Today's Message Index:
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0. 05:41 AM - Coming Soon - The List of Contributors - Please Make A Contribution Today! (Matt Dralle)
1. 03:06 AM - Propeller turned backwards (jonathanmilbank)
2. 08:43 PM - Re: Propeller/engine rotated backwards (Roger Lee)
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| Subject: | Coming Soon - The List of Contributors - Please Make |
A Contribution Today!
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Message 1
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| Subject: | Propeller turned backwards |
What if someone's been turning my propeller/Rotax 912ULS backwards through several
revolutions? I know in that case oil will be "sucked" out of the hydraulic
tappets and damage would/could be caused to the valve train.
Would I hear clattering on engine start and would the noise continue? Or after
initial clattering, would the tappets fill within a few minutes and the clattering
disappear? The trouble is that someone else did the first start and he didn't
report unusual noises.
The engine has subsequently run for two hours including four flights. Should I
now undertake investigations for damage and if so, what should I be doing to
put this worry behind me? Rocker covers off and look at valve spring caps? Check
magnetic plug? Prime the oil system again to purge air out of the tappets?
Your advice would be very welcome, thanks.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=474341#474341
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| Subject: | Re: Propeller/engine rotated backwards |
If you keep doing that not only will oil be displaced, but you'll ruin the sprag
clutch on the starter and that usually means pulling the engine. Removing the
back end of the engine and replacing th4 sprag clutch. That will be expensive.
--------
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=474461#474461
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