oil filter adapter SB
Posted: Sun Dec 20, 2020 4:28 pm
Any opinions to alternative products not included in the AD?
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As for the 1" square nut Bruce, I cut the "open end" off from 1" end wrench and welded a socket to it, 10 minute operation. My adapter has been in service for 21 years without problems. I will however comply with the upgrades at next annual. I see no safety concerns with the product if serviced properly.Bruce Fenstermacher wrote:First, it is not an AD yet. The NTSB doesn't get what it wants automatically.
By alternate products what do you mean. A different filter adapter or just a different seal?
Cessna made an adapter which has similarities of the F&M product. The Cessna adapter does have an AD requiring a retorque every so often. As for other adapters, all the rest have hoses to the remote filter. Much more complex and opportunity for failure.
As for the F&M product using copper crush gaskets. These have been used for nearly 40 years. They have always seeped a little oil likely cause they are almost always a bit loose. But now the NTSB wants an AD perhaps because the new "improved" fiber seal just didn't pan out as well as a copper crush gasket.
Originally the F&M filter came with a 1" square nut that needed to be torqued. Few have the tool to do this so it probably didn't get done right. I think if I see pictures right, the square nut has fallen to a normal hexagon. So that issue should be better. Use a new crush washer every time you tighten the adapter. Torque it correctly. Don't allow the adapter to turn when a filter is replaced and if the adapter does turn it is new copper gaskets and retorque time. You should be fine.
Joe Moilanen wrote:As for the 1" square nut Bruce, I cut the "open end" off from 1" end wrench and welded a socket to it, 10 minute operation.
Joe, I don't know about a 10 minute operation but I've made about 15 of these square sockets. I used 1" inside square tube cut to length with a socket welded to the end. Painted all but 1 green and that 1 was painted red. All but a few where sold them all at convention auction to benefit the association after getting a nice high bid on the only red one in existence for a guy particular to the color red.170C wrote:Bruce, do you still have those GREEN torque sockets you were making? Mine still works well. Doesn't get much wear so it should last forever.
I traded Bruce a set of crosswind landing gear for one of his GREEN sockets. I’ve finally gotten good enough at changing oil filters that I haven’t had to use it in about two years. I’m probably jinxed now...Bruce Fenstermacher wrote: Joe, I don't know about a 10 minute operation but I've made about 15 of these square sockets. I used 1" inside square tube cut to length with a socket welded to the end. Painted all but 1 green and that 1 was painted red. All but a few where sold them all at convention auction to benefit the association after getting a nice high bid on the only red one in existence for a guy particular to the color red.
My plane is blue and white so I'm sure it'll smoke those green and red ones... I'll take a picture of my socket next time I get to the hangar!cessna170bdriver wrote:I traded Bruce a set of crosswind landing gear for one of his GREEN sockets. I’ve finally gotten good enough at changing oil filters that I haven’t had to use it in about two years. I’m probably jinxed now...Bruce Fenstermacher wrote: Joe, I don't know about a 10 minute operation but I've made about 15 of these square sockets. I used 1" inside square tube cut to length with a socket welded to the end. Painted all but 1 green and that 1 was painted red. All but a few where sold them all at convention auction to benefit the association after getting a nice high bid on the only red one in existence for a guy particular to the color red.
My thoughts exactly Tim.mit wrote:Boy there where a a lot of crashes before the fiber Gasket.
The latest version of Tempest's Installation Instructions includes the following:GAHorn wrote: Using some heavy-gauge (.041 or .051) safety-wire to brace or secure against rotation seems a good solution... but it’d be even better if accommodation were made in the basic design to secure that safety-wire to the adaptor.