AlexLev

Sounds good! I was looking at this probe: http://www.aircraftspruce.com/catalog/inpages/egtprobekit.php?clickkey=245125 but not sure which ones I can replace with. And Clarence, thanks for the advice -- I have the plane in a shop now for an ADSB upgrade and I wanted them to look into it fixing the probes -- I'll talk with a mechanic later and see what they quote.

Just saw this on another forum. Haha. Fess up, which one of you is responsible for this myth and taking 2-hours to remove your cowling??

I hear you, it's more than I can afford at the moment but I would still prefer to fix the EGT sensor I do have so as to have some info in flight, even if it is not exportable.

Late response here, but do you know what sort of probes I'd need to replace 1/2? They're not $180/each, are they? The ones I see on aircraftspruce are pretty pricey and I'm not sure if there are less expensive alternatives. It turns out I don't have a G2, just two different Aerospace Logic units. One for CHT and one for EGT. The CHT one is working fine.

Welcome!! Tell us more about the bird, how did you find her? Panel? What your plans with her?

Just picked up the industrial version, thanks Dan!

Well, it does go from 1100-1400 and then back down and back up, so it is sort of like a sine wave =\ usually between a couple hundred degrees F. Hoping it's still a poor probe though...it doesn't always do the sine wave, but on my most recent 4-hour cruise flight, it did that for a good few hours..

Sounds like a good idea to switch probes 3 and 4 and see if the problem is the probe or the actual cylinder.

PMed you.

Good timing, Dan. Thanks for posting this -- looks like the company is right in my backyard so I'll give them a call this week and see if I can just pick up the sensors locally!

Hey all -- New owner here. Bought an M20G a few months equipped with a Aerospace Logic Egt-100-4 gauge. Cylinders 1/2 were not working when I bought the plane, they always displayed "cold." Cylinder 3 has been giving me some strange readings sometimes, when in cruise flight it will oscillate between 1150-1350 throughout the flight. The engine seems to perform well, but those readings have me concerned as I read somewhere that could be a sign of a failing exhaust valve. Cylinder 4 seems to stay steady between 1350-1400 depending on how I lean. CHTs are all normal (different Aerospace unit) and don't change much during flight. My thoughts are that I should probably see if the probes are working fine for CYL 3 before I investigate too much further and may as well fix cylinder 1/2 in the meantime as well so I can get full EGT readings. - Who here has replaced EGT probes? If a mechanic does it, approx how much time does it take and what do the parts generally cost? Any additional thoughts would be welcome!

Good investigative work. I actually purchased my M20G from Airmods a few months ago, I also have a rusty flywheel, thats not a big deal, right? I flew it to Weber for a PPI, let me know if I can help or share info!

Congrats from another G-owner. I love my bird. Just got it a few months ago as well! Happy flying!

You might get a few more hundred hours out of it, you might not. I personally wouldn't go for it unless I was ready to pay for an overhaul in the next week if I needed to (but you can make that argument no matter how many hours a plane has)...

Funny you mentioned this. I noticed my fuel pressure on the ground the other day right at the end of the green. It normalized after take off. I didn't give it too much more thought after that. (M20G)

Had this come up the other day on a flight, but it was because we didn't have the fuel flow turned on, so as others have said...make sure all the units connected to the 430w are receiving proper power!

Hm, well I generally go 24 squared only if I'm down low at 3500 and want to go fast..the IAS is about 145/150 at 24 squared. Otherwise, I cruise at 2450RPM/22" or so.

Certainly. I cruise at 136 knots (no wind) at about 24 squared. Not bad for an O-360 IMHO.

Has a Pathfinder P2A instead. It works poorly, sort of like a wing leveler. I can get it to hold a heading on the heading bug, but turning to a heading is iffy at best.

The yoke has oldschool 60 second analog timers; great for timing a hold! It is indeed a LASAR cowling mod: http://www.lasar.com/mod-details.asp?id=8

Bought from a fellow MSpacer (through a broker though since he was out of country) who unselfishly sold her because he didn't want her to sit for two years while he was out on service. Since purchasing in December, I've put about 20 hours on it. Huge thanks to various MSCers who have reached out to offer their help and support, notably DXB and a few others who I've been exchanging messages with for the past year. Meet my name plane, lovingly named Pistachio, a '68 M20G. Here she is on the day I brought her home. (Yes she's in a hangar) She's been a blast to fly. I've certainly experienced some issues in the first twenty hours -- my 430W knob stopped working so I had to send it into Garmin for their ~$900 flat fee repair. The donuts on her are original from 1968. Despite having 4,000+ hours, somehow they are still to spec and pass annual. I know this is a larger expense I'll probably have to cough up relatively soon, but it's pretty cool that the donuts are still original on this bird! I also am not sure sometimes of what is "normal" and what is not, since I'm not used to Mooney's. For instance, there's a small little vibration in cruise flight sometimes and I'm not sure if it's just the way the plane cruises or if it's another issue. Despite these things, I love her and want to take good care of her and work anything out. I'm grateful to the previous owner for taking loving care and hope to learn, grow and have wonderful adventures with her as well! Thanks to the MS community for all your knowledge! I hope to continue to learn and contribute over time.

Thank you. I did have the heat on, so maybe it simply was just hot metal with the airflow. I had the cowling off the next day and things looked generally okay, but I'll take a closer look at the EGT probes and heat distress. Thanks!

Anyone ever experienced this? On Sunday, I was flying and was going through a hole to get on top of a cloud deck and I think I was climbing too intensively at practically max power and VX. At one point, I smelt burnt toast and immediately throttled back a bit and the smell seemed to have gone away. Doing a little research, I found this passage, quoted from here: https://books.google.com/books?id=bGUok8wPJHIC&pg=PA114&lpg=PA114&dq=burnt+toast+smell+in+cockpit&source=bl&ots=V50gDnhhRO&sig=fJMtNi2fhZZDVM9thbSzRngBg04&hl=en&sa=X&ved=0ahUKEwis9rerh8zRAhVl2IMKHcdgB7EQ6AEIPzAI#v=onepage&q=burnt toast smell in cockpit&f=false I got to my destination and back fine with no further smells, etc, but am a bit concerned that I may have caused some damage by the aggressive climb? It was quite cold outside and my CHTs were ok (although at one point one of the cylinders did touch 400, but that does happen sometime in this M20G...), but on the way back one of my EGT gauges kept oscillating strangely. Any thoughts/ideas? If I were to have a mechanic check this out, where would I have them look?

Took the 430w out and sent it into Garmin yesterday through a local avionics shop. Hopefully it won't cost more than the $900 or whatever the flat fee is!

Yeah absolutely, that's what I will do!