Drive shaft spring

[Hook#3287]

While tearing into my NTM Standard, Penny, I found the drive shaft spring looked like this.



The one on the right.  The other is from an extra I have.

First time I've seen this. 

What caused that?  Anyone know?

I'm guessing poor reassembly, but why would a spring stay compressed like that?

She was missing one of the O-rings on the hub also, the big thin one.

[Daniel Meyer]

That's...bizarre.

I'm'a gonna go out on a limb and say somebody "modified" it...maybe thinking it would make assembly easier (it won't)...I cannot think of the circumstances while installed that would cause that...

[Hook#3287]

That's...bizarre.

I'm'a gonna go out on a limb and say somebody "modified" it...maybe thinking it would make assembly easier (it won't)...I cannot think of the circumstances while installed that would cause that...

That's what I thought, but the spring has the correct amount of turns in it, so it's been compressed.  I'm at a loss on it. ??? ???

At least I didn't find any wood screws holding stuff together on this one.

[hubcapsc]

How would you make it stay that way? Mechanically compress
it and then heat it, and then maybe it would say that way?

Idaknow.

-Mike

[Hooter]

Does the compressed side look like it's been warm. The color looks "bluish "?

[The emperor has no clothes]

That is strange indeed. I think Daniel has the best explanation. But it makes me think that your calling is to rescue poor mistreated Valkyries. Much like people who take in pets who have been beaten and neglected. Good on you for doing this Bill. 

[Hook#3287]

How would you make it stay that way? Mechanically compress
it and then heat it, and then maybe it would say that way?

Idaknow.

-Mike

Does the compressed side look like it's been warm. The color looks "bluish "?

It does have a slight blue tint as well as a bend.  I think it got hung up on reinstall, causing overheating, causing the deform and bend.

Just can't figure out what it got hung up on. ???

Sure is a strange deal.

[Hook#3287]

That is strange indeed. I think Daniel has the best explanation. But it makes me think that your calling is to rescue poor mistreated Valkyries. Much like people who take in pets who have been beaten and neglected. Good on you for doing this Bill. 

Yeah, I don't know if it's calling or a disease.

But it keeps me busy, when riding is not.

I didn't want to, because I don't want to deal with the stupid boot, but I'm going to pull the u-joint.  Maybe something there will lend a light to what caused this.

[0leman]

Yeah, I don't know if it's calling or a disease.

But it keeps me busy, when riding is not.

I didn't want to, because I don't want to deal with the stupid boot, but I'm going to pull the u-joint.  Maybe something there will lend a light to what caused this.

Not sure how the spring getting hung up at the U-Joint could generate enough heat to disfigure it. There is nothing in the swing arm that would cause the spring get caught on nor to get hot.  If it did, one would hear the noise.    That had to happen when it was taken apart, OR maybe a defective spring to begin with. 

Assuming this is the first time you have had driveshaft out. Right??

[Hook#3287]

Yeah, I don't know if it's calling or a disease.

But it keeps me busy, when riding is not.

I didn't want to, because I don't want to deal with the stupid boot, but I'm going to pull the u-joint.  Maybe something there will lend a light to what caused this.

Not sure how the spring getting hung up at the U-Joint could generate enough heat to disfigure it. There is nothing in the swing arm that would cause the spring get caught on nor to get hot.  If it did, one would hear the noise.    That had to happen when it was taken apart, OR maybe a defective spring to begin with. 

Assuming this is the first time you have had driveshaft out. Right??

First time for me, but she has 94k on her and I don't have the history. 

It's possible it came from the factory that way, but that would surprise me with hondas known quality control.

Besides, even at 20k per tire, she's on her 5th, so min 4 changes.

Took the u-joint out and all looks ok, I suspect the boot is newer.

I'm wondering if somehow the shaft didn't set right in the cup and it pushed the shaft up into the u-joint, compressing the spring.

Pure conjecture at this point.

[semo97]

I would say that is not a compression spring. someone took a straight pull spring and heated it and stretched it out to make a compression spring. most of the temper and spring is gone. that is where your blue came from and the bend. not a good short cut for a part. I doubt it hung up anywhere and got that hot to turn blue there would be other parts blue as well and something would be eaten up

[Tfrank59]

 That is a very curious "mortification". I guess you'll open her up and get to the bottom of it. I just hate when I see stuff like that because it makes you wonder where else on the bike somebody did something stupid like that--then you almost have to take everything apart to see what's been done.

[Hook#3287]

That is a very curious "mortification". I guess you'll open her up and get to the bottom of it. I just hate when I see stuff like that because it makes you wonder where else on the bike somebody did something stupid like that--then you almost have to take everything apart to see what's been done.

You mean like this?



I haven't found the smoking gun, don't think I will either.

Pretty sure that's a OEM spring, the ends are the same, the diameter is the same, same number of turns.

[Hook#3287]

I would say that is not a compression spring. someone took a straight pull spring and heated it and stretched it out to make a compression spring. most of the temper and spring is gone. that is where your blue came from and the bend. not a good short cut for a part. I doubt it hung up anywhere and got that hot to turn blue there would be other parts blue as well and something would be eaten up

That's definitely possible.  But the blue is in the unstretched part and why didn't they finish it?

[Skinhead]

It was probably a manufacturing defect, never properly heat treated to begin with.

[Ricky-D]

You cannot shove the drive shaft far enough into the universal joint to match the collapse of that spring.

***

[Hook#3287]

You cannot shove the drive shaft far enough into the universal joint to match the collapse of that spring.

***

Actually, you can.

[jim@98valkyrie.com]

But it makes me think that your calling is to rescue poor mistreated Valkyries. Much like people who take in pets who have been beaten and neglected. Good on you for doing this Bill. 

Yeah, I don't know if it's calling or a disease.

Well, they rescue dogs, cats and other livestock. So we need to come up with a team name for those of us that rescue Valks............

[Harryc]

Well, they rescue dogs, cats and other livestock. So we need to come up with a team name for those of us that rescue Valks............

Valkuers works.

[jim@98valkyrie.com]

Well, they rescue dogs, cats and other livestock. So we need to come up with a team name for those of us that rescue Valks............

Valkuers works.