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Showing results for tags 'injectors'.
Found 2 results
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This is killing my IA and I... My IO-360-A1A seems to clog injector nozzles every couple flights. We pulled the screen after the fuel pump and cleaned it, overhauled the fuel divider, replaced the throttle body & replaced the fuel line to the flow divider, and cleaned the flow divider. Flew it yesterday for about 20 minutes, and today all the nozzles were blocked (only one even had light showing through). We're at wit's end... A few details: The grit in the inline screen was lighter colored while the "globs" in the nozzles and flow divider have all been very dark. The nozzles feel "sticky" when removed for cleaning. Anti-seize was used on the nozzles after the first cleaning, but has since been cleaned out of the ports' threads. The old throttle body had rust in the inlet chamber and on the filter, and the spring was stuck in some unidentified "gunk" at the bottom. We didn't know how bad the rust was so we replaced it outright. The only parts on the metered side of the throttle body that haven't been cleaned or replaced/overhauled are the lines from the divider to the nozzles. Those are next for cleaning if cleaning all the nozzles doesn't work today. Thoughts? Ideas?
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Wondering what suggestions I can get on this. A little back ground first. '78 M20J 201 IO-360 ~1500 hours SMHO fly ROP per POH cylinder #3 plug fowled out a week ago (see picture) all new plugs and now I am seeing Cylinder 3 EGT highest and CHT lowest (see pictures) in all phases of flight. Oil consumption, maybe a quart every 6-8 hours and all oil analysis come back with excellent results. I am thinking bad injector and going to Gami. Thoughts and comments much appreciated.
