Martin S.

Gents, does anyone know the correct inner diameter of the crush washer for the M-113 CHT probe on an IO-360 A3B6D? I think it’s 3/8, but I’m not sure. I’m not in the hangar to check and need to order. Many thanks, Martin

Thanks everybody! Sent from my iPhone using Tapatalk

Morning everybody, I’m trying to understand how the gear-warning microswitch on the throttle cable works on a J. I expected a groove in the cable that would deflect the switch arm and open/close a circuit, but that doesn’t seem to be the case since the cable appears smooth. There’s a small wheel/roll on the switch arm — but how does it measure the cable’s deflection? Thanks, Martin

Thanks Jim, I ended up grinding down a cheap wrench as others suggested - fits well and seems to have enough grip to get the nut loose.

Thanks for the anwers - that helps.

Evening gents, couple of firewall-forward questions (J with IO-360A3B6D): Can somebody tell me whether the hose from the fuel servo to the fuel manifold (should be p/b: LW-12784-4-172) comes with a firesleeve? Can't see a sleeve on mine and it seems wrong. Also wondering whether there is a special wrench to hold the engine mount bolt nuts (see foto) when removing the engine? Many thanks, Martin

OK – they mention reaching 75% by the end of 2025, which might be what @Pinecone was referring to. On another note, most M20 IO-360 engines appear to have a relatively high compression ratio of 8.7:1. Does anyone knowleadable see a risk that the 100R might not work for these engines?

Hey Pinecone, That’s interesting - do you remember where this was stated or do you happen to have a link to an article or video or where Swift mentioned this? Many thanks, Martin

Ok - that makes sense, thanks.

Hello gents, does anybody know who sells this STC, is it Lycoming? I mean despite the parts (engine, prop etc.), there must be the technical documentation that goes with it. Who does provide this? Also wondering whether it was validated under EASA, couldn´t find anything so far. Greets, Martin

Thanks for clarification everybody!

As far as I understand the overhaul requirement originates from SB643B.

Gents, does anybody know the overhaul and maintenance intervals for the A3B6 slick 4370/4372. The bendix dual mag (on my A3B6D) needs overhauls every four years. Do the slicks need less maintenance? (Trying to evaluate whether the conversion will lower my magneto maintenance bills in the long term) As far as I understand there should be no issues running an MT three blade prop on the A3B6 after conversion. Am I overlooking something? Many thanks, Martin

Perfect, thanks!

Thanks a lot!