Eliminating Bendix D2000/3000 Magnetos

[walkman]

My (very) detailed write up of my project to eliminate the Bendix 3000 and associated single points of failure in ignition systems is here: https://dl.dropbox.com/u/12196944/El...g%20D3000.docx

In short this involved the replacement of the D3000 "dual mag" with a regular Bendix mag mounted on a D3000 impulse coupling/gear and an electronic ignition system from EFII/Protek.

Works great so far.

Will update the writeup with pictures and detailed before/after performance data in a week or so.

[gclark]

Waiting for your update. Should be good.

[mannanj]

I'm in the process of changing out my Bendix 3000 Dual Mag with the EFII/Protek totally redundant dual Electronic ECU's/pickups/batteries, etc. I chose not to go with the one mag/one electronic conversion.

Robert sure puts out a nice set-up, and with this particular kit, he sends along a dowel thats attached to the mag hole cover plate that plugs the mag pilot shaft bearing hole drilled into the crankcase. (This is hard for you two mag guys to envision but it's necessary for the "D" suffix engines.)

It's been hot here and I've had 3 days of interruption this week so it's going a lot slower than I would like.

Will report later.

[DLussier]

Thank you for the detailed info.
I have the same Bendix magneto and would like to know the weight difference between the 2 setups.
This Dual mag is so heavy....
Thanks
Denis

[walkman]

Originally Posted by DLussier

Thank you for the detailed info.
I have the same Bendix magneto and would like to know the weight difference between the 2 setups.
This Dual mag is so heavy....
Thanks
Denis

I'm not in my hangar, but I recall the dual mag weighing around 10.5 lbs and the single mag in the 6 lb range. When you consider the weight of the ecu, sensor, and escpecially the ignition coil pack I doubt you area saving much weight.

[walkman]

Originally Posted by mannanj

I'm in the process of changing out my Bendix 3000 Dual Mag with the EFII/Protek totally redundant dual Electronic ECU's/pickups/batteries, etc. I chose not to go with the one mag/one electronic conversion.

Robert sure puts out a nice set-up, and with this particular kit, he sends along a dowel thats attached to the mag hole cover plate that plugs the mag pilot shaft bearing hole drilled into the crankcase. (This is hard for you two mag guys to envision but it's necessary for the "D" suffix engines.)

It's been hot here and I've had 3 days of interruption this week so it's going a lot slower than I would like.

Will report later.

Manan, are you working on this in ga, or fl?

[mannanj]

Originally Posted by walkman

Manan, are you working on this in ga, or fl?

I'm in Valkaria, FL. (X59). 7 seven zero fife 1 niner 4999 if you guys have any questions.

I haven't weighed any of the components yet but subjectively, I'm guessing my system will weigh about 10 to 12 lbs. more because I'm adding an Odyssey 625 backup battery to assure total redundancy.

I did put the battery aft to help with my already forward cg.

[walkman]

From two legs I did this weekend.

https://dl.dropbox.com/u/12196944/En...rformance.xlsx

I have noticed that my fuel burn might be a little better and I have also noticed EGT's down. Not so much data to go on yet.

[mgon]

Walkman

Just completed same, EIGH 1 from Protek
and single mag.
0320-H2AD
I'm getting a drop of about 250 rpm
from both to EI only
No miss, idles 750 rpm w/ both
will only idle 400 rpm w/ EI only.
Check all connections.
What is yor Mag Drop

MG

[airtractor8]

Originally Posted by mgon

Walkman

Just completed same, EIGH 1 from Protek
and single mag.
0320-H2AD
I'm getting a drop of about 250 rpm
from both to EI only
No miss, idles 750 rpm w/ both
will only idle 400 rpm w/ EI only.
Check all connections.
What is yor Mag Drop

MG

I am contemplating doing the single mag and EI conversion on my H2AD as well and would appreciate some details of your experience doing the conversion .
Can you give some details of the single mag p/n you used for the conversion. The bendix single mag needs to have right hand rotation to suit the H2AD. Did you find a suitable mag ( they all seem to be left rotation) or did you have a mag shop convert one to right hand rotation? Did you use the original mag drive gear/coupling setup or something modified? Are you using an impulse coupling on the mag to start the engine or are you starting on the EI?
Thanks in advance for any help
Regards
Graham
RV6-H2AD