fullforward Posted April 20, 2011 Report Posted April 20, 2011 Hi Everyone, since last weekend I have a problem on my 1965 E fuel injected IO360. The fuel pressure needle increasingly started to "dance" over the whole green arc over the last couple of flights. With boost pump on the same result at a slightly higher fuel pressure. Now additionally my No 4 cylinder stops firing about 5 seconds after starting the engine, then comes back about 20-30 seconds later. This happens equally with a warm and cold enginge. Mags have been o'hauled 10 hours ago and seem to be fine. I wonder if that could be a fuel pressure problem. Does anyone have any experience with such a phenomenon? Thanks, Frank
Piloto Posted April 20, 2011 Report Posted April 20, 2011 Check that the fuel injection servo gasket for the side plug has been replaced as per Airmotive Mandatory Service Bulletin. A faulty gasket will cause the fuel pressure variations and eventually lead to engine failure. I have experienced the same problem you describe for a cylinder not firing after start. After cleaning the injection lines, cleaning the plugs no success. Finally I decided to switch back from Exxon Elite to AeroShell 10W-50. Problem solved. It appears that the Exxon oil was not reaching the valves lifters quickly enough causing a temporary stuck valve condition. José
fullforward Posted April 20, 2011 Author Report Posted April 20, 2011 Great, thanks for the input. Yes, I changed from AeroShell to Total Aero 15W-50 (Mooney located in Europe) about 20 hours ago. I will check the Airmotive SB and switch back to AeroShell. Frank
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