FWIW,
When I was rebuilding my Renesis, I had planned to install the jets. I purchased them from Atkins against their recommendation. I
bounced it off Tracy, and he concurred with Atkins. Their contention was that the jets were more for auto racing applications (very high rpm’s).
Bryan
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On Behalf Of Jeff Whaley
Sent: Tuesday, October 06, 2009 3:45 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Seepage, no more. Oil system
Hi Lynn, with regards to your high-lighted comment about the check balls in the crank – that is one item
Bruce Turrentine suggested be removed in an overhaul for aircraft applications, replacing the balls with a carburetor jet to allow oil flow right away and continuously. So, I did install carburetor jets in my e-shaft during rebuild. Any comments? Anybody else
out there do the same thing? Just curious as I’m fighting high oil temps.
Jeff
Plus, the rotary is cold blooded. The big bearings stress the oil film to no great extent, and the major source of oil
temperature is rotor cooling. At low speeds and idle, the check balls in the crank don't even open to allow cooling oil to spray into the engine. Those balls operate as a function of RPM not temperature.
On the other hand, you will get a water temperature increase within one minute of startup. A water based coolant has very low viscosity
and flow to a distant heat exchanger will be immediate. Like the rear heater in my school bus.
Lynn E. Hanover