X-Mozilla-Keys:                                                                                 
BruceT2598@aol.com wrote:

 > Tracy,
 > 
 > On your new engine have you made any special weight reduction efforts?
 > The 13B housing look like they have lots of cast iron mounting pads which
 > are Just asking to be ground off.
 > 
 > Mark Wrathall
 > 

Maybe I should answer this one. No there wasn't any real effort to reduce the
engine weight by cutting off all of the various jig pads and unused bosses.
The oil filter mount was cut off and the oil main redrilled to make an
internal connection, but this was done for cowl clearance and the elimination
of the bypass plate. The oil filter was mounted remotely.
I did make such efforts to grind any and all excess metal off on the first
aircraft engine I built. The job was very time consuming and yielded maybe a
4 lb. weight savings. I'll probably repeat the same procedure on my personal
engine just to be a perfectionist.
Bruce Turrentine

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