| Hi Charlie See photos of our Renesis setup in a Glasair SIIRG. She is running but not flying and appears to be cooling, but full noise testing to come. We removed the thermostat housing as we have less clearance to the top of cowl compared with the RV’s and put a fill point at the highest point. Our expansion tank is slightly lower than the fill point over the radiator. We have not put in a steam purge point in the end (middle tank) of the two pass radiator, not sure how much steam this will collect and if this represents a problem.
Cheers Steve Izett
 
I'm setting up the cooling plumbing for the Renesis (RV-7) & wanted to try the setup used in a lot of current autos, where the 'steam' lines go to the expansion tank and the coolant in the expansion tank is constantly pulled back into the input to the water pump. I'm hoping that this will do a continuous purge, similar to Lynn Hanover's setup with the extra swirl tank. I couldn't get the swirl/expansion tank higher than the water pump outlet (highest point of the system), so I modified the hotrod expansion tank shown, with the hope that when the system cools, it will be forced to pull only coolant back into the 'steam' lines. The plan is to collect the steam lines from the radiator, flywheel end iron, and pump outlet & return them to the port located at the 10 o'clock position on the tank. I'm assuming that I'll need to add a fill port on the pump outlet (top of engine) and fill from there after partially filling & capping the expansion tank. Any thoughts/criticisms? Charlie <surge mounted1.jpg><surge return1.jpg>-- Homepage: http://www.flyrotary.com/Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
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