In talking to other Mooney pilots, it never ceases to amaze me how many have, or have had trouble with tracking stability on landing roll out or take off. And the problem simply turns out to be that the collar on the top of the shaft that holds the donuts together on the nose gear was installed upside down. I was one of them.
I bought my Mooney from a shop in Florida that was not a Mooney Service Center. So, when I brought it home to Pennsylvania, I took it to Air-Mods over at Trenton-Robbinsville NJ and had some Mooney specific things checked out. Low and behold, the collar holding the nose gear donuts together was installed upside down.
The airplane didn’t feel all that stable on the ground at higher speeds, but being new to Mooneys, I just thought that that was how it was. But when that collar was installed correctly it made a noticeable improvement in the stability on roll out when landing.
So, I guess the moral of this story is. As the older, experienced Mooney A&Ps retire. With all the tribal knowledge that they’ve attained through the years. Make sure you remind the shop to install that collar right side up when you have your shock discs replaced.
John