These dimensions for the outer slot are slightly smaller than the housing
I have. 

Subject:        Teflon encapsulated silicone water O-rings.
   Date:        Mon, 26 Jun 2000 18:20:30 -0700
  From:        Paul <rotaryeng@earthlink.net>

Sorry for the tardy reply. Up to my ears in doing my annual on my C177rg-
including painting parts of it.

Measurements from an 1990 13Bnt first run disassembly SN, about 109,000
miles, unlaped center
housing-
water/oil pump side
outer distance, inside to inside groove=12.0" exactly. (I couldn't find any
more!)
inner distance, inside to inside groove=9-25/32" (used a machinists scale as
above)
depth in quadrants outer= .063/.063/.070/.069 (not completely
decarbonized....)
depth in quadrants inner=.061/.063/.066/.064
inner width=.151/.152/.152/.152
outer width=.125/.126/.124/.125

flywheel side
outer distance, inside to inside groove=12.0" exactly. (not a bit more it
looks to me )
inner distance, inside to inside groove=9-25/32" (used a machinists scale as
above)
depth in quadrants outer= .062/.060/.059/.063 (not completely
decarbonized....)
depth in quadrants inner=.063/.059/.062/.063
inner width=.151/.154/.151/.153
outer width=.125/.125/.123/.125

Hope it helps. Like I said, I have an engine put together and running using
Haynes teflon encapsulated silicone o rings for every single o ring. Will
your prices be lower???

Marc Wiese 20B in something this way comes.....

I hope so Mark. We are looking at about $15 each and I think Hayes charges
$25 each.


Paul Lamar
 
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