<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
>>


Doug Weeldreyer wrote:

 After cracking
> two backup plates in short order on my 360 and then making the fix I have
> had no cracking in 400 hours.

Before these two backup plates cracked did you notice if the pointy end was
on center with no wobble?  Did the trailing edge of the backplate wobble
before using the washers/spacers?  Approximately how much wobble was
observed?  Was the engine ever rotated with only the backplate bolted in
place (no spinner installed) to check for runout of the trailing edge of the
backplate?  Was the runout measured and, if so, what was that finding?  

Thanks for your contribution, Doug.

Jerry Grimmonpre'  LNC2
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>