Kelpro999

Update; purchased a new one from LASAR/Mooney and it also came with the same problematic hole locations, identical to the replacement I purchased before. Frank requested I send back my original cracked one back. I did so they used it to check their tooling. Evidently there was some errors made when they increased hole sizes and the tooling during an engineering change late’62. Frank says 17 have been sold since 2017, but only mine was returned. That may explain why the drawings match my original part & part number but not the other 16 sold that were not returned and as far as we know were installed. Anyway, they were able to press form a new one for me without holes so at least they are still capable of press forming vintage parts.

Agreed.

The C gets graphite in about four locations but anyways, the idea is to lubricate the top of the shock shaft under the retainment collar as it passes through the gear frame then taxi test. If that doesn’t do it, then move onto loosening the shock, lower bolt and taxi again. Eventually bolt by bolt the problem should be found. If it is in fact, the rubber rubbing on the shock shaft, then some tire talc can eliminate that. Without hearing the squeak ourselves, we could be completely wrong and possibly a wing skin, frame or spar issue.

It’s literally specified in the Mooney service manual.

Give your shock disc retainers a little shot of graphite powder below the collar.

That’s from children chewing on window sills while watching cool airplanes fly by.

I’m for removing all nonproductive energy consumption on any ascent as soon as possible.

Does George have another profile?

When I’m looking for sounds like that I use a three-quarter inch 3 foot long piece of A/C hose. It helps put my ear in places I can’t get to. You can also remove the alternator/generator belt, tie it back and retest.

At 58 years old things tend to leak from time to time.

It’s the thinner one that’s been work-hardening and cracking. The new one I picked up some time ago and never checked it against the cooler thinking why would that dimension be wrong but here I am. Sometimes great deals are not so great when visibility improves.

That’s the route I have to go at this point. The part is NOS that was sitting on the shelf somewhere on eBay with the correct part number, but no supporting paperwork. IA scratching his head along with me. Frank couldn’t trace when and where it was made with only the Part number etching prior to me spraying primer. six week lead time.

The photo of the new part setting on top of my old part has penciled in dimensions, and printed dimensions are what I received from Frank as what it’s supposed to be.

I know this is an old thread, but is there any possibility you remember if you had any issues mounting the cooler to the four bolt pattern in the new part? I have a revision G that two of the four bolt holes are approximately 1/8 inch off. Your photo looks similar to mine. Kevin

It might be OK if the photos were before any work was performed. What was the result of each inspection? Looking at the fuel cap and landing gear it most likely has lower wing spar cap corrosion.