I ordered a set of these Teflon Encapsulated O-rings from McMaster-Carr for
my 20B.  These things are very expensive, and when I tried to install the oil
control rings, I was not able to get them down into their grooves with these
o-rings on!!!  They look like the correct size but they are VERY stiff
compared to the originals.  I was unable to compress them enough to work.
They were destroyed during the installation.  Any installation ideas guys!!!

Thanks,
Don

Sorry about that Don. I have no personal experience installing them other than one
time. I was dumb enough to install the cast iron oil scraper with out the spring. 
That is a real No No as you must then break the cast iron scraper to get it out. 
I agree. They are not easy to install. Perhaps we need to machine an installation
ring similar to a piston ring compressor or a large hose clamp.

I am hoping we can find a lube that will work. Most O-rings need a lube of 
some kind when you install them in concentric tubes such as the oil control O-ring
set up. Same goes for the neoprene O-rings in the wiggins couplings.

How many did you destroy? I just bought four big ones  for Perry's inner cooling
O-ring and they were about $10 apiece. How much were the smaller TES oil O-rings?
Sounds like you are the first to try them. Hang in there Don. Its going 
to be worth it.

Paul Lamar
 
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