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View Full Version : running out of threads on the axle collar 86atc250r



fordnut79@hotma
05-25-2015, 03:17 PM
216317216318216319216316So I have a lonestar axle for my 86 atc250r, a lonestar bearing carrier and an 86 swingarm,but when I put it toghether I seem to be running out of threads on the axle collar .Posting pics and measurements if anybody can help.The large nut is only engaged 5 threads. Is that enough?
I have heard of some people putting a spacer between the splined collar and the brake hub?
And Should there be a bushing on the axle sprocket hub or just the aluminum hub flange.

Red Rider
05-25-2015, 04:05 PM
Where is the collar that goes over the snap ring on the axle?

fordnut79@hotma
05-25-2015, 04:25 PM
The nut is already recessed for it ,I think they did this in
2163201986?

Red Rider
05-25-2015, 06:00 PM
And Should there be a bushing on the axle sprocket hub or just the aluminum hub flange.Yes, there is supposed to be a zinc coated steel ring where it comes into contact with the bearings & seals.


The nut is already recessed for it ,I think they did this in 1986?That's a new one to me. Mine is an '86, but doesn't have the recess on it. Maybe it was '87 or later that they did that?

fordnut79@hotma
05-25-2015, 06:27 PM
Anybody got a pic of the steel ring or how thick it should be. That would help bring things more to the left and help engage a few more threads. I think the lonestar axle I have is an older 3rd gen one as well.

Red Rider
05-25-2015, 07:10 PM
Mine is installed, so no pics available, but LSR lists them on their website.

http://www.lsracing.com/axcalibar-racing-axles-axcalibar-racing-axle-sprocket-hub-steel-insert.832.70.atv-utv-racing

Dirtcrasher
05-25-2015, 11:42 PM
86 did delete the separate step collar and just bored the nut to hold the clip.

Stock disc hub so no ring is needed. It may be your axle but that just pushes on the clip so 5 threads wouldn't scare me.....

fordnut79@hotma
05-26-2015, 08:20 AM
Can anybody confirm the washer at the sprocket hub end. I don't see any witness marks for one. the lonestar axle I have is an older 3rd gen one as well. The ends are a lil different I think. The only markings stamped on it are lonestar 07 01 02.
216352

bkm
05-26-2015, 09:45 AM
You need the washer that fits over the clip and pushes against the lock nut. It wasn't eliminated in 86.

Its number 18 on the parts list
http://www.servicehonda.com/parts/lookup#/Honda/ATC250R_A_(86)_ALL-TERRAIN_VEHICLE_(ATV)%2c_JPN%2c_VIN%23_JH3TB060-GC500024_TO_JH3TB060-GC513117/REAR_WHEEL_AXLE_86/ATC250R-86-JPN-A/2Y14HA2FE1AHA28F1301A

fordnut79@hotma
05-26-2015, 01:31 PM
RedRider,I called lonestar and got one of the washers that sit against the sprocket hub.See if it helps. Anybody have a pic of this washer on the sprocket side hub area they can post?

bkm
05-26-2015, 01:49 PM
Your problem is that your using a 87 nut with a 85-86 threaded collar. The 85-86 collar is shorter because it uses that little sleeve that fits over the snap ring. When you eliminate the little collar there are less threads to engage.

bkm
05-26-2015, 02:06 PM
The 87-up bikes used a longer threaded/splined sleeve because the snap ring groove was machined into the end of the nut.

Red Rider
05-26-2015, 02:41 PM
RedRider,I called lonestar and got one of the washers that sit against the sprocket hub.See if it helps. Anybody have a pic of this washer on the sprocket side hub area they can post?Here's a pic from ebay of Lonestar's current standard hub: http://www.ebay.com/itm/Lone-Star-Racing-Lonestar-Racing-26-161-Sprocket-Hub-for-Honda-250R-400EX-/191571226463?hash=item2c9a88ef5f&vxp=mtr

In the pic of your axle, the sprocket hub doesn't appear to have the ring, nor does it look like it is turned down to accept a steel ring over it. Did you try calling or emailing Lonestar's tech support? They should know the history of their axles, and whether or not they all had the steel rings installed. Also, it sounds like BKM is onto something in post #11.

Mr. Clean
05-26-2015, 03:43 PM
Also, it sounds like BKM is onto something in post #11.

bkm is right. The axle is not the issue, it is the threaded collar/sleeve. I am running the exact same axle on my 200r.

Dirtcrasher
05-26-2015, 04:24 PM
I see it in the parts list but I know I have one large nut thats not relieved and one that is??

I put a RAD nut on my 86 350X over the weekend and it had the piece that goes over the c - clip, it's an early 86 and I thought the later models had the change like the frame changing 2 or 3 times in 86. All at the one motor mount...

fordnut79@hotma
05-27-2015, 10:19 AM
OK guts, don't mean to beat this topic to death but look at these pics 216435216436 The hub doesn't seem to be machined to accept a bushing and there looks to be some type of bushing in there already. Its magnetic and I cant scratch it with a hobby knife so I'm thinking its steel. Plus don't want to order a bushing if it wont fit. 34 bucks Canadian.

bkm
05-27-2015, 11:17 AM
Alright here it goes. You don't need the spacer against the sprocket flange, the steel part is the splined insert pressed into the sprocket flange for strength. What you need to do is us the threaded/splined collar you have, flat nosed lock nut from an 85/86 atc, and the little sleeve/collar that fits over the snap ring............ or, use the nut you have and locate a longer splined/threaded collar for use with that nut..............or buy a Lonstar antifade. Those are your options.

fordnut79@hotma
05-27-2015, 11:27 AM
Thanks guys, your experience and wealth of knowledge is really appreciated!

HairyJR
05-27-2015, 03:14 PM
If you decide to replace the axle nut and nut washer the 350x parts are the same. You only gain @ 7mm more thread engagement even though its correct. One other option is to machine a spacer/sleeve ( 40mm ID x 50mm OD x 7mm -10mm thick) placed between the splined threaded sleeve and brake hub.

"HJ" 216448

Red Rider
05-27-2015, 07:27 PM
The hub doesn't seem to be machined to accept a bushing and there looks to be some type of bushing in there already.Looking at the pics of your sprocket hub, like you said, it isn't machined to accept a bushing over it. You can see the wear marks on the aluminum hub where it has been rubbing against the seal. Your axle/sprocket hub must be an older design that didn't have a steel bushing for the wear surface. To satisfy your curiosity about whether or not it is supposed to have a bushing on the sprocket hub, slide your axle into your bearing carrier. If the seal seats around the sprocket hub nicely, then there is no room for a bushing, and therefore wasn't designed to have one. I'm convinced your lack of threads issue is what bkm has been telling you. I'm sorry I lead you down the bushing path, but the current designs have a bushing there, as steel will wear better than aluminum.