What was found
(CAN) TAKEOFF AT 43 HG - ON LEG RETURN TO HOME BASE. FIRST POWER SETTING TO 40 HG - THROTTLE BACK - DID NOT RESPOND. SECOND POWER SETTING TO 35 HG - PILOT HAD TO PULL THROTTLE QUITE FAR BACK AND THEN FORWARD TO SET POWER. WASTEGATE, THROTTLE LINKAGE CHECKED. INSPECTION OF TURBO SHOW HEAVY RESIDUES OF GRAY SUIT ON COMPRESSOR HOUSING AND SOME ON EXHAUST IMPELLER. REPLACED TURBOCHARGER. EVIDENCE OF IMPROPER COOLING AFTER FLIGHT OR RUN-UP .LATELY: DAMP, HEAVY HOT CLIMATE.