Ryobi crankshafts interchangeable?
03-27-2005, 03:13 PM
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Ryobi crankshafts interchangeable?
I have a Ryobi with the short shaft and I sheared the key on the flywheel. The key is made into the flywheel. I have another Ryobi that has a long shaft that has shot bearings. Can I take the long shaft out and use it in the short shaft case? I could then use the flywheel from it that has a replaceable key. How would I get the short crank out and the long shaft in without ruining the bearings? Also, is there any way to fix the sheared key on the flywheel? I have it on with some loctite right now, but would like to have something to keep it in place.
03-27-2005, 04:24 PM
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RE: Ryobi crankshafts interchangeable?
The taper is larger on the long shaft models. The flywheel will go on the shaft but will go too far onto the shaft. A new flywheel costs too much. It's cheaper to find a short shaft Ryobi or one of it's siblings that doesn't run to strip for a flywheel.
Long shafts are 3/8" dia. Short shafts are 5/16" diameter.
Enjoy,
Jim
Long shafts are 3/8" dia. Short shafts are 5/16" diameter.
Enjoy,
Jim
03-27-2005, 11:55 PM
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RE: Ryobi crankshafts interchangeable?
As others point out to me, when I sheared the cast key on my flywheel...... all it is there for is a reference alignment for the ignition, the compression on the taper hold things in place. Line it up and tighten it down on the shaft.
I added one step to hopefully improve the taper fit; I put some valve grinding compound on the shaft taper and worked the flywheel till it lost a few highspots; clean well and put together.
Just replace the bearings on the other and you have 2 useable engines.
I added one step to hopefully improve the taper fit; I put some valve grinding compound on the shaft taper and worked the flywheel till it lost a few highspots; clean well and put together.
Just replace the bearings on the other and you have 2 useable engines.
03-28-2005, 01:14 AM
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RE: Ryobi crankshafts interchangeable?
Anthony, I can supply you with two new bearings and a new seal. Also a good used short crank and matching flywheel if you really need them. Just let me know and we can go from there.....
03-28-2005, 09:48 AM
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RE: Ryobi crankshafts interchangeable?
AnthonyH
I have not done the bearings on the a Ryobi, but the local bearing shop had them for an Echo that I messed around with. We do not have any small engine shops in BCS but if we did I would have looked there as well. Basically you furnish old bearing so they can measure ID, OD, and length. Same for seals. For the price that Ryobi sells a compete new weedie, the bearings are not anything exotic.
With the same measurements you could probably order them via internet,
I have not done the bearings on the a Ryobi, but the local bearing shop had them for an Echo that I messed around with. We do not have any small engine shops in BCS but if we did I would have looked there as well. Basically you furnish old bearing so they can measure ID, OD, and length. Same for seals. For the price that Ryobi sells a compete new weedie, the bearings are not anything exotic.
With the same measurements you could probably order them via internet,
