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DIO 50 Crank Bearing Removal

This is how I take the dreaded crank bearing off the pressed crankshaft


 


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DIO Piston Install TIPS
These are some tips on installing or taking off your two stroke pistons from the crankshaft. Always keep the parts clean and take your time and do the job right. Remember that the piston always goes on with the arrow on the piston crown, pointed towards the Exhaust port. Put your rings back on or take them off with a piston ring expander. Rings are very brittle and can snap in half, very easily. Line the rings up with the single ring pin in each slot. Oil the rings and cylinder walls with two stroker oil and carefully lower the cylinder onto the piston. Use a new base gasket , scraping off the old one. When changing or working with the cylinder off, stuff the crankcase around the crank rod to stop foreign debris from entering and fallin in the crank well. Use a new head gasket every time and torque the head bolts in a cross-hatch pattern to avoid warping the aluminum head. Take your spark plug and screw it into the head before installing to make sure the plug sits flush with the top of the cylinder head chamber.





DIO Cylinder Head Dynamics
After market dio heads are all a little different and it is very important that you have the right plug length for the depth of the cylinder head. Water cooled heads take a longer plug than the air cooled ones. The point of this video is just to take your plug and make sure the plug seats well and is not to deep or too short for your particular head. Remember all the parts are different and checking them does not cost a dime and could cost a motor. Dont guess when a question could cost you nothing to ask. RH





1-Dio Piston RIngs
This explains my understanding of how piston rings work.





Installing thin cut DIO Crank Bearings
This is how I install crankshaft bearings and seal them for optimum performance





Installing main bearings in a Vespa engine
I haven't seen anybody use this method yet. I am too impatient to put things in the freezer overnight and don't like feeling like I'm in a race against time to keep the bearing cold. This method obviously works quickly and easily if you're careful. Playing with a torch and liquid CO2 is obviously dangerous. Both can cause you quite a bit of pain if you're clumsy.





Ural Crankshaft Back Bearing Removal
Tool to pull the back bearing off a 750 Ural crankshaft. German made in Canada by Kottwitz Werke.





Crankshaft Refurbishing
Many of you have seen this one before. I apologize if bringing it back offends anyone. Domestickilla gave me a crankshaft, and it's a nice one that I want to clean up and use again. You'll be seeing a lot of it and because of this, this video deserves to be here. I fixed what I broke, and this was my experience. In this video Ballos Precision Machine demonstrates magnetic dye penetrant testing, crankshaft polishing and inspecting the balance of a "butchered" 4g63 6-bolt crankshaft.





Rear Wheel Bearing Removal With No Special Tools BMW 3 Series
I did the job with no special tools. Well, the only "special" tool I used is found in your plumbing department. Bearing Installation Video Here http://www.youtube.com/watch?v=DX9iCZIVgFY&google_comment_id=z12uzlzhhzn0xv scj22ngfgyskbav3hsv&google_view_type#gpluscomments





Moped Crank Bearing Removal
Just showing how you can use the bearing splitter sold by harbor freight to replace bearings on your moped crankshaft. As you can see the Puch e50 crank I was using was rusted as all hell so it doesn't get much worse then that and I haven't had any difficulty.





how to install motorcycle crank bearings
never hit the bearings, even if you use a block of wood with it or a rubber mallet, these cases are designed very precise for this, If you do this job I recomend using an oven or a propane grill (top rack only) to heat these cases. Also since you shouldnt put an open flame on your new bearing stick the crank in the freezer that will cause the crank to shrink ever so slightly and it will slide into the WARM bearings. Sounds crazy but if your crank doesnt spin right or you have premature bearing failure, you will relize why this is done. Yes you can use open flame on the cases if you prefer but dont use it on the bearings. Make sure you remove the seals before you do this too.





