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HIRISK's OFNA Linkage Set Up with pics and details
- Thread starter HIRISK
- Start date
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tallone09
Well-Known Member
- Messages
- 207
- Location
- murfreesboro tn
don't get this kit the ball to big for ofna linkage kit.
Combuster
Well-Known Member
- Messages
- 1,279
- Location
- Santa Clarita, California
it comes with the ofna linkage kit but it doesnt come with the blue kit
lyrad
Member
- Messages
- 20
- Location
- Alberta, Canada
So I finally broke down and did this mod because the stock linakge with the loop spring really is a POS.
Fot the most part, I used all the OFNA parts the OP suggested. I tried to get the splined adapater from the OFNA (30661) to fit on my Hitec 645MG servo. I ended up wrecking it so opted to use the aluminum arm that came with my steering servo instead.
The length between the center point of the arm to the mounting point of the sliders is roughly 3/4" of an inch which give more throw so re-adjust endpoints on the transmitter to prevent binding. The stock one is about 5/8" length.
BTW, the servo linkage kit (10724) we ordered did not come with the threaded ball. Just got an email from Dave Starks at OFNA, the ball is a 3.8mm ball stud, fwiw. We were in a hurry so I used a Du-Bro 191 2-56 threaded ball link with a Du-Bro 172 12" 2-56 threaded rod.
Since there was an extra blue collar in the linkage servo kit, I added a collar and spring on the back side of the the brake link so the brake is disengaged on throttle up.
One last note about the Du-bro ball link is the threaded end sticks out well below the nut and must be cut down otherwise it will come into contact with the link going to the carb which will prevent it from opening all the way.
I made a video of the setup in action...
The throttle link does come into contact with the radio case on braking and bends over the rod, but it doesn't seem to affect it much. Try and keep the throttle linkage bends as minimal as possible. The straighter the rod and bends, the less it will flex. You can see mine still bends a little at WOT.
Great mod ppl and thanks to the OP for starting this thread. We are running 4 Savages and the stock throttle servo link is sticking on all of them. This is a must do mod.
Cheers!
Fot the most part, I used all the OFNA parts the OP suggested. I tried to get the splined adapater from the OFNA (30661) to fit on my Hitec 645MG servo. I ended up wrecking it so opted to use the aluminum arm that came with my steering servo instead.
The length between the center point of the arm to the mounting point of the sliders is roughly 3/4" of an inch which give more throw so re-adjust endpoints on the transmitter to prevent binding. The stock one is about 5/8" length.
BTW, the servo linkage kit (10724) we ordered did not come with the threaded ball. Just got an email from Dave Starks at OFNA, the ball is a 3.8mm ball stud, fwiw. We were in a hurry so I used a Du-Bro 191 2-56 threaded ball link with a Du-Bro 172 12" 2-56 threaded rod.
Since there was an extra blue collar in the linkage servo kit, I added a collar and spring on the back side of the the brake link so the brake is disengaged on throttle up.
One last note about the Du-bro ball link is the threaded end sticks out well below the nut and must be cut down otherwise it will come into contact with the link going to the carb which will prevent it from opening all the way.
I made a video of the setup in action...
The throttle link does come into contact with the radio case on braking and bends over the rod, but it doesn't seem to affect it much. Try and keep the throttle linkage bends as minimal as possible. The straighter the rod and bends, the less it will flex. You can see mine still bends a little at WOT.
Great mod ppl and thanks to the OP for starting this thread. We are running 4 Savages and the stock throttle servo link is sticking on all of them. This is a must do mod.
Cheers!
Last edited by a moderator:
texasavage
Well-Known Member
- Messages
- 922
- Location
- Killeen, Texas
Nice post with good pics! Thanks
Yes it is a must do mod rockout
Yes it is a must do mod rockout
Thanks punisher, I was about to order 2 of the blue ones. The purple kit(10725) is twice the price but better looking and comes with everything needed for the mod.
![]-[0pa]0ng](/data/avatars/m/0/4.jpg?1394969779){kind=avatar}
- Messages
- 1,871
- Location
- Texas
So I finally broke down and did this mod because the stock linakge with the loop spring really is a POS.
Fot the most part, I used all the OFNA parts the OP suggested. I tried to get the splined adapater from the OFNA (30661) to fit on my Hitec 645MG servo. I ended up wrecking it so opted to use the aluminum arm that came with my steering servo instead.
The length between the center point of the arm to the mounting point of the sliders is roughly 3/4" of an inch which give more throw so re-adjust endpoints on the transmitter to prevent binding. The stock one is about 5/8" length.
BTW, the servo linkage kit (10724) we ordered did not come with the threaded ball. Just got an email from Dave Starks at OFNA, the ball is a 3.8mm ball stud, fwiw. We were in a hurry so I used a Du-Bro 191 2-56 threaded ball link with a Du-Bro 172 12" 2-56 threaded rod.
Since there was an extra blue collar in the linkage servo kit, I added a collar and spring on the back side of the the brake link so the brake is disengaged on throttle up.
One last note about the Du-bro ball link is the threaded end sticks out well below the nut and must be cut down otherwise it will come into contact with the link going to the carb which will prevent it from opening all the way.
I made a video of the setup in action...
http://www.youtube.com/watch?v=z0ie1u5UaRo
The throttle link does come into contact with the radio case on braking and bends over the rod, but it doesn't seem to affect it much. Try and keep the throttle linkage bends as minimal as possible. The straighter the rod and bends, the less it will flex. You can see mine still bends a little at WOT.
