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« on: October 16, 2005, 06:28:15 PM »
Thank you Waiter. The thump is an engine thump, like it skips a heart beat. We did a detailed inspection on the whole engine assembly yesterday. We tighten every significant nut, check leads, crimps, fuel flow, checked the spark plugs cables with a tester, adjusted the mixture travel cable, and cleaned the whole assembly for moisture. Took it for a test flight and tried to re-create the thump scenario and I couldn't not make it happen. I had a pretty smile on my face. I just need to take it up to 10,000 ft and evalute the performance which is where i first noticed the malfunction and do the final tune up to the new carburator. According to a Klaus Savier from Light Speed Engineering, I might also have to change the CDI cable from a twisted shielded pair, to a single shield conductor in an effort to reduce inductive coupling on the wires. I'll post further results..... Nevertheless, I greatly appreciate all your "educational" check list and probable causes which will definetly help me understand the future similar scenarios.
Afif Saybe
LongEZ HR-ATQ, Honduras