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rparigoris
Joined: 24 Nov 2009
Posts: 792
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 Posted: Sun Aug 26, 2012 7:48 am Post subject: RotaxEngines-List Digest: 3 Msgs - 08/25/12 |
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Hi Damien
"I have been told that this crankcase fretting sometimes happens in the early model engines, such as mine."
I can understand that fretting on the crankcase can cause oil leaking, but in your case did it cause you to not be able to turn your prop?
Thx.
Ron Parigoris
[quote][b]
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Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
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| Posted: Mon Aug 27, 2012 4:55 am Post subject: RotaxEngines-List Digest: 3 Msgs - 08/25/12 |
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Ron,
I believe after reaching into the fog of my mind that the engine does not have bearings as such. The crank shaft rides in the case and if the two pieces "rub" together eventually the crankshaft will not be able to turn as the"bearing holes" for the crankshaft get smaller thus squeezing the crankshaft .
Don't quote me now, but I believe that is the reason
Dick Maddux
912 UL (old one and so far so good)
[quote][b]
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Thom Riddle
Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)
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| Posted: Tue Aug 28, 2012 2:31 am Post subject: Re: RotaxEngines-List Digest: 3 Msgs - 08/25/12 |
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Dick,
The camshaft turns in a bore in the crankcase halves without bearings, but not so the crankshaft, which does have bearings, much like many automotive engines.
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_________________
Thom Riddle
Buffalo, NY (9G0)
Don't worry about old age... it doesn't last very long.
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