icon, to add the photos. Comes with posts in 6X1.0 case threads, and 8X1.25. The use of the word "Yamaha" or any specific model designation is purely for informational purposes to assist users of this site and in no way indicate any endorsement by or approval of this site by Yamaha Motor Corporation. I dig it. Its recommended to peruse your service manual or microfiches ahead of the rebuild to generate a list of replacement components. Replacing bearings, seals, gaskets, and refurbishing the crankshaft either by rebuilding or replacing it is essential. While it should normally be expected that new or rebuilt cranks are within runout specifications, the trueness of the crankshaft is imperative to long-term durability. If they are on your hard driveyou will be the only one to see them.unless you want to give us all access to your hard drive. DIY Chainsaw Crankcase Splitter - comment on how to build a Chainsaw Crankcase Splitter - 0 comments. I am working on a fix. The parts needed are shown in this photo (sorry should of used a background with a different contrast): You will need a 1/4" aluminum platting. Shrinking the crankshaft in place using a combination of heating and cooling of components works well. MX250 Float Height (overflowing causing runaway id Crosspost: CT2 Top end with new VM26 carb, 1972 Jt1 Yamaha mini enduro Clutch spring help, 1972 Yamaha LT2 - Restoring the Original Wiring. The tips will be presented in chronological order. To remove the bearings by heating the crankcase halves, position the crankcase halves split line down on a pair of trays. To help ensure your next bottom end rebuild is executed to a professional level, heres 10 tips which will elevate your confidence and understanding as an amateur engine builder. Anyways, I'll type them out again as a hyperlink maybe that will work. Commonly, two specialty tools are required to remove the flywheel - a flywheel puller and a flywheel holder. At this point, your crankcases should be buttoned up and you should be well on your way to rebuilding the rest of your engine. To ensure the bearings are at the bottom of their bores, they should be tapped to confirm they are fully seated. Click here to check out ProX bearings and seals. It took a little while, as I started with a tiny hole, and worked my way up. When this happens, a punch and hammer should be used be help square the bearing to its bore. ProX uses reputable, OEM bearing and seal suppliers for all parts in order to maintain OEM quality. I split my case. 7" x 9" is perfect. BIG MISTAKE! Similar Threads - Husqvarna crankcase splitter, (You must log in or sign up to reply here. Instead, the crankshaft was secured from the primary drive side when the flywheel nut was removed/installed. or a saki? Images provided and owned by Kelsey Jorissen Photography, LLC. Basic, Special and Home Made tools Just for the DRZ. That way the pics stay linked to this specific post and thread.
After an hour of grief, I found out my problem. Successfully rebuilding your bottom end starts with planning and preparation. I have one of those harmonic balancer pullers too. I think I did a good job. The puller is threaded and seats against the crank bearing or crankcase and attaches to the end of the crank via a nut or retaining ring. Component inspections should be conducted to assess the condition of the gearbox, crankcase bearing bores, and crankshaft. Crankshafts that utilize an interference fit with their mating crank bearings can be installed two ways. Screwdrivers and the like should, Rebuilding RZR Engines the Easy Way: Polaris 800 Rebuild Kits, Yamaha YZ250FX Raced, Rebuilt & Raced Again, ProX Parties with the Babes!
Just to show some diversity to this Universal Case Splitter, used it tonight to split the case on a '72 Suzuki TC125.
Easiest way to post pice is to post them in your garage. Where did you host the pics? First off, I always recommend blocking the crankcases so that the split line lies horizontally, and confirming which side should be oriented face up. LOL. When you buy through links on our site, we may earn an affiliate commission. You also need a harmonic puller. hehehe, http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=7b16scd.jpg&.src=ph. This can be farmed out to a competent shop, machinist, or if properly equipped, performed in-house. Although listed to work on YL1 Yamaha Twins primarily, based on photos and description of the tool I got it, and what a very cool tool! There are a few noteworthy items to discuss when separating the crankcases. However, it was a real pain removing this gear. Would be real interested. I now have an idea for saws the splitter will not fit. At this point, it is my recommendation that all components that originated inside the crankcases be thoroughly cleaned.