Great mod ppl and thanks to the OP for starting this thread. We are running 4 Savages and the stock throttle servo link is sticking on all of them. This is a must do mod.
Cheers!
awesome - I'll be giving this a try. Plus rep for taking the extra time for all this. Extremely clean setup.
thesmilingpirate
Well-Known Member
- Messages
- 355
- Location
- Long Island, New York
I just received my parts for this mod in the mail (10724, 10704 and 30661) and the stud ball was not in the 10724 package.
Some show the stud ball in the picture like this:
and some don't show it (10724)
And I ordered mine from RC Planet which shows it in the picture but it didn't come in the package.
Not sure why. But now I need to find one.
Anyone know the size of the one that's in the kit's?
thesmilingpirate
Well-Known Member
- Messages
- 355
- Location
- Long Island, New York
thesmilingpirate
Well-Known Member
- Messages
- 355
- Location
- Long Island, New York
For those looking for the stud balls, I tracked down an OFNA part number that seems to be similar if not the same as the one that came with the original 10724 linkage kits.
OFNA Part number 17103.
Not sure why the guy at OFNA didn't suggest these as opposed to the other ones but I'm ordering these. They come in a pack of 4.
Hope this helps everyone who was searching for this part.
OFNA Part number 17103.
Not sure why the guy at OFNA didn't suggest these as opposed to the other ones but I'm ordering these. They come in a pack of 4.
Hope this helps everyone who was searching for this part.
dociledragons
Active Member
- Messages
- 52
Thanks, for this. I just heard of it.. only cost 13.56 (for all 3 packages) on ebay. yay
Filabob1
Well-Known Member
- Messages
- 137
- Location
- Cheyenne, WY
Clean set up! I like it. I'm pretty sure I have those parts laying around somewhere may give it a shot!
savage01
Member
- Messages
- 23
Very good, Thanks!So I finally broke down and did this mod because the stock linakge with the loop spring really is a POS.
Fot the most part, I used all the OFNA parts the OP suggested. I tried to get the splined adapater from the OFNA (30661) to fit on my Hitec 645MG servo. I ended up wrecking it so opted to use the aluminum arm that came with my steering servo instead.
The length between the center point of the arm to the mounting point of the sliders is roughly 3/4" of an inch which give more throw so re-adjust endpoints on the transmitter to prevent binding. The stock one is about 5/8" length.
BTW, the servo linkage kit (10724) we ordered did not come with the threaded ball. Just got an email from Dave Starks at OFNA, the ball is a 3.8mm ball stud, fwiw. We were in a hurry so I used a Du-Bro 191 2-56 threaded ball link with a Du-Bro 172 12" 2-56 threaded rod.
Since there was an extra blue collar in the linkage servo kit, I added a collar and spring on the back side of the the brake link so the brake is disengaged on throttle up.
One last note about the Du-bro ball link is the threaded end sticks out well below the nut and must be cut down otherwise it will come into contact with the link going to the carb which will prevent it from opening all the way.
I made a video of the setup in action...
The throttle link does come into contact with the radio case on braking and bends over the rod, but it doesn't seem to affect it much. Try and keep the throttle linkage bends as minimal as possible. The straighter the rod and bends, the less it will flex. You can see mine still bends a little at WOT.
Great mod ppl and thanks to the OP for starting this thread. We are running 4 Savages and the stock throttle servo link is sticking on all of them. This is a must do mod.
Cheers!
savage01
Member
- Messages
- 23
Thanks for this part #!
roger25118
Active Member
- Messages
- 79
- Location
- Kimberly, WV
As soon as I get my Savage X, I got to do this.
roger25118
Active Member
- Messages
- 79
- Location
- Kimberly, WV
After getting all of the parts together, I found out that the Ofna part # 17103 is way to large, plus the Ofna HD servo horn don't fit my Hitec clone servo. So now I still have to find the ball studs & a servo horn.
- Messages
- 4,790
can you possibly post some pics of what ya have, the servo horn outta have some adaptors with it to fit most all servos, as for those little balls for the linkage, luckily I had some of them but you can still get them from most hobby shops. ask and maybe someone will have a couple you can get off them.....
http://www.ebay.com/sch/Radio-Contr..._rvr_id=733019439706&_nkw=17103&;toolid=10001
either that or just get these they will work fine
http://www.ebay.com/sch/Radio-Contr..._rvr_id=733019439706&_nkw=17103&;toolid=10001
either that or just get these they will work fine
roger25118
Active Member
- Messages
- 79
- Location
- Kimberly, WV
The servo that I have is a Tower TS 170 which is a Hitec clone, none of the adapters fit it, but a metal Hitec servo horn fits fine. As for the ball studs, the 6.8mm is too large. I believe that a 4.8mm is the size
- Messages
- 4,790
Not sure on the size you may be right there, I had a couple in my spares bin and used them.. I think they were for steering linkage on my old 1/12 pan car actually..... maybe look at some of the small heli parts they use balls such as these on some of their linkage setups.....
- Messages
- 4,790
http://shop.dubro.com/c/car-trucks_ball-links
could always go to the hobby shop and get these from Dubro. they will fit well and come with the linkage end and ball so you outta be all set
could always go to the hobby shop and get these from Dubro. they will fit well and come with the linkage end and ball so you outta be all set
rikkidy
Well-Known Member
- Messages
- 158
- Location
- Mission B.C.
I notice no return spring on the carb in the pics is it not required?
