moon_dog
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Turns out the Honeywell 1CH1-6 is also used in these airplanes and I was able to locate a used one at BAS. It's en route. We will see...
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Correct. I called Otto this morning and the lead time for this item is 8-10 weeks... Curious if a similar product is approved for use. Definitely ramping up the search for a used one.
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Hi all, apparently I have a bad down-limit switch in my M20F. The symptom is that the gear down light is intermittent and doesn’t come on right away when the gear goes down. Sometimes takes way too long to come on and is quite disconcerting in the pattern. Anyway, I need a replacement. The Lasar part is the Otto P6-24014. It’s almost a grand and is a special order item. Does anyone know of an alternative to this part? Or where I might be able to find a good used one? Thanks in advance!
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Low CHTs during engine break-in
moon_dog replied to moon_dog's topic in Vintage Mooneys (pre-J models)
Thanks all. I have been continuing the break-in at high power settings, alternating RPMs. Leaning with the a "big pull+" and getting the lowest CHT to ~340 degrees. Not consuming much oil either. The mechanic says the lower temp cylinders may just take a bit longer to break in but shouldn't be cause for concern, just not what he usually sees. The baffling is very tight, so I think it's just cooling well. I'll take it. -
Low CHTs during engine break-in
moon_dog replied to moon_dog's topic in Vintage Mooneys (pre-J models)
That is comforting. I’m in the Bay Area, CA. OAT was ~15 C, so not cold! Going to find some warmer temperatures this weekend and see how she does. -
Just got a top done in my 1970 F. Picked her up for the first test flight and orbited the airport for just over an hour. CHTs were somewhat hot on climb but when I leveled off, the CHTs were surprisingly low (lowest was 305, highest 333). Power settings were correct for break-in. My A&P suggested leaning to bring the temps up, which worked a bit, but the highest I could get them was 388 highest/346 lowest. I did keep the power up the whole time until letdown. But based on everything I’ve heard, I was expecting to need to work to keep the CHTs down, not up? Anyone else have a similar experience? I plan to just keep flying it low and fast and try to keep those CHTs in the high 300s… obviously very worried about glazing. Thanks all. Edit: engine indicator is JPI EDM-830
