Camoplast response about howl

[twomorestrokes]

Is it ALL of them that is making the noise? Or is it just some of them? Yamaha *has* issues a recall on the jackshaft for a certain defective batch, is it possible that the noise is related to an unstraight jackshaft and NOT the track at all?

LB, it's a good thought, but I think that in most cases (like my own) the noise gets worse as the hyfax wear. I can't see a connection between the hyfax wear and the jack shaft...

I have not noticed that the noise is relevant to hyfax wear. I have heard the noise since new. Maybe that's because I run my track loose though?

 

[QCRider]

Is there anything different with these sleds than an Rx1 with the same suspension?

The RX1 never had the ProActive like the '05 Vector. It was either a ProAction, or Mono.

And the RX-1 Howls just as much as the Vector. I have this problem with both sleds and I ride mostly hard packed trails. Some loose snow on top, but mostly packed nice and hard. I have seen where others say that the noise is not noticeable as the snow is softer and deeper. So if you don't ride on hard packed snow at the right speed, you wouldn't notice this problem. But when you do it is LOUD.

 

[Sled Dog]

I still think it is the drivers working the track as that is the kind of sound one would expect to come from the meshing of the two. On my rx-1 that is where the sounds seems to be coming from. Dont get this sound from the 04 rx-1 mountain or it is so low as not to notice.

 

[Sled Dog]

Who has the howl and is good with angles? Wondering if the angle of the nubbs on the track matches the angle on the driver. Then we could get someone who does not have the noise to check the angles of his track nubbs and drivers to see if we have a match or mismatch meaning howl or no howl.

 

[06vectorgt]

I still think it is the drivers working the track as that is the kind of sound one would expect to come from the meshing of the two.

I have brought this theory up twice before but it seems to go ignored every time, and I still think it is a viable theory by the way.
You can't change out tracks & skids and still have the problem if one of those were the culprit.
I think as the hyfax wears the track drive nubbs get "hit " by the drive sprockets rather than pulled. This would also contribute to the theory of dealer set up (mine did or did not do it since new) concerning track tension.
Again just my .02

 

[QCRider]

I have not noticed that the noise is relevant to hyfax wear. I have heard the noise since new. Maybe that's because I run my track loose though?

I tend to run mine on the loose side too, I don't like the track really tight. Mine did get worse as the hyfax wore. I am replacing them now, we'll see if it starts off less noisy or not...

 

[Sled Dog]

I still think it is the drivers working the track as that is the kind of sound one would expect to come from the meshing of the two.

I have brought this theory up twice before but it seems to go ignored every time, and I still think it is a viable theory by the way.
You can't change out tracks & skids and still have the problem if one of those were the culprit.
I think as the hyfax wears the track drive nubbs get "hit " by the drive sprockets rather than pulled. This would also contribute to the theory of dealer set up (mine did or did not do it since new) concerning track tension.
Again just my .02

Major part of the track drive component this has to be explored fully nothing else has worked this may.

 

[06vectorgt]

I also think at the noted speed this is more pronounced when the track is not under a hard load, cruising speed basically around 40-50mph.
Does anybody notice the noise as they pass 40-50 mph under hard acceleration, I'll bet not.
I say if you run your track lose, try it tight and see if it makes a difference.

 

[twomorestrokes]

I say if you run your track lose, try it tight and see if it makes a difference.

Sounds like an easy test to me, and one to look into. My track was set loose from day one, which could explain the early onset of the noise.

COME ON SNOW!

 

[QCRider]

I think as the hyfax wears the track drive nubbs get "hit " by the drive sprockets rather than pulled.

I don't understand what you mean by this. How do they get "hit" and not pulled, yet the sprockets are still putting power to the track? I'm not saying you're wrong, just that I don't understand what you are saying.

 

[06vectorgt]

I think as the hyfax wears the track drive nubbs get "hit " by the drive sprockets rather than pulled.

I don't understand what you mean by this. How do they get "hit" and not pulled, yet the sprockets are still putting power to the track? I'm not saying you're wrong, just that I don't understand what you are saying.

In theory - I think as the hyfax wear the track will become a little more lose making it more sloppy in there where the nubbs sort of "chuck" in the drive sprockets vs pulled in tighter when more track tension is present.
Under accelleration you should not notice this.
Just a pin-headed theory I got! :shock:

 

[QCRider]

In theory - I think as the hyfax wear the track will become a little more lose making it more sloppy in there where the nubbs sort of "chuck" in the drive sprockets vs pulled in tighter when more track tension is present.
Under accelleration you should not notice this.
Just a pin-headed theory I got! :shock:

So, you're saying that if you tighten the track the noise should disappear?

 

[06vectorgt]

Well, some people say they have this problem and others don't. Dealer set-up was mentioned at one time, track alignment/tension is part of that procedure. All I'm saying is that this is the last piece of the puzzle to look at since skid and or track swaps made no difference. Also it appears hyfax wear related or again possible dealer set-up.
The fact that it seems hyfax wear related lets out other things like chain case or clutch comming through.
Just my thoughts

 

[aVenture]

I have removed my limiter straps yesterday to noticed that the bottom side is badly used; sideways. This tells me that the buttons of the tracks has done that. This might not be the only source of noise but is sure one of 'em. The is a guy on this forum (i guess on the Howl noise thread that vanished somewhere else (shame)) that care up twice with this and i must admit he is right to fear for this 'too close for comfort' proximity. I have to change my straps anyway because the top part is all messed up and will be cutting the bottom side so it gets well in between the track's buttons. BTW.. the top part get broken on mine because the way the strap bends when the front suspention colapse. Instead of forming a nice curve around, the straps bend sharply at the top bolt point and it goes right to the track at the top and get smashed by it. The problem i believe is caused by the strap that swivel easily (once there is snow) from the top shaft bracket so it makes the bending goes up.

I will keep my experimantation going for this one and come back to you guys on any findings.

 

[aVenture]

I forgot to mention (as you might have realized already) that the scorching on the belt by the track's buttons are proportional to the hyfax wear due to their shape.. and this is inline with many observations already reported.