Unless you are experienced in this field and have the tools, crankshaft rebuilds should be trusted in the hands of a reputable shop. Yes I did and couldn't live without my metal working tools . However, the former seems to be a better method. It's rough, but, I love my bike. The gear has a pin (of course) and when the case splits, the pin gets squished by the gear's bearing, and the case goes side ways. The caveat to this is the bearing dropping into the bore cock-eyed. Signup for our newsletter and get the 173 Best Homemade Tools eBook free! A blind bearing puller will also have to be heavily relied on to facilitate removal. They usually have the metric bolts needed. Wish I had thought of what you did. Similar to removal, heat can also aid in bearing installation. For example, most crankcase bolt holes are 6mm, so the stud should be screwed down at least 9mm to ensure adequate thread engagement. Easy to find parking, cheap insurance, and takes me wherever I want. We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. I highly recommend reviewing the sequence of events and procedure in advance of executing the work. Selection of components and sourcing them should also be planned out. On four-stroke engines that have oil passages running through the crankcases, cylinder, and cylinder head, it is imperative that these are cleaned and blown out. , But there is a home built case splitter in the FAQ Basic, Special and Home Made tools Just for the DRZ. Clean components will ensure easy and accurate inspections. www.vintagemotorcycletools.com/UniversalCaseSplitterTool.htm. Bottom ends are taken apart for many different reasons. By continuing to browse our site you agree to our use of data and cookies. Price is $59.95. The use of seal pullers to facilitate seal removal is not completely necessary, but is definitely recommended. ENGINE TECH,
UnfortunatelyI already bought a, How to make a Cheap and Easy CrankCase Puller. The word "Yamaha", the tuning fork logo or other trademarked logos and all other product names are, or may be, trademarks or registered trademarks of Yamaha Motor Corporation. December 21, 2018 / by If a major failure occurred, the scrutiny of the rebuild will be at a much higher level than a bottom end that is merely being reconditioned.
Many rebuilds have gone awry because a flywheel holding tool was not used during the rebuild. Be sure to position the crankcase splitter arms as close to equispaced from one another as possible.
Starting with tools, youll need a few specialty tools in conjunction with your standard sockets, wrenches, etc. This methodology reduces the number of mixups that can occur and ensures bolts of varying length will be reinstalled in their original location.
Once set up, the puller is tightened and the crankshaft is pulled through the bearing. For this reason, it is advisable to thoroughly clean the crankcases prior to heating them up, as well as keeping ventilation in mind. I do want to note that your heat source and surrounding area can become odorous due to the residual oils that become heated during the process. These statements are only true, however, assuming the bottom end rebuild is performed correctly. You don't by chance have a digital camera to take some good pics of the Crankcase Splitter. looks like a handy tool. Now my garrage is the my underground parking spot and my work place is on the patio. The crankcase puller is made using basic tools, an electric hand drill, a dremel (you can use a hacksaw) and parts available from your local hardware store. Regardless of whether a new or rebuilt crankshaft is utilized, the trueness of the crankshaft must be checked. I made a crankcase puller (an engine puller) and here are some pictures and tips for others who want to build one for their bike project. Powersports, Working as fast s we can to fix. In addition to OEM options, brands such as ProX offer OEM quality parts at more affordable prices. All other company and product names are trademarks or registered trademarks of their respective companies. Yeah that is weird. The bike, nah, I couldn't part with that. Take off the gear and remove the PIN! We use data about you for a number of purposes explained in the links below. Discussion in 'Chainsaws' started by Mark71gtx, Jan 14, 2016. At this point, the cooled crankshaft can be dropped through the heated bearing. This site is not affiliated with Yamaha Motor Corporation. The same heating recommendations apply, and once at temperature, the majority of the bearings should fall to the bottom of their bores without any input. I rigged up an electrical outlet to run a radio in the parking lot, and I keep a grocery cart to move my tools from my apartment to the parking lot. I would like to make one like it. . From setup on the case, to case split, to the tool back in my storage drawer in a matter of less than 10 minutes. If you do not want to or cant use the heating method to remove the bearings, an arbor or hydraulic press may be utilized to aid in removal. Website is: That looks almost identical to my "Yamaha" official version! I posted them on photos.yahoo.com. Pounding or pressing the crankshaft into place should never be considered because the trueness of the crankshaft can be affected. Then everyone can see them. Haha, yeah I hear yeah! - Makotosun. Read about the advtantages of ProX connecting rods here. I got one at a surplus store for $5. No arc welder, cutting torch or drill press are required! The oven, grill, or heat source should be set at 350 degrees Farenheit, and the crankcases should be heated for around half an hour. Please Log in or Create an account to join the conversation. 