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08-19-2019, 07:43 PM
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Join Date: Nov 2016
Location: Scottsdale AZ
Posts: 251
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Starting on pg. 5 you can see the PMag install from the ASF manual http://www.aircraftspecialty.com/PDF...RV-14%20FF.pdf
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Kevin Lippert
RV-14A N1402 Flying 03-2020
Phase 1 Complete 07-12-2020
Build Log
Zenith 750 completed 2016 -
Sold
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08-20-2019, 02:27 PM
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Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,643
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Just making sure I got this right .. timing set to 20 degrees .. the tooth marked with a sharpy is TC .. between 2nd and 3rd tooth (each tooth is 2 degrees):

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RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
Last edited by bkervaski : 08-20-2019 at 03:06 PM.
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08-20-2019, 03:00 PM
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Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,055
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I think it is easiest to find no 1 at TDC and put a -7 offset in the pmag settings to orient the system for our engine. TDC is found both on the flywheel and with a mark at the starter so it is located with confidence.
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Ser 104142, RV-14A flying - N1463 
Ser 83825, RV-8 building - N8638? 
USN Ret, Urologist, AME, Repeat Offender
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08-20-2019, 05:13 PM
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Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,643
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Well, glad I didn't decide to fire it up today ... appears I installed the drive gear cotter pins incorrectly.
The instructions say:
Make certain the cotter pin ends are secure and lay flat. The back wall of the accessory case will be close to the end of the shaft.
I took that to mean just make sure the cotter pin is laying flat on the top of the shaft with no excessive space.
After further review, I *think* what it means is to wrap the cotter pin around the castellated nut so none of it is above the shaft.
In either case, guess I need to pull them and re-do the cotter pins ...
... thinking it thorough, this will require re-timing them as well. Three steps forward, two steps back 
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RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
Last edited by bkervaski : 08-20-2019 at 05:21 PM.
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08-20-2019, 06:33 PM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,351
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Quote:
Originally Posted by bkervaski
Well, glad I didn't decide to fire it up today ... appears I installed the drive gear cotter pins incorrectly.
The instructions say:
Make certain the cotter pin ends are secure and lay flat. The back wall of the accessory case will be close to the end of the shaft.
I took that to mean just make sure the cotter pin is laying flat on the top of the shaft with no excessive space.
After further review, I *think* what it means is to wrap the cotter pin around the castellated nut so none of it is above the shaft.
In either case, guess I need to pull them and re-do the cotter pins ...
... thinking it thorough, this will require re-timing them as well. Three steps forward, two steps back 
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I am not sure if this is correct. Your first take away was correct, in my opinion, as I have seen the cotter pin coming from both Lycoming and PMAG securely bent over the shaft but tightly as it has been mentioned.
Also, if you are setting your timing at TDC, then you will need to reprogram the PMAG to fire at 20 BDC instead of the standard 25 BDC which is for the [i]O360 engines. If you have not reprogramed your PMAGs, you can set your timing at about 5 degree ATDC (about 2.5 tooth of the ring gear)
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Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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08-21-2019, 05:01 AM
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Join Date: Apr 2012
Location: Collierville, TN (KFYE)
Posts: 1,433
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In re the cotter pins, your first interpretation is correct. Just make sure the tails of the cotter pins lie flat. I sent mine to Emagair a few years ago for the checkup and firmware upgrade. They replaced the older, thinner cotter pins with current cotter pin, and they bent the tails over as you've described.
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RV-8 #81077 Super Slow Build
Dynon Skyview HDX, Titan IOX-370, Dual P-Mags, AFP FM200A FI, Whirlwind 200RV CS Prop
First Flight 11/20/2016
www.marksrv8.com
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08-21-2019, 02:33 PM
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Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,643
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Okay, good to go on the install! Ready to fire it up.
Everything passed the "prop pull-through" test outlined in the instructions.
Got a bit hot today, test run in the morning!

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RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
Last edited by bkervaski : 08-22-2019 at 04:26 PM.
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08-21-2019, 05:58 PM
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Join Date: Oct 2010
Location: Elkton, Md.
Posts: 1,652
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Doc, you?re going to like those pmags.
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Wag Aero Sport Trainer built,sold and wrecked
N588DF RV12 #336 built, sold and alive and well in New York
N73DF RV12 #244 built, sold and alive and well in Florida
N91 RV RV9 I wish I could say I built this one! Mark Santoleri hit the ball out of the park on this gem.
Currently restoring a 1978 Citabria GCBC
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08-21-2019, 07:41 PM
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Join Date: Mar 2008
Location: Dublin, CA
Posts: 1,261
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I think you should review the Additional LED Signaling section at the end of the Installation Guide. To me it almost sounds like you turned the power on after you ungrounded the p-lead from reading the LED state decriptions. Do you see the LED color burst when you apply power?
I'm certainly not an expert here but just trying to follow along since I just ordered my IOX-370 with Pmags and suspect I'll be going through the same steps at some point in the future.
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Ray Tonks
2020 Donation Paid
Titan IOX-370, Dual PMAGs, 9.6:1 Pistons, FM-150
RV-7 Fuselage in progress
* Cabin Interior - In progress
RV-7 SB Wings
* Both Wings fully skinned
* Fuel Tanks Complete - No leaks finally
* Ailerons Complete
* Flaps Complete
RV-7 Empennage - Complete (a little fiberglass work left)
Vans Training Kit # 2 - Complete
RV-7 Preview Plans
Vans Training Kit #1 - Complete
EAA Sheet Metal Class - Complete
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08-22-2019, 04:36 PM
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Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,643
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Well, fired up and everything worked as expected!
Things I noted:
* Much much much smoother idle
* Started easy, even the subsequent hot starts
* RPM drop at 1800RPM was more specific (can't think of a better description)
* Tach worked, yay! Not sure why I thought it wouldn't
* Engine seemed like a happy camper
* No surprises
Test flight tomorrow or first day I can get 4500-5000 over the field and fly circuits.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
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