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  #1  
Old 11-17-2022, 05:08 PM
aobrien5 aobrien5 is offline
 
Join Date: Nov 2022
Location: Lancaster, CA
Posts: 1
Default RV-12iS Radiator Leak

Our flying club's RV-12iS with a 912iS engine recently got a coolant radiator leak in an unrepairable area between the fins of the radiator which has grounded one of our two airplanes. A replacement is on order but is backordered until late December, early January and I wanted to reach out to the group and see if there are any builders out there with their engine on hand but still a couple months away from needing to run it that might be willing to swap their radiator for the one we have on order to allow us to continue flying into the holiday season. We are located in southern California. Any help anyone could provide would result in many happy pilots currently unable to fly our Vans airplane.
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  #2  
Old 11-17-2022, 05:16 PM
WJaviation WJaviation is offline
 
Join Date: Jul 2020
Location: Pensacola
Posts: 72
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My RV-12iS also has a leaking radiator in an unrepairable spot. On the lower, port side frame inside where the fins contact the lower surface. The leak was preceded by lifting paint in the same area. I contacted Vans and got the same response. Back ordered. I’m hoping this isn’t a “bad batch” situation.
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  #3  
Old 11-18-2022, 07:31 AM
bobg56 bobg56 is offline
 
Join Date: Nov 2018
Location: Peachtree City, GA
Posts: 272
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I have fixed minor leaks using Marine Tex epoxy. I had removed the radiator flushed out coolant and dried it out, cleaned the area and applied the epoxy. It has been 2 years and no leakage. The leak was from contacting the mounting frame. I understand some may be reluctant to do this but I've been using this epoxy for 50 years and it had always worked well for me in any application.
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  #4  
Old 11-18-2022, 07:59 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,820
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Just guessing... if RV-12iS uses a standard Rotax radiator, perhaps Lockwood, LEAF, or Aircraft Spruce might stock.
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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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  #5  
Old 11-18-2022, 12:03 PM
N8DAV8R N8DAV8R is offline
 
Join Date: Apr 2007
Location: Salida, Ca
Posts: 151
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Quote:
Originally Posted by aobrien5 View Post
Our flying club's RV-12iS with a 912iS engine recently got a coolant radiator leak in an unrepairable area between the fins of the radiator which has grounded one of our two airplanes. A replacement is on order but is backordered until late December, early January and I wanted to reach out to the group and see if there are any builders out there with their engine on hand but still a couple months away from needing to run it that might be willing to swap their radiator for the one we have on order to allow us to continue flying into the holiday season. We are located in southern California. Any help anyone could provide would result in many happy pilots currently unable to fly our Vans airplane.
Please contact me via reply to DM. I'm in the Central Valley. We may have a mutually beneficial situation.
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RV-12is - Airframe kits complete. Avionics installed. Finishing firewall forward.
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