I have a 1972 Tartan 30 with an A4 which growled in gear and leaked oil through the rear seal. I replaced the seal and bearing and sleeved the flange.
Growl and oil leak solved, but today (first extended run) I noticed a vibration in forward. Very smooth in neutral and I didn't notice it in reverse, though I didn't do much reversing. It has a bit of a banging sound at around 1000 rpm, but smoothed out and became just a vibration at speed (1800). Felt like it might be something on the prop, but I checked and it's clear.
It might shift a little harder than before, but I wonder if I could have damaged or dislodged something when installing the flange. I bought the OilSeal video, and Don mentions that the pilot bearing has some fragile aspect. What would the symptoms be if I had damaged it, and how might I check.
Growl and oil leak solved, but today (first extended run) I noticed a vibration in forward. Very smooth in neutral and I didn't notice it in reverse, though I didn't do much reversing. It has a bit of a banging sound at around 1000 rpm, but smoothed out and became just a vibration at speed (1800). Felt like it might be something on the prop, but I checked and it's clear.
It might shift a little harder than before, but I wonder if I could have damaged or dislodged something when installing the flange. I bought the OilSeal video, and Don mentions that the pilot bearing has some fragile aspect. What would the symptoms be if I had damaged it, and how might I check.
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