YS cam bearings

[Tomanek, Wojtek]

Bob
 
Sorry to hear about your Star.  The right (front) bearing is in the cover so
it is easy to get the back bearing is in back of the housing (after you
remove the cam shaft).  What I do is strip the gaskets, o-rings and silicone
pieces and heat up the case, if you knock on the heated on piece of soft
wood or hard rubber it may come out, but that is unlikely.  I make a short
90 degree hook that can fit inside of the bearing, get behind through the ID
opening in the bearing and pull it should will pull out then.
 
Wojtek
 
 
-----Original Message-----
From: Bob Kane [mailto:getterflash at yahoo.com]
Sent: Friday, May 09, 2003 11:04 AM
To: nsrca
Subject: YS cam bearings
 
Has anyone changed the cam bearings on a YS140FZ? How do you get them out? I
may need to replace mine but I will not know for sure until I have a chance
to inspect the inside of the motor. My Star was totaled last Sunday when I
lost all control during the landing approach. (I suspect the power lead
pulled out of the receiver). The nose of the plane was buried 18" in very
wet clay, I had to use a shovel to get it out. The hole partially filled
with water before I was able to extract the engine, so I'm sure some water
got inside. I cleaned it and rinsed it out with fresh fuel, followed with
synthetic Klotz oil. The wet ground was a mixed blessing, the only physical
damage to the engine was a broken throttle arm, the needle valve and
extension wire were unscathed. I have since run the engine and it seems ok,
but it ate a new OS F plug on the first run. The plug failure may be a
fluke, but I'm afraid there may be corrosion inside the motor fouling the
plug. Thanks in advance for any help.
 


Bob Kane
getterflash at yahoo.com
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