[modeleng] Pistons & Rings

Some of you will see this question posted in the ME Clearing House but I 
thought I should also ask here.  I'm ready to make the pistons for my 2X TICH 
and have a new (to me) situation to address and I'd like to hear opinions as to 
how best to proceed. The pistons will be cast iron, 1.625" OD and .500" thick. 
The rings are Clupet style, .125"" wide x .075" thick, two rings per piston. My 
question then is about what method to use for providing ring grooves and seats.

My inclination is to make split pistons and provide a T-ring for the ring 
grooves and a separator, and I'm assuming a separator is needed.  Also what 
should the lateral and radial working clearances be for Clupet rings?  Any 
experience with fitting Clupet rings out there?
Cheers,
Harry

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