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I have one on my IO-520 that we just cannot seem to stop a leak. We are doing what the SB calls for on copper gaskets and torque and it is still leaking. Anybody using an AirWolf or is there another approved adapter?
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Ed
196MHello Ed. My plane came with an Air Wolf Oil Filter Adapter when I bought her. 7 years of trouble free / Leak free service. I later purchased an Air Wolf AOS and the folks there were very helpful.
Yes, the Airwolf is mounted on the firewall. I’ve heard good things about it. My only concern is a hose failure would be catastrophic.
With regards to the F&M (now owned by Tempest), I used one on my IO-520 for years. The only time I had an issue is when a new mechanic would not understand the requirements.
First is that each time the adapter comes off you must replace both gaskets with new. The old F&M instructions were for one copper and one fiber gasket while the new Tempest update is two copper gaskets.
Second is that the torque value is super high and most mechanics miss the difference between the typical inch pounds and foot pounds used in this adapter.
If it’s leaking then it’s not torqued high enough. I would suggest starting over with new gaskets, and try again.
Tempest has a service bulletin and instructions that are very helpful.
https://tempestplus.com/wp-content/uploads/2021/06/Stratus-SB-001_Rev-B.pdfThanks for sending the SB Dean. We had seen it before and reinstalled per the instructions. I need to make sure we are using the correct crush washers though. And we had torqued to 65 ft lbs as well. Will try again!
New AD calls for removal of the teflon gasket at the base of the F&M adapter to be replaced with a crushed seal gasket. Also adapter must be torqued to 65 ft. lbs. every twelve hrs. I searched the FAA site fir the AD but it has not been posted yet. I followed the ad procedure and twelve hours later the top of the adapter had already began to seep oil. I am looking into going back to the original screen set up on the IO-520.
Joseph-exactly what happened to me. Should have left it alone as it was not leaking before we replaced the 2 gaskets.
I am going to try one more time and see what happens. And on to AW most likely if it leaks.
Ed
196M
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