Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
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 Posted: Thu Jun 09, 2011 3:57 pm Post subject: After market starter, beware |
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Posted from another site, but informative. Beware when you want to save a penny.
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I installed the HD starter from Sky-tec on my 100 HP 912 two years ago. I inspected the starter last week and I discovered it was filled with engine oil ( inside! ). After opening the starter i could not find any O-ring to prevent oil from the engine from flowing into the inside of the starter.
No, is the original Rotax HD starter identical to the Sky-tec starter?
This problem is not good? Anyone else experienced the same?
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Re: Heavy duty starter
Rotax Owner
NOW ONLINE
Administrator
This after market starter is NOT identical to the Rotax Heavy Duty Starter.
The after market starter does not have any oil seal at the starter shaft.
The Rotax 912/914 series crank case is sealed and is under pressure (for oil return to the crank case). Inside the crank case is also splashing oil. If the starter does not have a proper oil seal on the shaft, it may leak oil into the starter as in your situation. More importantly, the lack of a seal at this position may cause a pressure leak in the crank case and compromise the oil return system.
After market accessories including starters must not be used on a Rotax aircraft engine.
Please see Rotax Service Letter SL-912-014 / 914-012 / 2ST-008 for more information.
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Roger Lee
NOW ONLINE
Senior Boarder
That's the problem with after market accessories, you experiment at your own risk and many may look the same and your neighbor may tell you they are the same, but you're on your own as far as experimentation and any damage cost which can be expensive. I learned many years ago that trying to save a penny now may cost triple or more the original price if I had just spent a few extra pennies right up front.
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Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056 |
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