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Re: Darick's Sonex #1646

PostPosted: Sat Jul 30, 2016 10:35 pm
by kevinh
Hi Darick,

Thank you for your great wing mating write-up! It will be great extra help when I get to this point! -Kevin

Re: Darick's Sonex #1646

PostPosted: Sun Aug 21, 2016 7:33 pm
by Darick
The panel is as complete as possible without the engine in place. So I started working on the engine this week.
For those AeroVee owners...the outside of the case looks like a moon landscape...lots of ugly casting marks. Paint will hardly cover all that up. Has anyone tried to finish the outside for a nicer look or am I just too overly picky and wasting time? If you did make it look nice, how did you do it?...Dremel tool with wire wheel...sandblast?

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Re: Darick's Sonex #1646

PostPosted: Sun Aug 21, 2016 7:58 pm
by Darick
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I got the preassembled hub option. If your connecting rods come with the "star" type bolt heads, you will need a 12 point 11mm socket.
Also there is a way to check the connecting rod bearing clearance with "plastigage", as mentioned in the assembly manual that refers to Tom Wilson's VW engine repair book. Mine were all fine but I wondered what you would do if the clearance was out of tolerance.(?)

Re: Darick's Sonex #1646

PostPosted: Mon Aug 22, 2016 12:24 am
by wlarson861
Just remember all those ugly pits and peaks in the surface increase the surface area of the case. More surface area = more cooling. It's an airplane engine not a 32 Ford hot rod!

Re: Darick's Sonex #1646

PostPosted: Mon Aug 22, 2016 11:02 am
by Darick
Excellent point! That's enough to change my mind. Thanks!

Re: Darick's Sonex #1646

PostPosted: Sun Sep 18, 2016 9:09 pm
by Darick
AeroVee assembly push rod ends....
After cutting to the correct length, the small ball ends must be pushed in. Mine had a LOT of interference and would not go in even when the tube was heated with a heat gun. I solved this finally by sanding down the part of the ball end that gets inserted into the push tube, as the first step.

150 grit, slowest drill press speed, for 2 minutes
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The second step was to increase the push rod ID by running a 5/16 drill into the end and then sanding a little at a time until the ball end would go in about half way.
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Test fit before heating, Ball will slip in half way...
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Finally, the tube was heated with a heat gun, ball inserted, then tapped in....
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Remember to clean out the tube before tapping in the ball end, much like you would clean out a gun barrel, throughly!

Re: Darick's Sonex #1646

PostPosted: Tue Oct 11, 2016 6:16 pm
by Darick
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Engine is on the plane!
Next step is wiring the ignition and MGL E1 engine monitor.
Flying goal is first quarter of 2017.

Re: Darick's Sonex #1646

PostPosted: Fri Oct 28, 2016 11:25 am
by Darick
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Trying to keep up with Bryan's high standards, I've decided to carve my prop too. It will need a small weight on the short end.

Ok I admit it. I'm not carving my prop. This "torque reaction arm" was how I kept the crank from rotating while I torqued the gland nut.

Re: Darick's Sonex #1646

PostPosted: Sun Nov 06, 2016 9:25 pm
by Darick
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The only wires remaining to be hooked up are CHT and EGT.

Re: Darick's Sonex #1646

PostPosted: Mon Nov 21, 2016 8:20 pm
by Darick
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Rather than add a separate deflector to the bottom mount oil baffle I just cut out the opening on just three sides then bent up. It took a lot of trial fitting and cutting but I like the way it turned out.