RV-9A Firewall Forward/Engine

Thursday, February 17, 2005

Prop update

I received a quote from Sabre Mfg for the 4" prop extension. Ouch... $515. This includes all the bolts, extension, crush plate, etc. (The extension is only needed since I'm using the SJ cowl. You don't need this if you use Van's cowling.)

I also swapped some emails with Craig, we've changed my order from a 70" pitch to a 72". I noticed on my quote that he said 190mph @ 2800rpm... well.. the engine never revs that high. I also want a cruise prop, not a climb prop.

FYI: The bolt holes in the Catto prop are 7/16". The prop hub is 4.375, so you do not need the spacer indicated on Van's drawing.

Monday, February 14, 2005

Links / Decisions

I think I'm going to get a 40amp alternator from Niagra. Yea.. it's internally regulated. He tells me they haven't had a failure yet and that you can turn off the alternator with the field wire. I'm comfortable with it.

http://www.niagaraairparts.com/

I think I'm going to pick up the experimental starters from the guy on eBay. $180. I've seen one report from an RV builder who had 30 hours on one with no trouble yet.

http://stores.ebay.com/Auto-Express/Airboat-Starters-Textron-Lycoming.html

Here is a page detailing a Superior engine build-up... not too bad:

http://brian76.mystarband.net/SuperiorTextPics.htm

I've watched the Skyward Tech O-320 rebuild video.. not as good as I was hoping I guess but not bad. I've also been reading the Lycoming Overhaul manual.

Mahlon at Mattituck as quoted me some really good prices on a mag harness and an oil pump. I need a new oil pump to comply with the AD.

I also may have the opportunity to put the engine on a test stand and run it. Seems like it might be a good idea, flush out any issues before I fly it.