10 Tips for a Dirt Bike Bottom End Rebuild, Correct Tools, Correct Diagnostics, Correct Expectations, Correct Replacement Components, Once the crankcase splitter is set up, it is imperative that separation happens evenly around the periphery of the crankcases. majesus, any chance of chucking them up again im really keen to see them!! Thanks for your patience. Please consider joining our community! Seals can be tapped into place with a seal driver or socket and hammer. Once seated, work to button up the crankcase assembly should progress quickly, and the remaining inner race can be heated and the crankcase installed. In the meantime, the forum should function, but you wont be able to attach images. After an hour of grief, I found out my problem. My hardware store didn't have bolts long enough, so I used my dremel to cut off some bolts off and then used a nut to attach them as shown. For detailed information about the categories of personal information we collect and the purposes for which information may be used and which Data Processing Services may have access to this information please click on 'Privacy Policy". This applies to both two and four-strokes, but is especially critical on four-stroke engines that pass oil out the end of the crankshaft. When you buy through links on our site, we may earn an affiliate commission.Copyright ThumperTalk, Inc. - All rights reserved.ThumperTalk is a registered trademark. We do not sell or release any of your private or personal information except in response to a valid court order. Also, ensure that the splitter studs utilize thread engagement at least 1.5 times the diameter of the bolt. Alternatively, if you dont want to, or cant use heat, an arbor or hydraulic press should be utilized to install the bearings. You need JavaScript enabled to view it. One there you can link to them by right clicking and copying the address then click the little icon of the mountain above the post window. By
Using heat to assist in removal/installation of the bearings and crankshaft is an effective method, so an oven and freezer are also noteworthy items. The important checks to perform are to ensure the seals have been installed squarely in their respective bores, and at any prescribed depths outlined in the service manual. But looks like he used a welder and a cutting torch. NOTICE: If you are not a free registered member of the site, you will not see the photos in the forum, andyou won't be able to access our premium member content. Bearing removal can be done with or without heat. Question Did you move the puller around on the case to pull evenly or did you leave it where it is in the pics and just pull from there? While my method is far from the only one, make sure you have a robust and sustainable system for keeping track of everything. UnfortunatelyI already bought a motion pro case splitter. Similarly, on two-strokes, the passages that lead to the crank bearings should be cleaned. It is much faster to use a drill press to do this, but I don't have one, so outside, on my patio, I drilled the holes using my electric hand drill. | Babes in the Dirt 7, 12 Tips to Help Keep Your 2-Stroke Running Strong, How To Adjust and Replace Your Motorcycle's Throttle Cable, 10 Signs Your 4-Stroke Engine is Getting Tired, How To Make Carburetor Jetting Adjustments on your Dirt Bike or ATV, Why Replacing your 4-Stroke Motorcycle's Cam Chain can Prevent Engine Failure, Lightweight Design, Proven Durability | ProX Steel Sprockets. Even a steering wheel puller can work. So to help you out. Ahhvery ingenius. You need to have a copy of the factory service manual or equivalent for your particular vehicle. Using a crankshaft puller is an equally acceptable method and is incredibly straightforward. . Now that is being resourceful! Additionally, a considerable amount of money can be saved by taking on the work yourself versus tasking a shop to perform the work. Homemade chainsaw crankcase splitter fabricated from steel. Their use reduces the likelihood of bore damage during removal. All ProX bottom end parts are made by OE manufacturers and suppliers to OE standards, so your mind can rest easy that your rebuild can retain OEM quality and longevity. Should you determine you'd like to rebuild your crank, ProX offers OEM quality connecting rod kits that can be used for a crankshaft rebuild. Tech. One thing to note. This email address is being protected from spambots. Be sure to tap on the outer race of the bearing. At face value, this may not seem like a big deal, however, when the flywheel is removed, or more importantly installed, in this fashion, a torque is exerted across the crankshaft. Namely, the correct flywheel puller for your specific engine, a flywheel holding tool, a crankcase splitting tool, a blind bearing puller, and a crankshaft puller. However, saving on labor and parts isn't out of the question with the help of ProX. It is imperative that both are utilized. I removed the nut for this gear as indicated in this photo. I drilled a hole in the middle of the aluminum plate for the harmonic puller and two bolts to attach the puller to the plate. I found an inexpensive Crankcase Splitter on Ebay. I found one scrapped, so it was free. Screwdrivers and the like should never be used to facilitate separation. Upon installation of your flywheel, be sure to use a flywheel holding tool to secure it in place when torqueing the nut. It didn't want to come out, so I thought I would just leave it on and while the case splits, the gear would pop off. http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=fa44scd.jpg&.src=ph, http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=1a67scd.jpg&.src=ph, http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=9c73scd.jpg&.src=ph, http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=2256scd.jpg&.src=ph, http://pg.photos.yahoo.com/ph/k_fitchgerald/detail?.dir=fc2c&.dnm=d49bscd.jpg&.src=ph, However, it was a real pain removing this gear. Ordering in kits creates less hassle and is a budget-friendly step in your rebuild. So to help you out. Many riders associate the need for a bottom end rebuild with a costly trip to the shop. As the case splits, I was then able to use the bolts directly. Alternatively, a press can be used. Paul Olesen. SO many times when I was "designing" this puller I was like, FRIG I wish I had a welder to take care of the nuts. Best thing to drive. Topics: featured, The cautionary point here is to use care when heating if the crank seals have already been installed. Checking is insurance that our postal system didnt drop your crank, and that the factory or rebuilder did their job correctly. As the engine is torn apart, you will amass a significant number of components, bolts, nuts, and miscellaneous hardware. No I didn't leave them on my HD. Don't think he will be reading this postto re load the pics. When installing the crankcase splitter, make sure a protective cap is used to cover the end of the crankshaft. It moves around to make itself fit.
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