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Dans RV8
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Date:  9-15-2018
Number of Hours:  3.00
Manual Reference:  
Brief Description:  Engine Control Assembly

lPractice makes perfect.

I was able to remove/replace the mixture control without major disassembly of the other controls.

I had an interference yesterday with the mixture control cable and the landing gear box. The hole needs to be about 1/4" bigger. I stopped at Ace and bought some Dremmel tools and quickly reshaped the hole and de-burred it. Much nicer fit.

I started again with the throttle cable. I got a perfet fit - both limits hit the feeler gauge on the stops. I moved on to the Mixture. In routing the cable, i remembered that I need to put on the nut for the ball joint firewall penetration seal. Ooops! I forgot to do that on the throttle. It will have to come off again.

Moving to the Prop control, the fit is good. It is time to rivet up teh bracket that I machined on my CNC mill. I designed a little angle doubler to help stiffen the bracket. I could torque just a little. The angle shoul take all of that out.

I decided I should use flat rivets on the control cable attachment angle bracket. The longest AN426-4 rivets I have are -5. I need a -8 to -10. I placed an order with Vans. I should have parts when I am back from my business trip.

I also ordered AN3-11 and -12 bolts for the rod end connectors. Vans uses a jam nut that will certainly do the job, but I like the security of using a castle nut and a cotter pin.

Lastly on the Aircraft Spruce order were four AN823 45 degree fittings for the oil cooler hookup. Those were pushing $100.

I consider the Control Cable problem solved. The proof is left to the student.
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Installed Quadrant - Throttle & Mixture functioning

Installed Quadrant - Throttle & Mixture functioning

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Stiffener for the Prop Control

Stiffener for the Prop Control

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