N513ZM

The gear in an Ovation is subject to SB M20-282 which requires replacement of the no-back clutch spring every 1000hrs. If the spring breaks you will be unable to lower the gear either electrically OR manually. You can review this service bulletin on the Mooney web site.

one other thing - if you are still breaking in the engine you are probably still doing 3 things that contribute to heat - 1. running at high power settings for extended periods, 2. using straight mineral oil and 3. marrying the rings and cylinders into a nice fit without glazing the cykinder walls. The first should be self explanatory and the second is (I'm told) providing somewhat less "slipperyness" than normal oil whether multi-grade or single weight. This is because (once again as I've been told) the straight mineral oil has no additives and the rationale to use it (besides the reccomendation by TCM) is that you actually want wear to happen between the rings and ridges on the cylinder honing as the engine breaks in. With the reduced anti-wear and slipperyness and the higher heat from the wering of the rings and cylinder walls, combined with the added heat from the higher ICPs you are producing to force the rings against the cylinders, it's no surprise that oil temps are higher.

Where are you reading OT? Moritz (ship's gauge) or JPI? Depending on placement of probe these may differ. My 2000 Ovation2 (ser 29-0202) ran at ~180-190df depending on OAT in cruise, for the last 900hrs since I bought it at 400hrs. Now with 8hrs on newly overhauled cylinders I'm seeing 210df. Im not concerned as most of this and the increased CHTs that go along with it are from the break in process. I wouldn't woory - since this is a new engine I would guess you are experiencing something similar. All clearances are tight, valves are actually working and sealing :-) and the engine is producing more HP (which means more heat to be carried away by the oil) than when it was run out.