REFLECTOR: Franklin seal leak

[Steve]

My Franklin has only 65 hrs on it. I have already replaced the 
crankshaft seal due to it leaking oil. It still leaked with a new seal.
I have also been working on getting my oil temp down  ... with some 
success. Since the oil temps came down, the oil leaking from the 
crankshaft seal stopped leaking., so maybe its a temperature related 
thing ??

Pure coincidence, I happened to check for any play in the crankshaft 
last week and was surprised to find a little play up and down but none 
from side to side. I am still pondering this when up pops your e-mail. 
Sounds like you have some experience or knowledge of this.

I would appreciate hearing what you know. Is this a known Franklin issue 
? How much of a concern (if any) does it represent ?

Steve



Robin Ream wrote:

>Just out of curiosity, can you feel any up and down play in the output end
>of the crank shaft, and did you dynamically balance the prop?
>
>Robin
>==========================
>
>----- Original Message ----- 
>From: "John Dibble" <aminetech at bluefrog.com>
>To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>Sent: Sunday, April 17, 2005 6:21 PM
>Subject: REFLECTOR: Franklin seal leak
>
>
>  
>
>>I have a 220 hp Franklin/IVO prop with 370 hours.  Recently I replaced a
>>    
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>leaking
>  
>
>>crankshaft seal at the prop end.  After 28 hours, the new seal has started
>>    
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>leaking.
>  
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>>Any ideas what is causing this?  I cruise between 2400-2500 rpm.  What rpm
>>    
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>do others
>  
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>>cruise at?  Thanks, John
>>
>>
>>
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