cyrill

The problem in my case was the alternator. I overhauled it and everything went back to normal.

Right, updated.

Thanks, yes I plan on checking the wiring first with my A&P. It's a M20J from 85 - 14v

I had the low voltage alert and Alt field breaker popping mid flight a couple of times now. I haven't seen the issue on the ground and always seem to happen in the air. I've reviewed the different posts here on the subject to try to get a better understanding of what's going on. My next step is to follow the troubleshooting guide from Zeftronics (got the R15300 model). I also downloaded the voltage monitoring data from my JPI 900 and that's what it looks like when it happened. I thought I would share and get your thoughts. During this flight, the Alt Field popped where the Amps go to zero, then put it back in but popped right after again. During this flight, I got the low voltage alert but the Alt Field breaker didn't pop.

thanks all for the wealth of information here. What is puzzling here is it seems that there was some sort of glue on the race to keep it in place? I’m wondering if the issue was discovered previously but not fixed it properly.

Yes, confirmed that it was the correct bearing and race (Timken Bearing 08125-20629). Here is a picture of the bearing that we replaced. I ended up getting a wheel assembly replacement from Altair aircraft: https://www.altairaircraft.com/products/40-87-mooney-m20j-cleveland-nose-gear-wheel-assy-5-00x5?_pos=3&_sid=2923ba4e2&_ss=r

The issue with mine is that the wheel bearing (new) is loose in the wheel assembly which is not airworthy according to my IA. Not sure how that came about.

Can you use 40-87C model as well? The only 40-87 model doesn't look in its best shape from the pictures, maybe it's just paint. I was wondering about the middle hole cracked?

Hi folks, I'm looking for a wheel assembly Cleveland 40-87 for my Mooney 201 if anyone has a spare one by any chance. The full assembly or just the outer half where the valve stem is. I would prefer a more economical option than brand new. I called baspartsales, faethaircraft and look on ebay but no luck so far. Thanks,