Nov 11 2012

Fuel Servo Install

As soon as I returned from Myrtle Beach, I installed the rebuilt fuel servo on the plane and took her up for a test run.

Tweedy started better than ever and I now have plenty of power and can easily get 2700 rpm. I did a full power run and got up to 182 kts true at 1500 ft. Sweet.


The only problem is the vibration issue hasn’t changed. Still got it.

I have been fighting this issue since my return from my “western” tour trip. I have rebuilt the the electronic ignition systems (overhaul of the Pmag, replacement of wires and coils), replaced the Lightspeed coils, replaced the plugs, replaced one of the cylinders, replaced the engine mount, overhauled/replaced the hydraulic lifters, did compression tests, wobble test, checked everything I could think of, had the engine off the airplane twice, and nothing has made a difference.

The engine went from running great to having a noticeable vibration in one night. When I landed in Santa Fe, it was running great. When I took off the next mooring, I had a vibration which I instantly noticed. After almost 3 months of trouble shooting, I have finally made the decision to just take the engine off and rip it apart to have all the internal components inspected and rebuild the lower end.

If after rebuilding the engine if I still have a vibration, I will know there is absolutely nothing wrong with the engine, it will not self destruct on me and I will just have to live with the vibration.

Tomorrow let the fun begin.

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