REFLECTOR: Oil Temps - Ground Ops

[Brian Michalk]

Keep your CHT's below 300F while not flying.  This should help for 
proper engine break in.

Craig and/or Denise Woolston wrote:
> John and I are starting to get real data from taxing around.  Wanted to 
> bounce some numbers off the “collectively wisdom”.
> 
>  
> 
> With an OAT of 103 deg F we got oil temps to around 230 after, 10 
> minutes of taxing, one long runup and 40 knot taxi test down the runway. 
>  We then went to the compass rose and sat for about 1-2 minutes before 
> we shutdown.
> 
>  
> 
> We then swung the compass for about 30 minutes, restarted, taxi back 
> down, another long runup, 40 knot taxi test on the runway, taxied back 
> to the hanger and we were at 220 deg F.
> 
>  
> 
> CHTs never went above 350 deg F, most were in the high 200s for the 
> idling parts.
> 
>  
> 
> We have an IO-550 with the stock cooler on the engine (no ducting) and 
> the standard nose cooler.
> 
>  
> 
> Comments?
> 
>  
> 
> Craig
> 
> XL-5FG, Palmdale, CA
> 
>  
> 
> 
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