Today's Message Index:
----------------------
1. 06:27 AM - Crank seal (Gary Casey)
2. 06:55 AM - Re: Crank seal (Archie)
3. 07:54 AM - Re: Crank seal (steve korney)
4. 08:27 AM - Re: Crank seal (FLYaDIVE@aol.com)
Message 1
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--> LycomingEngines-List message posted by: Gary Casey <glcasey@adelphia.net>
My crank seal spun in the housing (stuck to the shaft). As I recall
the technique of replacing a crank seal and making sure it adheres to
the crankcase is a precise and esoteric one. Any advice on this
one? The engine is a newly-rebuilt IO-540, but there are lots of
hours on the core. I assume the rebuilder will cover the cost, but
he's not here to do the repair.
Gary Casey
Message 2
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--> LycomingEngines-List message posted by: "Archie" <archie97@earthlink.net>
If the case had not been align bored during the rebuilding,
it is possible the seal bore is eccentric, and may not seat well.
A two piece seal is easier to install, but most prefer the one piece.
I have seen seals repeatedly slide out, even with the use of pliobond.
In these cases, have made minor prick punches around the periphery
of the case where the seal grips, and the problem ends.
Also have found that installing on a warm day, (or hangar),
makes the installation a bit easier.
Archie F.
Archie's Racing Service
----- Original Message -----
From: "Gary Casey" <glcasey@adelphia.net>
Sent: Tuesday, August 15, 2006 9:09 AM
Subject: LycomingEngines-List: Crank seal
> --> LycomingEngines-List message posted by: Gary Casey
> <glcasey@adelphia.net>
>
> My crank seal spun in the housing (stuck to the shaft). As I recall the
> technique of replacing a crank seal and making sure it adheres to the
> crankcase is a precise and esoteric one. Any advice on this one? The
> engine is a newly-rebuilt IO-540, but there are lots of hours on the
> core. I assume the rebuilder will cover the cost, but he's not here to
> do the repair.
>
> Gary Casey
>
>
>
Message 3
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--> LycomingEngines-List message posted by: "steve korney" <s_korney@hotmail.com>
Sounds like the case seal bore is oversize .... Maybe the seal has spun
before in the life of that case... The rebuilder probably won't cover the
cost... Good Luck...
Best... Steve
----Original Message Follows----
From: Gary Casey <glcasey@adelphia.net>
Subject: LycomingEngines-List: Crank seal
--> LycomingEngines-List message posted by: Gary Casey
<glcasey@adelphia.net>
My crank seal spun in the housing (stuck to the shaft). As I recall the
technique of replacing a crank seal and making sure it adheres to the
crankcase is a precise and esoteric one. Any advice on this one? The
engine is a newly-rebuilt IO-540, but there are lots of hours on the core.
I assume the rebuilder will cover the cost, but he's not here to do the
repair.
Gary Casey
Message 4
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--> LycomingEngines-List message posted by: FLYaDIVE@aol.com
In a message dated 8/15/06 11:00:54 AM Eastern Daylight Time,
s_korney@hotmail.com writes:
> My crank seal spun in the housing (stuck to the shaft). As I recall the
> technique of replacing a crank seal and making sure it adheres to the
> crankcase is a precise and esoteric one. Any advice on this one? The
> engine is a newly-rebuilt IO-540, but there are lots of hours on the
core.
>
> I assume the rebuilder will cover the cost, but he's not here to do the
> repair.
>
> Gary Casey
=============================
Gary:
It is a very easy repair. It is a little time consuming because proper
installation requires a lot of cleaning. AND I'd bet Dollar$ to Doughnut$ that
is
where the rebuilder failed.
Order a new seal and you should be able to figure it out just by looking at
it. Just remember CLEAN the case extra well.
Barry
"Chop'd Liver"
"Show them the first time, correct them the second time, kick them the third
time."
Yamashiada
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