Bearings for YS 140L?

[Del Rykert]

Hi Incheol..
     IMHO any thing less than smooth indicates for me a bearing replacement.They should feel glassy or oily smooth. You may want to go for the stainless variety for longer service. Just be aware the retainers still can fail without warning and totally trash your engine. Bearings when they start to rust you can feel turning prop by hand normally. Not always though. Have seen 120's loose as much as 300 rpm just due to rough bearings. At the rpms we are currently turning that is noticeable.
     You don't want to wait till a bearing is totally broken as again you are looking at totaling an engine. 
    As for you other questions on the 140 can't say as I have never owned one.
 
     Del K. Rykert
     AMA - 8928 
     NSRCA - 473
     Kb2joi - General 


  ----- Original Message ----- 
  From: Ihncheol Park 
  To: NSRCA 
  Sent: Friday, May 16, 2003 6:48 PM
  Subject: Bearings for YS 140L?


  Hi, All,
  I have a few questions regarding bearings in YS 140L.

  Has anyone tried Boca Bearings in this engine?
  do they last long?
  Also, do I need to replace the front bearing that is a little bit firm?
  While the rear bearing is kinda loose (I could feel a little roughness when
  turning the rear bearing with finger stuck in it).  The front bearing (has
  red seal) is a little firm not really smooth).

  How do you know if the bearings are bad if not totally broken?

  Based on the manual, there is a oil seal behind the front bearing.

  Is it plastic or metal?  Does it melt?  How about the red seal that the
  front bearing bearing has?

  I am about to remove bearings from the crankcase, so I want to make sure if
  there is anything that I need to keep in mind.

  Thank you,


  Ihncheol Park
  CompTIA A+ COMP10648565
  1973 White Ave., #402
  Moscow, ID 83843
  (208) 883-7882 (home)
  (208) 661-5018 (cellular)
  PatternFlyer at msn.com


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