Steering Springs

Which type did they send? A or B?

B is the spring I'm using. The one in A looks like what is used on the Mail tailwheel.

My guess is that p/n 2632-sub is the individual spring. P/n 3239 is the entire kit.

Carl

@stinsono

They are like the "B" spring except I would say heavier--made from larger wire.  The springs on my plane now look just like the "B" spring and these new ones are much stiffer.

The Univair 2632-sub Stinson spring looks to be lighter than what I got.  At least in their catalog picture.

What is the "A" spring?

Your spring choice depends on which tailwheel you have. The B springs are the ones commonly used with the Scott (now Bushweel) tailwheel. If you have an original equipment tailwheel or a Maule or other tailwheel you may use a different spring.

A little research somewhere on this site will yield you a lot of information and discussion concerning tailwheels, springs, and proper rigging to minimize shimmy.

For my 1000th response to this question, the only correct steering springs for a 3200 tailwheel are P/N 3239.

Univair is not up to date.  The springs they quote are for the little bitty original scott 2000 tailwheel.  I have bought lots of p/n 3239 both from Univair and Spruce.  I am tired of having to repeat this over and over and over.  Please, people, do your own research and do not depend on a sales person who has never flown and maybe never seen a Stinson.

@lawheelock

Yes, Larry, thanks. I hoped you would reply. I am the original poster & I did do my own research & wanted to verify that what I bought was correct.  I think it is.  Please read the first post of this thread.  David

@lawheelock

The springs I got are much heavier than those pictures as "B" above. David

David,

I will attempt to post a photo of mine with the 3239 springs.  Install taught but not tight.

David, if yours are much heavier than in the reply photo above, you have the correct ones.  See my photo.

@lawheelock

Thanks Larry.  I do have the correct springs.  Will be reworking my tailwheel installation today or tomorrow with a new leaf spring, new bracket assembly & bushings, 3239 springs & new chain & clips.  Will clean & regrease the 3200 tailwheel as well.   Thanks again.  David

I got the tailwheel components put all back together & now have a question about the rigging.  Proper rigging calls for the springs & chains to have no tension on them yet not be loose. This is giving me a lot of trouble getting right because the length of the chain is the only real adjustment and each chain link is approximately 1/2 inch in length.  3 links are too tight & 4 links are loose.  I know it's not supposed to be tight so I guess loose is the way it has to be.  Is there something I'm missing with this?  Thanks for any & all comments.  David

@dsrothmac-com  David, not sure if your airplane is a dash 3 like mine, but the geometry differs from the small tail Stinsons, and requires more chain lengths.  I have the same issue.  I have either 4 or 5 chain links on each side(I'll count them when I go out to my hangar this p.m.), which leaves a little slack in the linkage.  I figured better a little loose than to have tension.  Only issue is a little loosey-goosey when taxiing.   Dennis Crenshaw.  N6102M.

Check out Garys video from the Stinson Summit about tailwheel geometry 

https://youtu.be/AmD6iiQic84