REFLECTOR: oil lines and throttle/mixture cables?

[Don19dw at aol.com]

The following system has worked very well in my XL/RG for 6 years.    
1) Left tunnel contains only my two 1/2" bare aluminum oil cooling lines from 
nose oil cooler. Lines have standoffs so lines do not touch each other or 
walls of tunnel. Also have inlet air scoop at front of tunnel and an exit air 
scoop just in front of fire wall.  Have never had an oil cooling problem, with 
only the one oil cooler and an IO-540 260HP engine. 
2) My throttle, prop and mixture cables lay on fuselage floor, just inboard 
of left tunnel.
Advantages, cables are not exposed to heat or abrasion of oil lines plus each 
cable exits fire wall a different points so they line up more directly with 
their attach point to engine. Prop cable goes to far right rear side of engine 
so exits firewall near centerline. 
Don White  N19DW
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