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Kurt Haller RV-9A
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Date:  9-16-2018
Number of Hours:  10.00
Manual Reference:  
Brief Description:  Several small jobs...

Hours for 9/15 and 9/16 combined. Finished reattaching repaired aileron: Bolts torqued and sealed, Unriveted the damaged flap, just for fun. Will order a new QB flap on Monday from Vans.

Measured prop tracking with a dial indicator (image 1): TIR = 0.088-0.089". Well within 0.125" (+/- 1/16") recommended by AC 90-89B.

Test alternator belt tension by torque wrench method i.a.w. Lycoming SI-1129B. Was way too loose. Small pulley should hold at 11-13 ft-lb turning clockwise. After redo, torque wrench clicked when set to 132 in-lb, but slipped at 156 in-lb. Safety wire job took three tries to get tight (images 2 and 3).

Checked and reset Pmag timing i.a.w.Emagair manual. Set the prop a skosh past TDC and blew in disconnceted the manifold pressure line. All set.

Taped the electronic level to the left flap. Full-up to full-down travel is 32 degrees--right at Van's lower limit for the RV-9A. Marked 10 and 20 deg intermediate flap deployments with a 90 deg combo square resting on top of the wing with its blade touching the edge. Will need a helper to set the lines back a skosh to be read from the cockpit.

Looked at gap between Al fairings and bottom of horizontal stab. It's 1/8" or less all the way around, but the Van's supplied weather stripping needed so much trimming around vertical fin attach structure and the longerons that I'll look for something more suitable.
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Prop tracking

Prop tracking

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Re-tensioned alt belt

Re-tensioned alt belt

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Close-up of safety termination

Close-up of safety termination

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