11-21-2010, 06:16 AM
I did remove some ESU Loksound from some unused Athearn Genesis F7 yesterday. This night I thought how about using motor and trucks of the F7 in the CF-7?
A F7 and and CF-7 with the old RTR motor (not the A-line converted) have been disassembled in minutes. First bad new, the F7 trucks do not fin in the CF-7.
But the overall length of the F7 motor plus transmission fits perfect between the CF-7 trucks. That is what I expected and the reason why I gave it a try. It looked like the F7 motor mount would fit in the CF-7 too but that is not true. The CF-7 motor has the mount not in the middle. I glued a fitting rectangle of styrene in the motor well and mounted the F7 motor (it is the old original ROCO motor) on the new base with double sided tape. Very simple and good enough for a small motor. I did test that simple method on several engines.
The PCB of the CF-7 was easy put on top of the new motor and it was time for a first test drive.
That's it
The Athearn RTR CF-7 runs like an Atlas GP40!
I know that conversion is somewhat "unusual". You do not want to sacrifice an expensive Genesis engine to upgrade an RTR model. But I love that CF-7 so much and the F7 are of very little use to me today I had to do it. What you need is a good motor with balanced flywheels and a nice transmission not the unbalanced motor/fly-wheel assembly and universal transmission from A-line to make the CF-7 a great model.
![[Image: Img_0413.jpg?t=1290345172]](http://i966.photobucket.com/albums/ae149/faraway52/Misc-1/Img_0413.jpg?t=1290345172)
![[Image: Img_0412.jpg?t=1290345211]](http://i966.photobucket.com/albums/ae149/faraway52/Misc-1/Img_0412.jpg?t=1290345211)
ps. Yes, I still hear a very low noise coming from the RTR trucks...
A F7 and and CF-7 with the old RTR motor (not the A-line converted) have been disassembled in minutes. First bad new, the F7 trucks do not fin in the CF-7.
But the overall length of the F7 motor plus transmission fits perfect between the CF-7 trucks. That is what I expected and the reason why I gave it a try. It looked like the F7 motor mount would fit in the CF-7 too but that is not true. The CF-7 motor has the mount not in the middle. I glued a fitting rectangle of styrene in the motor well and mounted the F7 motor (it is the old original ROCO motor) on the new base with double sided tape. Very simple and good enough for a small motor. I did test that simple method on several engines.
The PCB of the CF-7 was easy put on top of the new motor and it was time for a first test drive.
That's it
The Athearn RTR CF-7 runs like an Atlas GP40!
I know that conversion is somewhat "unusual". You do not want to sacrifice an expensive Genesis engine to upgrade an RTR model. But I love that CF-7 so much and the F7 are of very little use to me today I had to do it. What you need is a good motor with balanced flywheels and a nice transmission not the unbalanced motor/fly-wheel assembly and universal transmission from A-line to make the CF-7 a great model.
ps. Yes, I still hear a very low noise coming from the RTR trucks...
Reinhard