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Old 05-28-2008, 11:00 PM   #1
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Default Guide: Removing flywheel

This is a guide on how to take your flywheel off, this is somewhat complicated for new people, when they have to swap there engines and have to keep there fly wheel for the second engine.

Tools you will need.

Guide: Removing flywheel-tylers-tutorials-007.jpg

Some sort of a clamp, an 8mm socket wrench, rubber hammer or something that wont hurt the fly wheel. and of course. THE ENGINE!!

Set the clamp to VERY tightly hold onto the fly wheel.

Guide: Removing flywheel-tylers-tutorials-002.jpg

Then grab your 8mm socket

Guide: Removing flywheel-tylers-tutorials-003.jpg

then attach to the nut

Turn and hold untill the nut is off

Guide: Removing flywheel-tylers-tutorials-005.jpg

Then hit the back off the fly wheel, i used my hex wrench set, in different spots untill it comes off. Then you have this!

Guide: Removing flywheel-tylers-tutorials-006.jpg


Your done!


make it a sticky??
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Old 05-28-2008, 11:11 PM   #2
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After removing the flywheel nut, i usually take a fat flathead screw driver and pry between the flywheel and the crankcase in different spots.

Thanks for sharing your thoughts though! It was very kind of you!
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Old 05-28-2008, 11:30 PM   #3
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Razor: That is really only a good idea if the motor you are taking the flywheel off of is junk. If you are doing maintenance you run the risk of damaging the front engine bearing with the screwdriver.
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Old 05-29-2008, 06:00 AM   #4
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Quote:
Originally Posted by razor_clawzz View Post
After removing the flywheel nut, i usually take a fat flathead screw driver and pry between the flywheel and the crankcase in different spots.

Thanks for sharing your thoughts though! It was very kind of you!



..Im shocked.
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Old 05-29-2008, 06:57 AM   #5
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Is it easier to get a fly wheel puller than risking a damage engine. A good flywheel puller are like $25 to $35 and not risking hundreds of dollar in damage..
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Old 05-29-2008, 07:58 AM   #6
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Originally Posted by HulkNT1 View Post
Is it easier to get a fly wheel puller than risking a damage engine. A good flywheel puller are like $25 to $35 and not risking hundreds of dollar in damage..
+1

Also a flywheel puller is virtually no effort to use... very fast, no frustration...
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Old 05-29-2008, 08:28 AM   #7
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Are those three poles* that the shoes and springs removable or will they come with a new flywheel? My flywheel is smooth and wont catch the boxs' wheel anymore.
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Old 05-29-2008, 08:50 AM   #8
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I know some people are buying batt. clamp pullers, there cheap and work good. I use this http://www.amainhobbies.com/product_...oducts_id/5547
and this http://www.amainhobbies.com/product_...oducts_id/4098
I also heat up the crank case a little ,comes off like butter . I know they are a little more $ however no risk no damage to anything and they last ..
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Old 05-29-2008, 10:38 AM   #9
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Quote:
Is it easier to get a fly wheel puller than risking a damage engine. A good flywheel puller are like $25 to $35 and not risking hundreds of dollar in damage..
I've seen multiple crankshafts broken with flywheel pullers. If you are going to use a puller, keep in mind if the flywheel does not move easily with it you could still damage the crank.

Striking the flywheel from the side toward the front of the engine with the handle of a soft handled screw driver seems to work the best for me. Light strikes, spin the flywheel around to even it out and it pops right off.

Also I would suggest getting a pair of vise grips or channel locks that are big enough that you can grip the flywheel from it's diameter, not pinching one side of it. You will be able to apply more torque to the nut by doing so and remove the nut easier.
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Old 05-29-2008, 11:07 AM   #10
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When I am tightening the flywheel down onto teh collet - will I need to somehow stop the piston/crank from spinning, or is it enough to just the flywheel in place with channel locks/flywheel tool? Ive never done this but Im going to be doing it shortyl and it seems like to tighten the clutch nut down onto teh flywheel I would need to keep the crack from spinning - if so how do I do this?
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Old 05-29-2008, 11:20 AM   #11
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Quote:
Originally Posted by Wes Briscoe View Post
I've seen multiple crankshafts broken with flywheel pullers. If you are going to use a puller, keep in mind if the flywheel does not move easily with it you could still damage the crank.

Striking the flywheel from the side toward the front of the engine with the handle of a soft handled screw driver seems to work the best for me. Light strikes, spin the flywheel around to even it out and it pops right off.

Also I would suggest getting a pair of vise grips or channel locks that are big enough that you can grip the flywheel from it's diameter, not pinching one side of it. You will be able to apply more torque to the nut by doing so and remove the nut easier.
How could you break a crankshaft with a flywheel puller? I could see someone damaging the front tip of the crank, but thats if the puller has a mushroomed tip or no screw is installed for it to push off of.

Only other way I have removed a flywheel without a puller is to place the engine with the crank tip on a wood block and tap the back of the flywheel with a brass drift punch.
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Old 05-29-2008, 11:22 AM   #12
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Default

Quote:
Originally Posted by wstuart View Post
When I am tightening the flywheel down onto teh collet - will I need to somehow stop the piston/crank from spinning, or is it enough to just the flywheel in place with channel locks/flywheel tool? Ive never done this but Im going to be doing it shortyl and it seems like to tighten the clutch nut down onto teh flywheel I would need to keep the crack from spinning - if so how do I do this?
When you get the nut all the way down on the flywheel, it should hold enough for you to just hold the flywheel and tighten the nut.
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Old 05-29-2008, 11:41 AM   #13
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Is anyone using a special tool to hold or remove the losi 8ight flywheel?
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Old 05-29-2008, 12:03 PM   #14
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OS Engines has a crankshaft clamp speciality tool that locks the con rod in place when you are trying the remove the flywheel nut and flywheel. OS Part#OSM71530200

http://www.advantagehobby.com/?cat=653
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Old 05-29-2008, 12:23 PM   #15
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Default

Quote:
Also I would suggest getting a pair of vise grips or channel locks that are big enough that you can grip the flywheel from it's diameter, not pinching one side of it. You will be able to apply more torque to the nut by doing so and remove the nut easier.

i thought about that, and i went to grab my bigger ones.. but the sprig was broken so i just did that
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