I own a 1983 M20K that had the turbo conversion done on it to essentially make it an M20T. Since purchasing it 4 years ago the plane has flown roughly 400 hours and apart from losing a magneto in flight (not a fun experience), it has flown almost flawlessly with one ongoing and notable exception. On virtually every climb just after levelling out, the engine seems to momentarily lose power, as if there was a fuel pump blockage or water in the gas. Before every flight we are careful to always check water in the fuel cells and pull the fuel discharge lever on the floor so water is not the issue.
After a momentary loss of power, everything seems to come back normal and the problem does not seem to persist. It is unnerving though, particularly in heavy IMC.
Anyone else out there experience anything similar? Any ideas on what it could be?