GASGAS TXT Pro New-type crankshaft bearing installation tips
NOTES: Before you attempt this work, please read all of this information here Jim Snell from GasGas in the USA explains how to properly align the new-type crankshaft bearing and seal assembly. This also applies to updates for the older model Pro engine. IMPORTANT NOTE ABOUT THE MAGNETO SEAL: when doing this work, when using new or your original engine cases, always remember to also install a NEW OUTER MAGNETO-SEAL on the (left-hand) magneto side engine case. This seal goes into left engine case-halve from the inside BEFORE the bearing is installed. (In this video, Jim is using a set of new engine cases to show the markings and bearing position and the seal is not shown. In the new cases featured in the video for demonstration purposes, there is not a magneto seal installed.) IMPORTANT NOTES ABOUT THE REMOVAL OF THE CRANK BUSHINGS IF YOU ARE UPDATING AN OLDER ENGINE TO THESE NEW TYPE SEALED BEARINGS: When updating an older PRO engine, the crankshaft outer "seal bushings" must be removed from each side of the crank "spindles". These bushings are pressed-on and have an o-ring underneath. These bushings and o-rings will not be re-used. These bushings are installed with an interference fit. To prevent damage to the crankshaft, we recommend that you address this removal by the method shown in this video or show this video to a competent mechanic who is familiar with pressed-on parts of this type. This way, regardless of who does the work, it is done properly. Or see your GasGas Trials dealer to do this work for you. http://www.trialspartsusa.com/tech.html Music by Kevin MacLeod - (incompetech.com) Licensed under Creative Commons "Attribution 3.0" http://creativecommons.org/licenses/by/3.0/





XS650 Crank Bearing Removal
Here is a very simple and easy way to remove stubborn crank bearings without destroying them.





Yamaha YZF R1 crossplane crankshaft technology explained
The crossplane or cross-plane is a crankshaft design for V8 engines with a 90° angle between the cylinder banks. The crossplane crankshaft is the configuration used in most V8 road cars.3d model of a cross-plane crankshaft demonstrating the 90 degree angle between the crank throws and the large counter weights.The crossplane crankshaft has four crankpins, each offset at 90° from the adjacent crankpins. The first and last of the four crank pins are at 180° with respect to each other as are the second and third, with each pair at 90° to the other, so that viewed from the end the crankshaft forms a cross. The crankpins are therefore in two planes crossed at 90°, hence the name crossplane. A crossplane crank may have up to five main bearings, and usually does, as well as large balancing weights. Crossplane V8 engines have uneven firing patterns within each cylinder bank, producing a distinctive burble in the Exhaust note, but an even firing pattern overall. Their second-order balance, owing to the 90° bank angle and 90° throws, means no additional balance shaft is necessary to achieve greater smoothness. Without the 90° bank angle, a balance shaft may be required. The other prominent design for a V8 crankshaft is the flatplane crankshaft, with all crankpins in the same plane and the only offset 180°. Early V8 engines, modern racing engines and some others used or use the flatplane crankshaft, which is similar to that used in a straight four or flat-four engine. Flatplane V8 engines may use any angle between the cylinder banks, with 60° and 90° the most common. They lack the V8 burble and the superior mechanical balance of the crossplane design, but do not require the large crankshaft balancing weights. Inherent balance of the big ends is like a straight four, and modern designs often incorporate a balance shaft for smoothness. But without balance shafts, flatplane designs have the least flywheel effect of any V8s, which allows them to be more free-revving. The crossplane design was first proposed in 1915, and developed by Cadillac and Peerless, both of whom produced flatplane V8s before introducing the crossplane design. Cadillac introduced the first crossplane in 1923, with Peerless following in 1924. Inline-4 engines can also use the crossplane concept. The 2009 Yamaha YZF-R1 motorcycle uses the crossplane crankshaft and, in the absence of the 90° bank angle of the V8, must use a separate balance shaft geared off the crankshaft to eliminate the inherent vibration (a primary rocking couple) found in this type of crank. A crossplane crank has been used in Yamaha's M1 MotoGP racing models in the past. Yamaha claims advances in metal forging technologies make this a practical consumer product.





(3)- Mating the 54mm cylinder to Stroker Crank
This is the tricky part of compressing both rings while trying to manouver a 4 kilo iron cylinder above them. It does not help with my slightly stiff, 50 year old hands. It should be a snap for you young guys. RH





crank bearing removal on atv or motorcycle - crankshaft repair
http://www.rockymountainatv.com - the easy way to remove crank bearings from ATV and Motorcycle crank shafts. Tusk tool also pulls gears and other bearings.




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