SonexBuilders.net

As someone who scratch-built a Sonex, and is currently building an RV-7, I can say one thing about the Sonex plans. The best in the business! No dig on Vans, but their plans are hard to follow for the small details, and I find it odd that some critical information is buried in the "instructions...

I love having a sight gauge. I have it calibrated in RED for 3-point (on the ground) calibration, and in BLUE for level flight. My sight tube disappears through the bottom of the panel, and is at a bit less than 5 gal when the liquid is no longer visible. The fuel tank has blue Sharpie lines on it f...

I stand by my comments for the VW.

Hopefully you can learn from my mistake. I dutifully measured 4", and installed the probes. Later, when I fit the cowl, I found that the locations on #2 and #4 interfered (hugely) with the inside of the cowl. I had to bend them nearly 90 deg, and even then they still rub. And when I bent the fi...

Red firesleeve does the job nicely. Take care you do not select a dimension that fits too tightly over the fuel line: a loose fit that does not have to be massaged over the line is good. And make sure you seal off both ends of the sleeve. To keep the fire sleeve from soaking up oil or fuel, use red...

Mike, I always appreciate you sharing your Aerovee experience. Thanks! I made covers for those access holes I added to the baffles, for the top aft nuts. You can see a #6 screw, with a rivet tail next to it. An aluminum pop rivet holds the cover off to the side and it pivots on that rivet. Clever!!

I scratch built, but still lots of useful information (I think) on my site: http://www.mykitlog.com/users/index.php?user=mikesmith&project=698 Make sure you're looking at the Sonex project. I have an RV-7 going on there, too. Welcome, good luck, and don't be afraid to ask lots of questions of th...

My own personal preferences based on 8 years and 560 hours on the engine: - For the first 2 years I did everything by the book. That would be my first recommendation. Do it, see what happens, and get to know the engine. - The first couple of years of flying, I re-torqued the heads every 50 hours. Du...

My understanding is aviation oils should not be used in a VW. The explanation I have heard (so take it for what it's worth) is that the molecules in aviation oils are larger than in something like the VR-1, so don't pass through the system as they should. And yes, you need the zinc. I think Sonex re...

The Aerovee has 2 pressure releif valves, one front and oe rear. You may want to make sure the long spring did not get put in the back, that would do away with the bypass for the top mount oil cooler if it gets plugged or very cold which could cause low oil pressure even it the pump is working OK. ...

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Re: Where are the instructions?

Re: "Sight" Fuel Gauges

Re: EGT Probe Location

Re: EGT Probe Location

Re: fuel line insulation

Re: Re-torquing heads

Re: Builders web sites?

Re: Re-torquing heads

Re: Aero Shell 20W50 used in Areovee (non-turbo)

Re: Wildly Fluctuating Oil Pressure