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Old 11-05-2022, 08:52 AM
jcl777 jcl777 is offline
Join Date: May 2016
Location: Kingwood, TX
Posts: 53
Default RV-12iS Oil Cooler Hose Fitting Wear

Found by my mechanic during an oil change. The FF-00024 oil cooler hose fitting was much too close to a spring on the #1 exhaust. Do not know how long this condition existed. Have ordered a new hose assembly ($$$). As an aside, a local high school build is nearing completion, and their clearance at this location is almost non-existent as well. Mechanic has simply shifted the muffler slightly, which gave the clearance in the last picture below.

After moving the muffler...
John Leon
Kingwood, TX
RV-12iS, N221TF, #121130

Last edited by jcl777 : 11-05-2022 at 08:59 AM.
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Old 11-05-2022, 09:49 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,818

Legacy RV-12 has similar problem where hose from oil pump passes between exhaust stacks on right side of engine. Not easy to visualize problem when lower cowling is removed and oil cooler is hanging and out of normal position. Best way to verify is to remove upper cowling and use inspection mirror. Hose routing comes close to touching front exhaust spring.
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Jim Stricker - EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 830

LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father - CFI) - USAAF 1st Lt. Captain B-17H
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Old 11-05-2022, 10:52 AM
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Amadeus Amadeus is offline
Join Date: Nov 2020
Location: Basalt, CO/Lexington, KY
Posts: 152

Originally Posted by jcl777 View Post
Found by my mechanic during an oil change. The FF-00024 oil cooler hose fitting was much too close to a spring on the #1 exhaust.
Thanks for posting. I will be inspecting this weekend!


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