From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] TSIO 550 break-in
To: lml
Date: Mon, 19 Jun 2006 21:41:06 -0400
Message-ID: <web-1184308@logan.com>
In-Reply-To: <D456AE772BC43B468CB782B29279CC331EA07B@sdf1.mail.taturbo.com>
References: <D456AE772BC43B468CB782B29279CC331EA07B@sdf1.mail.taturbo.com>
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Posted for "George Braly" <gwbraly@gami.com>:
  
  Art,
  
  USE  a  LOOONNNNG   runway.   Cool time of day.
  
  If it were mine,  I would ask Jack McAlester  what kinds of  TIT's and
  fuel flows that he has at full power....  For some current numbers.
  
  Absent that, and keeping in mind that I have not looked at the numbers
  for that engine in about two years,  but from memory (always dangerous
  to rely upon):
  
    When you power up,  make sure the TIT is under 1400,  and preferably
  under 1350.   I like  TITs  around 1240 to 1300 on 8.5:1 compression
  engines with 22d timing at full power/full rich.   But there is some
  variability with probe placement from one installation to another.
  
  Unless the fuel flow is adequate,   abort and adjust the fuel flow
  UPWARDS.   If it is too rich,  you CAN use the red knob to correct that
  problem.
  
Fuel flow at WOT x 2700 should be in the 43 to 46 gph range, depending a
  bit on the engine and ambient conditions.
  
  Have somebody watch and communicate on the radio and make sure you are
  not TOO rich with too much black smoke before you get to takeoff speed.

  CLIMB at 160-170KIAS  full rich.   You can use WOT - - (where did Monty
  set it???  Around 36 to 37 " Hg,   would assume) and 2700 RPM for the
  shallow climb.
  
  Level off at 2000 to 3000 feet AGL and fly around at high speed and
  essentially full rich.    Either use full power,  or try 33" x 2500 and
  a TIT under 1400d F, or even full rich.  TITs ought to be under 1400 or
  so.  Again, preferably under 1350.

  1st flight:      10 minutes --  stay near/overhead the airport and LAND
  and then decowl the engine and hunt for leaks and chaffing carefully.
  
  2nd flight:     30 to 40 minutes.   You can climb at 300 to 400 fpm and
  high  KIAS to cooler/smoother  altitudes,  but stay as low as practical.
  Land,  decowl and look again.
  
  3rd flight:     Go somewhere,  but go at lower altitudes (under 14,000
  feet)  and come back.   Consider decowling  and looking again.   2
  hours?   Want to run LOP ?  OK.  30 to 33" x 2500 and 16 to 17 gph.
  
  4th flight - - out to 5 to 7 hours.   Same as 3rd flight.
  
  If at any time you see any  CHT get above 410d F - - - then DO SOMETHING
  right then to get them under control.    I like  < 380 for routine
  normal day in day out CHTs.

  At 5 to 7 hours,  drain the oil and change the filter.  Don't bother
  with an oil sample.    Cut the filter and hunt for metal.  Should have
  some small amounts,  but no part numbers.
  
  Replace the oil and filter and then  fly like it was broken in.  It
  almost certainly will be.
  
  Change the oil again and oil sample at about 25 hours.
  
  Regards,  George