Correction, was How to install drive washer & retainer for YS 140s?

[Bob Kane]

I need to correct an error I made last night (should not post when I'm tired). The YS 140 crank has three steps machined in it. The first step does indeed go through the front bearing. The next step in the crank should butt up agianst the rear side of the inner race of the front bearing. The inner race of the front bearing gets trapped between the the retainer and the second step in the crank. When the retainer is slipped onto the crank, the front of the retainer should be even with the first step in the crank. It would be much easier to show than it is to describe, I hope I was clear.
 
If the crank gets hard to turn when you install the drive washer on the retainer, the bearings are not fully seated, and you do risk damaging the bearings by applying too much thrust load on them. When installed properly, there is no load on the bearings.

Ihncheol Park <PatternFlyer at msn.com> wrote:
That is what happened!!
Tried heating the case to put the front bearing more in, but it was already in 100%.
 
Gotta order a conical drive washer retainer.  The measured everything and the bearing is in correctly at first try.  Only problem was that the retainer is not stopping before reaching the front bearing.  
So, Everytime when I try to put the drivewasher in, the retainer is touching the front bearing that causing the shaft not turning with prop on.
 
I tried to contact Richard Verano at YS to add the retainer to other part order with updates, but could not get to him.
 
Hope he gets the message that I sent, so that I don't have to place different order again.
 
Thank you,
 
Ihncheol Park
 
 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On Behalf Of RUDDERCABL at aol.com
Sent: Friday, May 23, 2003 8:30 PM
To: discussion at nsrca.org
Subject: Re: How to install drive washer & retainer for YS 140s?


Sounds to me like the collet and or the drive washer is damaged . The force required to push the front bearing into place should be sufficient to seat the drive washer on the collet enough that it would not slip . 

That said , let me add that forcing the bearing into position is a practice that should be avoided . The side load forces exerted on the balls and races can do damage that can greatly reduce bearing performance and life . 

Robert Gainey 

Bob Kane
getterflash at yahoo.com

---------------------------------
Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20030524/b87f6c6e/attachment.html