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I've replaced the SD card slots in GTNs quite a few times. Mostly because they get gummed up over time and won't release the card without a pair of needlenose pliers. I highly recommend the Flight Stream 510. It's a SD card with both a WiFi and Bluetooth interface. The WiFi interface is used...

That would require flying at a reduced power setting. With ignition advance, there's no need to do this.

The other thing about the Surefly is that while they are electronic, they are not a "high energy" ignition like the Electroair system. According to their own FAQ section on their site, they put out as much spark energy as a Slick mag at 2700 RPM.

This has been my observation thus far. I read a review from another EIS customer who stated that his CHTs went up to about the 400-415 range. He spoke with Mike Kobylik of Electroair about this, and Mike said that was completely normal, and is a function of the ignition advance increasing the...

So we took her up yesterday. Flew at 4,500'. Probably wasn't high enough to realize any fuel savings benefits at 66% power (2500 RPM). But leaning it 100° RoP got us to 8 gph. Probably could have gotten 7.4 gph if we'd leaned to peak RPM like the PoH says. I think what it is...and without...

Yes. We have a two display Garmin G3X Touch system with Garmin GEA 24 engine analyzer. This also has a fuel totalizer. Yes we have a fuel totalizer. Have not yet tried the "lean until stumble".

I'm asking here because the AFMS doesn't mention anything about leaning procedures. But...this system is a variable advance system, which changes everything. A lean mixture burns slower, yet the fixed timing of a traditional two magneto system lights the mixture at exactly the same point of...

Can someone tell me what the validity period for a 3rd class medical would have been in the 1990's? I seem to remember it being 3 years regardless of age, but I could be wrong.

Yes. Used to own a 18' hot rod jet boat. It was my restoration project. Thank you for your opinion that was never asked for.

I've been with my HIMS AME now for 9 months (engaged with him December 24th), and was being monitored by a HIMS psychiatrist prior to engaging with the HIMS AME. Substance testing began on February 9th, 2021 through Choice Lab Inc. Release authorization was transferred to my HIMS AME with no...

In looking at ALL 172 wiring diagrams (even the 1996 and on), none of them show to install the shorting bar.

Just curious. Even though it's not impulse coupled and "shouldn't" be able to generate spark, sometimes it "could" generate a very weak spark, which "could" fire the mixture in advance of the IC mag (the impulse coupling retards the timing of the IC mag during cranking), causing possible damage...

Hi all. I understand the concept of the ignition switch grounding the non-impulse coupled magneto during the cranking cycle. However, in the electrical diagrams for a 1975 Cessna 172M, it does not show to do this, even though the aircraft only has one impulse magneto. Was this not a thing to...

So I have looked at that service instruction. That one shows engines that use the pressure screen in place of the full flow oil filter. It does not show Lycomings with the full flow oil filter. And again...while the Vernatherm is "approved for use" on this particular engine, Lycoming has no way...

Yes the viscosity bypass would install in the accessory case on ours as our engine serial number is after the published start serial number. Interestingly, there's just a threaded plug in the accessory case where the viscosity bypass would go, and the Vernatherm is installed in the oil filter...

We were looking at that first sheet as well, and did realize that Lycoming did not spec parts for the viscosity bypass on the E2D. Yet this seems to be in conflict with the Cessna 1969-1976 172 and Skyhawk Series Service Manual. This is the exact oil filter setup on our E2D. This page was...

The engine in question is a Lycoming O-320-E2D. According to the service manual for this aircraft, our aircraft serial number AND engine serial number actually had a viscosity valve originally. The text in the 1969-1976 172 And Skyhawk Series Service Manual reads - Both our aircraft and engine...

I'm sure the old one. Not the Aero Classics HE replacement.It's the original Stewart Warner 8406E cooler that came with the plane. Which brings me to the next question. Does anyone know the difference between the Stewart Warner 8406E and 8406R part numbers? I also noticed that Aero Classics...

Thank you for that. Think the Vernatherm will be the next thing I have checked. Will also have them check the baffles on the right side and the cooler lines while they're in there.

The thing I find interesting about this is that all of the other temps and engine running parameters appear to be in check. I'm honestly impressed with the even balance I see between cylinders on the CHT and EGT since this engine is carbureted. Nothing seems to jump out as a smoking gun. Only...