Skywalker

Thank you!

Agree 100% !! Best fuel / performance /payload ratio of the bunch. And the only year with a real throttle.

There is a long list of errors by the original installer which we are fixing now. I wouldn't be surprised if this step was short cut too. Airplane is 1977. Year one of the J model. Thank you everyone for the ideas, appreciate all.

Yep we've done that too. When you disconnect the drive train to isolate the ends the wheel end isn’t a problem and the aft end jack screw still has resistance but the wheel end has no mechanical advantage and thus trim nose down not too bad but nose up very hard. We are thinking it could be those coil tension springs in the empennage, but can't really figure out their purpose. Any idea on that?

Yep did all that. We even added resistance and turned everything by hand. Could not identify any rough/sticky spots. Our current thinking is the only solution is new parts to prove what is working and what isn't, but we can't find any.... There are some parts on eBay but they are even older than mine!

I think the electric trim was original. I just had it replaced with the Garmin electric trim kit that goes with the 500 autopilot that I already had installed.

No it's not within normal tolerance stiff. It's dangerous if in IFR on approach trying to move it. Very difficult. Yes both on the ground and in the air, more so in the air with a load.

Yep have already cleaned and greased the jack screw. Didn't help. “friction screw” on some models it’s sideways into the manual trim wheel .." - yes we looked at that screw also, but can't seem to make it any better. Can't find a replacement assembly either. Any ideas on that? Anyone know anything about the two coil tension springs in the empennage? Those seem to be geared to help with nose down trim, but we're not really sure if they impact nose up?

Has anyone had problems with the M20J trim system being very difficult to trim nose up? My electric trim bit the dust, probably because it was working too hard to accomplish the nose up trim. Now that I've had to do it manually, I realized how hard it is to move the trim wheel. I've had my mechanic tear the whole system apart, starting at the tail and working his way to the trim wheel. He couldn't find anything really wrong with it. He spent over a week looking at every component, cleaning, etc.. Can't really find any thing wrong, and can't seem to make it more than marginally better. Any help out there? thanks!

What is the make/model? How old is it? I have an M20J, would it work? I live in california so I'd have to have it shipped here, not sure if that's possible?

Ah sorry misunderstood your question. Yes they both have adhrs and both have battery back up. Better plan than I had before if you ask me.

I fly IFR. Had plenty of vacuum failures too with no other ADI in the airplane to even think about switching to. I guess there's a downside to every configuration.

Well yes and no, the other 275 can also be used as ADI if the primary fails. Simple push of a button to switch it.

I'm not here to justify anything about my experience or the installation. Just providing asked for information. If you have something better, fantastic. I have electric trim, the same trim I had before. Yes I need to use it myself, the AP tells me when it wants me to trim up or down. So maybe its not coupled, I probably would have had to spend more on the Garmin trim but I chose not to. The thing practically flys itself, the least I can do is trim... I'm ok with that.

I don't know about that. They quoted, I accepted. I didn't pressure them on price at all. The final tally with things I added as we went was almost exactly half parts and half labor. They didn't complain and neither did I.