re calibration, water should boil at 212 at sea level, for those of us who don't have a reliable thermometer.
I checked the oil temp gauge I installed a year or two ago, it seemed to read pretty accurately.

My gauge is just like your’s hotrod but I’ve never seen mine as high as in the pic of your panel that I have. That would be about 205-210 on my gauge.

BirdyinBOI wrote:My gauge is just like your’s hotrod but I’ve never seen mine as high as in the pic of your panel that I have. That would be about 205-210 on my gauge.

I checked & I did post one photo on this site of my panel with the old stock oil temp gauge.
Needle didn't seem to be that high, well below the original 225* redline.
But the gauge I was talking about checking in boiling water is an aftermarket (Scott?) gauge,
installed a couple years ago.

Bought the Tempest adapter and filter for my ‘58 182. Got the adapter in with no problem but couldn't get the filter canister on and it was the short one. Installation was blocked by a combination of the starter (above), the motor mount, the intake manifold and the firewall. Sent it back and will stick with the screen for now.

I also had a clearance problem getting an adapter and filter to fit on my 1973 C180J with the seaplane engine mount. I installed the F&M (Stratus Tool Technologies) filter adapter and the Challenger oil filter. The Challenger filter is a cleanable filter that is quite a bit smaller in both height and diameter compared to the Champion filter. I'm very pleased with the outcome. Everything works well - no leaks, no oil temperature issues. The filter is much easier to remove and reinstall and safety than the original screen. Bonus - I no longer spill any oil on the engine or firewall during oil changes.

Here is the link to the discussion https://backcountrypilot.org/forum/cessna-180-challenger-oil-filter-installation-21670?p=307405#p307405

colopilot wrote:When installing my 520 we checked the OEM filter adapter, and the threads were failed (per AD) so it's scrap...

What AD number is that?
I'd like to read it.

EDIT:
Researched this, it's AD #96-12-22.
The AD calls out a specific torque for the adapter nut- 50-60 ft lbs.
(as does the service kit for adding that same adapter)
When you say "the threads were failed",
were they stripped, cracked, or ?
And what do you think goofed up the threads -- over-tightening?

I'm somewhat familiar with the El Reno / F&M / Tempest oil filter adapters--
the Cessna OEM and/or SK210-160 adapters, not so much.
Just now, googling around, I found another one I've never heard of:
Superior Flow Company model US5003, using a Ward Aero-Flo 480 filter.
https://www.ebay.com/itm/CONTINENTAL-MO ... 1882823921
Looks like a clean little unit,
maybe a little less space-consuming than the Tempest or Cessna versions.
Anyone have any experience with these-- or even heard of them before?

hotrod180 wrote:…..Superior Flow Company model US5003, using a Ward Aero-Flo 480 filter.
https://www.ebay.com/itm/CONTINENTAL-MO ... 1882823921
....

Just for fun, I researched this one--
looks like it was covered by STC # SE325SW, issued in 1964.
I say "was", because this STC is now listed as "abandoned" as of 10/31/17.

I have an F&M adapter that I recently installed on my Cessna Skylark (Continental GO-300). I just swapped out the second filter. The first filter was so gunky (I changed it after 10 hours) and quite a bit of the gunk (grey mud) was ferrous, that it freaked me out. The second was MUCH better, thank god. I changed it after 25 hours. I think the original screens just allowed the gunk to flow around and settle in the sump, where it sat during oil changes. One odd thing I noticed was that when I cut the filter open the particulate stuff seemed to be on the inside pleats of the filter media. When I did GA and worked on newer Lycomings, I would be checking the outer surface of the filter. Does anyone know if the adapter changes the flow from the inside to the outside of the filter or did I just get confused when I laid it out to dry?

Flow is always from the outside so pleats are supported and don't blow out from the pressure. Ferrous gunk is interesting??