marcusku

Right, throttle wouldn't have an effect on oil pressure, but rpm would. Temperature has an effect too, lower temp-higher pressure at a given rpm. In my case though, the pressure was jumping around like some air entered the system. I thought it was the gauge at first but then I got a second JPI gauge and was seeing the same thing on both instruments.

On my J, I would get some fluctuation in oil pressure, and would show up first in a decent when the oil level was below 5.75 quarts or so. As long as it was more than 6 quarts, there was no change. I never did figure it out and simply kept the oil level between 6-7 quarts. A couple of theories were tossed around and the one I most believed in was a leak on the inside of the oil pickup between the case and the pan. The idea was when there was more than 6 quarts, that joint was below the oil level and therefore couldn't suck any air. The oil pickup is on the back of the engine so when nose down, that joint would get exposed earlier.

Another +1 for Aeromotors. They charged $500 for the overhaul and turned it around in 1 day. Seems like a great shop!

I've used them before as well. I think they are very knowledgeable and do good work though maybe not the cheapest. Pete, the owner is really impressive what he can figure out. He replaced a couple of capacitors in my autopilot computer and got it to work again.

I know this topic has been beaten to death. In cruise at 2500 rpm, 22", 50 LOP I see a difference of 60-80 degrees. Is this ok? At 50 LOP my max egt can be about 1470-1480, is this acceptable. What EGT is too hot? I know the blue arc goes to 1450. Could be in my head but running in this configuration I notice very slight hiccups, is this normal in LOP or should LOP be just like ROP?

H35W28V does appear to be correct based on appearance. Upon closer inspection it appears I need to desolder and resolder the new bulb to the wires. Not impossible, but wondering if there are any better solutions?

Turns out the above part number is different for mine. Any clue what the part number is for this bulb? (2004 Ovation)

Thanks for the reply, we'll see how it goes. I didn't spring for the LED at this time since the bulb was $245. Until the plane is paid for I'm avoiding the "nice to haves" vs "need to haves".

This is probably a dumb question but it wasn't obvious how you get to the bulb to replace it.

Thought I would follow up on what was discovered. It turned out to be the thrust block behind the actuator creaking. We tightened/lubed the hardware in that area and the noise didn't quite go away but was noticeably reduced. That thrust block does flex a bit when the gear fully extends, more than I would have guessed. My mechanic says he's seen this quite a bit.

I did poke around with the stethoscope. The place I heard it most through the stethoscope was on the big brace that the actuator pushes on. It was less obvious on the actuator itself-hard to tell if I was hearing it through the stethoscope or not. The noise happens just before the gear is fully locked.

On my last flight I noticed a noise I hadn't heard before while deploying the retracting the gear. The mechanic on the field feels confident it's an issue with the gear motor/actuator. My normal Mooney mechanic says he's heard it before and likely not the actuator - though he hasn't seen it in person. Besides the noise, the gear appears to go up and down normally. Anyone else heard this one before? Videos below aren't great but I think you can get the picture from the sound. One is up and the other is down. Mooney Landing Gear Creak1 (youtube.com) Mooney Landing Gear Creak2 (youtube.com)

Earlier in this thread it was suggested that sight gauges remain accurate once down to in my case 30 gallons, but it sounds like that's not the case. So there must still be fuel in the aux tank area when the level gets down to a level the site gauges can pick up. At some point I'd like to replace the Moritz gauges with a JPI 900. If one replaces fuel senders at the same time, will they read the whole range of fuel levels? Or will they only be accurate once down to a certain level?

My question is similar to the beginning of this thread. I have a new to me Ovation and am trying to figure out how much fuel I have in the tanks. The Moritz gauges aren't working properly and the JPI fuel remaining wasn't matching what the site gauges were reading. Earlier this week the site gauges read 20 & 25 gallons, I filled to the bottom of the standpipe as shown in the picture but only 61 gallons went in suggesting that the site gauges weren't indicating enough fuel. (45+61=106, 12 gallons short of 118) I did wait a couple of minutes to make sure the fuel had made it everywhere in the tank. I reset the fuel computer to full or 118 gallons. Currently the computer says 40 gallons left while the wing gauges say 35 total. At this point I don't know if the fuel computer is accurate either but I'll have a better idea on that if I fill it the same next time around. My question is, should it have been 59 gallons to the bottom of that standpipe? Maybe the wing gauges actually aren't accurate until a lower level, say 15 gallons remaining or something?

Thanks for the replies. Sounds like I may have been over thinking it in terms of salt getting everywhere inside the airplane.