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Old 08-25-2023, 11:23 AM
todehnal todehnal is offline
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 1,021
Default Voltage Regulator

I have 600 hours on my RV-12 with the Skyview HDX panel, and I am still running the original voltage regulator. I do have a couple of modifications that I did, just to try to extend the life of the VR, which is still mounted in the original location on the shelf. First, I added a 1/4" thick aluminum heat sink plate under the regulator, mounted the VR using white, heat sink compound, and I still have the small air scat coming from the engine cooling shroud that was installed on the early builds. I also eliminated the brown terminals holder and attached the wire terminals directly to the posts on the regulator. I think this ensures better electrical connection. Finally, I added an extra ground from the VR housing, directly to the battery ground.
The only problem is that the charging voltage is at 13.8, which is said to be a little low for our Odyssey batteries. It has been this way since day one. I am considering changing it out for Van's new VR, but I prefer not to move it to the top of the firewall and add the NASA scoop. I would like to keep it in the same spot, continue to use my heat sink, connection method, and scat tube set up.
Has anyone installed Van's new VR on the shelf and been pleased with the results. Thanks.....Tom
2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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