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I need a flywheel holder and flywheel puller

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Old 12-11-2008, 12:08 AM
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SAVAGEJIM
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Default I need a flywheel holder and flywheel puller

I did a search on RCU's search engine for a flywheel holder, and the only hits that came up were about a hundred threads that talked about flywheel holders for nitro engines.

I need one for our 5th scale engines. What flywheel holders are there for our engines? Or do any of you guys ave inventive and effective ways of holding the flywheel while unbolting the flywheel from the crank shaft?

Also, I looked at DDM's site and to my disappointment, they are sold out of flywheel pullers. Do you guys know of another place to get a flywheel puller for our engines? Or again, do you guys know of any inventive and effective ways of pulling off the flywheels?

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Old 12-11-2008, 12:30 AM
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Gas jocky
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Default RE: I need a flywheel holder and flywheel puller

I made a crude puller awhile ago when I was in a pinch, as it turned out it works really well and I still use it. Made from a piece of aluminum flat bar , drill two holes for bolt to go into the flywheel and one in the middle to the crank ( I threaded mine but you could just use a nut on the bolt to achieve the same thing)


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Old 12-11-2008, 02:49 AM
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MauiMikey
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Default RE: I need a flywheel holder and flywheel puller

I did something similar to Gas Jockey but with a thinner piece of scrap aluminum. Since it was too thin for decent threading I used a nut on the center bolt as mentioned. It's pretty simple. Three bolts (5mm? x 40mm), one matching nut, a piece of scrap with 3 appropriately sized and spaced holes. Grind or file a bit of a point on the center bolt (helps center it on the shaft), insert bolts with nut on center bolt, thread outer bolts into flywheel and start tightening the nut against the metal bar. It's a bit slower than the deluxe threaded model Gas Jockey shows but it will get you there.
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Old 12-11-2008, 07:22 AM
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slawhammer
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Default RE: I need a flywheel holder and flywheel puller

If your looking to buy a fly wheel puller I think ....www.innovativehobbyproducts.com my have one for like 22Buxs..
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Old 12-11-2008, 07:34 AM
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Default RE: I need a flywheel holder and flywheel puller

Ahh!!!! Great ideas!

Thanks so much, all of you! You too Slaw for the link!

Since I am considering mods for my engine (stroker aftermarke crank), a flywheel puller and holder are aa must.

Gas jocky & MauiMikey, I love your innovation and ideas. Not only are your flywheel holders holding the flywheel, you gus made the center threaded bolt hole work as a flywheel puller as well!
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Old 12-12-2008, 11:28 AM
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Default RE: I need a flywheel holder and flywheel puller

I made one too outta scrap aluminum, a tap and some bolts...cost nothing.
you can get a piston stopper to stop the flywheel turning, i just hold the flywheel and use my air wrench to get it off and tighten it back up works a treat.

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Old 12-13-2008, 10:38 AM
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Default RE: I need a flywheel holder and flywheel puller

also a steering wheel puller works also, thats what I have been using same principle..they sell those @ autozone super cheap, I think mine was around 10.00
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Old 12-13-2008, 10:41 AM
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Default RE: I need a flywheel holder and flywheel puller

i never needed a puller for my flywheel- i just tap it with a small hammer a few times and it pops off.
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Old 12-13-2008, 10:45 AM
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Default RE: I need a flywheel holder and flywheel puller


ORIGINAL: hndaman1

also a steering wheel puller works also, thats what I have been using same principle..they sell those @ autozone super cheap, I think mine was around 10.00
Steering wheel puller? Thanks for the tip there too!

I will hit up Sears and see what tools they can come up with. Hopefully their automotive section will have one.
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Old 12-13-2008, 10:51 AM
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Default RE: I need a flywheel holder and flywheel puller


ORIGINAL: savagecommander

i never needed a puller for my flywheel- i just tap it with a small hammer a few times and it pops off.
Tapping it on the bolt?What do you use to protect the bolt while you tap on it?

In 4stroke lawn mower engines, I use a threaded crank bolt protector and tap that with a 16oz hammer a couple of times. The shock breaks the metal-to-metal molecular bonding and will very little prying, the flywheel comes off.

When I hit up Sears today, I will look and see if they have such a bolt for chainsaw and weed eater engines.
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Old 12-13-2008, 12:32 PM
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Default RE: I need a flywheel holder and flywheel puller

no the crank, i undo the nut that holds the flywheel on, and tap the crank with a hammer. you dont even need to hit it harder than just enough to hear it.
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Old 12-14-2008, 11:28 AM
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Default RE: I need a flywheel holder and flywheel puller

I found this rebuild instructional vid series that HellyaFGhupups posted in another thread.

http://www.youtube.com/results?searc...rch_type=&aq=f

In this instructional vid series, they used a piston stop in place of a flywheel holder. I guess that is okay for 5th scale gasser engines since the piston, conrod, and crank pins are much more robust than hose same parts for nitro engines.

I kind of frown on using piston stops, but I guess that is because in nitro engines, the piston, conrod, and crank are much much more fragile, not just because of their much smaller size, but because of the softer metals used.
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Old 12-14-2008, 01:20 PM
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Default RE: I need a flywheel holder and flywheel puller

Hmmm,could an oilfilter wrench have been used as a flywheelholder?I think the diameter is pretty much the same,the flywheel is maybe a bit bigger

Just an idea i got
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Old 12-14-2008, 01:26 PM
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Default RE: I need a flywheel holder and flywheel puller

If that oil filter strap can be expanded to the diameter of the flywheel, that would be a great tool, especially since it gives exactly even distribution to the face area of the flywheel's outer diameter. Much more holding force than 2 bolts and a handle or an "L" handle like I use for my lawn mower engines.
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Old 12-14-2008, 02:30 PM
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Default RE: I need a flywheel holder and flywheel puller

I have a similar oil filter wrench like this,i can measure the diameter inside of it.There are also other wrences on the market,have seen som kind of self tightening strap attached to a handle
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Old 12-14-2008, 06:30 PM
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Default RE: I need a flywheel holder and flywheel puller

Slawhammer gave me a great tip in lieu of a piston stopper. He said I ould use a bit of rope, which is very similar to what I do for teh smaller nitros except I use zip-ties in teh same fashion.
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