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