M20J engine not developing the power

[Mikhail]

Governor is fine but one of the blade I can fathering by hand....So removing the prop tomorrow and bringing to the shop.....

I was looking to overhaul the engine+prop in the next 4-6 months, I guess prop will be done first....

[carusoam]

Nice work, Mikhail.

All the tech detail delivered to the MS community.  It happened so fast, it was solved before I read about!

Best regards,

-a-

[jaylw314]

1 hour ago, Mikhail said:

Governor is fine but one of the blade I can fathering by hand....

  Yeah, that definitely should not happen.

[rxo188]

In my case it was the gauge. At first the needle lagged with advances in power from idle, and then the lag got longer, to the point that I could hear it at full power pitch and a few seconds later the needle caught up to max RPM. And then the needle wouldn't go over 2000 with full power. This happened over about 5 flights and 2 weeks. Had the gauge replaced and it works normally. At the time of replacement the gauge had about 3500 since new and about 600SMOH.

[Piloto]

Check the magneto timing for 25deg. A retarded magneto will drop power down. At every annual check mag timing and holding nuts.