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                           JabiruEngine-List Digest Archive
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                     Total Messages Posted Mon 06/12/06: 1
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Today's Message Index:
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     1. 10:44 PM - engine whine in 3300 engine  (doncherie)
 
 
 
________________________________  Message 1  _____________________________________


Time: 10:44:48 PM PST US
From: "doncherie" <doncherie@slingshot.co.nz>
Subject: JabiruEngine-List: engine whine in 3300 engine

I have recently experienced a "whine" in the engine from 1200 RPM and 
below.
The whine disappears at exactly 1200 rpm and reappears once throttling 
back to that rpm.
We have taken the alternator out of the housing and checked for wear = 
none visible.
Cowlings have been removed to check for vibration of the engine on the 
cowls etc.Whine still persists!
Engine has been run without master switch on to check if electrical 
noise exists.
The engine is 117 hrs old and has been regularly and meticulously 
maintained.
Any suggestions?

Regards,
Don Boyd