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Cat DNA Strikes again! -CHAINCASE TENSIONER ROLLER WHEEL FAIL

This is what Im gonna do, not gonna let this happen again and ruin a trip.

20181202_154828-jpg.143461
 

The whole adjuster thing looks like someone designed it out of his garage. Brutal.
 
Wow @ROCKERDAN that's brutal and SO much work!! I took mine out and used red locktite......hopefully it will be good for the season then will tackle it again in the spring once the season is done and I do my end of year maintenance.
 
How much free play fwd and back should I have on my secondary clutch when chain is adjusted properly?
 
1nc 2000 said:
How much free play fwd and back should I have on my secondary clutch when chain is adjusted properly?
Click to expand...
When mine went down, I could turn the secondary a fair bit....but now I know the one screw was holding the chain with some tension still....But mine did skip a gear when I tried to take off, hoped that I could nurse it back to the closest road but it skipped once and then we had to tow her.

Im uploading a video now....will put it here shortly.

Dan
 
1nc 2000 said:
How much free play fwd and back should I have on my secondary clutch when chain is adjusted properly?
Click to expand...

ROCKERDAN said:
When mine went down, I could turn the secondary a fair bit....but now I know the one screw was holding the chain with some tension still....But mine did skip a gear when I tried to take off, hoped that I could nurse it back to the closest road but it skipped once and then we had to tow her.

Im uploading a video now....will put it here shortly.

Dan
Click to expand...
Here is video of when it happened.....Sorry for the language, was not too happy only 20 minutes into day one of trip......grrr

Dan

 
Doowithblue said:
For the record the new adjuster i got had green loctite on both screws.
Click to expand...


I checked my chain adjuster this fall when changing out my driven shaft and brake side bearing and it looked good, notice I said looked good. Upon inspection I could rotate the screws and axel in the adjuster rather easily. So I took it apart and also found green loctite in the middle of the two screws. I cleaned it up real good and tightened everything down real good using Red Loctite and my Makita cordless impact as hard as it could go, and I know thats darn tight!

I wished now I had welded and even really thought about welding it, but figured I had 5 years of warranty. Next time I have it apart I will be tack welding the screws. I don't think the factory loctited them good enough or gets the screws tight enough. That or the loctite just deteriorates enough where it doesn't hold good enough either.

Its a poor design and should have a simple shoe on the tensioner like Doo does instead of a rattling roller on the tensioner. The roller has too much vibration as it rolls across the links of the chain and is not smooth enough causing it too loosen up. Maybe we should check into what it would take to install Ski-Doos tensioner shoe on Cats arm.
 
So, next fall when I service the chain case on my 2018, I can remove the cover, pull this tensioner, tighten the bolts, and tack the heads in place, without causing any other issues? I'm assuming eventually the roller will need replacement as well? It looks like a $53 part.
 
ROCKERDAN said:
Here is video of when it happened.....Sorry for the language, was not too happy only 20 minutes into day one of trip......grrr

Dan

Click to expand...

That totally and completely sucks.

Very stupid design. A teflon shoe would serve better purpose I think.

In hindsight would you have considered repairing crack?

https://www.muggyweld.com/video/repair-cracks-pot-metal-zinc-die-cast-low-heat/

Not sure if it would last or if it could be done without removing inner case. No idea if this really works.

Bye the way, I think you were very reserved with your expression of dis-pleasure. Me, it would be not so much.
 
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