Whats the latest on the gear box drainback saga?
Have you flown it since you found that kink in the drain back line?

Paul Lamar

Ed Anderson wrote:

 I just sent an e mail with the type seal and part number to the list.

However, to get to your question.  The crankcase vent hose was definitedly
crimped but was hidden behind the throttle body plenum  which made it hard
to tell.  I also drilled out the 1/8" NPT end of the fitting empting oil
back into the pan.

I must admit that in all likelhood the cause of the oil leaking so severly
was the crimped crankcase vent hose.  I did not fly after I had the aircraft
painted for several months and then I put the new intake manifold on before
the first flight this year.  It leaked on the first flight and I initally
thought the seal may have set/harden from sitting outside in the cold for
several months with no engine run.  However, in hindsight, it was probably
due to the new manifold crimping the vent line.

   I ran the engine up past 5000 rpm and no sign of an oil leak, however,
the prop was off so this was not the definitive test with no load and
probably very little "blow by" gas. I've been debating whether to put the
prop and cowl back on and take it for a flight or wait for the new oil seal.
Been too nasty to flight here for the last couple of days and projected to
be nasty the remainder of the week. However,  I am going to replace the
National seal  with the new high pressure seal just to see if it will stop
the always present but minor leakage that I have had since I've had it.

  I am eager to get this behind me so I can start getting some data on the
performance with the new manifold.  I did check a couple of data recordings
off the HALTECH and found that it did reach 5300 rpm on static run up a
couple of times.  I have finally decided to build myself an Air/fuel meter
so I can better setting the injector timing.  Turns out the most expensive
part is the Oxygen sensor.  The IC chip only costs $1.75.

    Ed

So am I Ed. I think we are all waiting to see what she will do.
That 5300 RPM static is promising.

Paul Lamar
 
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