Kanedog discovers a Clutching CATastrophy, again. Pics!

[skegpro]

That pic is of the inside of the cover? Where the cover sits on the tower?

Exactly, sorry should have been more specificific.

 

[Rjjtcross8]

some of these clutch covers look like they met the drill press in a high school shop class.

 

[kanedog]

Pulled apart my old clutch today.

Bolts were definitely flexing in the towers and making contact....

//uploads.tapatalk-cdn.com/20191214/5cc7e1dc20a039915e5321186e38515c.jpg//uploads.tapatalk-cdn.com/20191214/761e05c3b1af1977d66d91335cf70dec.jpg//uploads.tapatalk-cdn.com/20191214/749b897a6a43d640d4f865e3e2368c76.jpg//uploads.tapatalk-cdn.com/20191214/da6eddf81b3de11197959859b1e7b230.jpg

Good find. The bolts sure do show what’s going on.

 

[kanedog]

Must be clearing out old stock yet. //uploads.tapatalk-cdn.com/20191215/c9927fe53311b5aeb038e9eeb60c86b8.jpg

I notice no serial number in the cover. That’s odd cuz the last year or so there have been serial nums in the cover and stickers that say the part num and date.

If the customers are confused, it’s actually the company that is confused.

 

[skegpro]

I notice no serial number in the cover. That’s odd cuz the last year or so there have been serial nums in the cover and stickers that say the part num and date.

If the customers are confused, it’s actually the company that is confused.

0746-885, isn't that the part number?

 

[skegpro]

Good find. The bolts sure do show what’s going on.

You were in McBride at the time, so I am not sure if you saw this.

 

[E-Zmoke]

0746-885, isn't that the part number?

Yes that is the ACTUAL CAT part number but WHAT IN THE ACTUL FAKKK is going on here!? You are the first clutch to post in this thread with the ACTUAL CAT part number stamped on your clutch! All others posted including mine from my 2020 has a made up part number from the 90’s that doesn’t actually exist all clutch part numbers posted have been a 0725 part number series

KaneDog is asking for your SN# it should have a SN# stamped on the clutch and a green quality control sticker. Also I’m curious to know how many balancing holes your clutch has drilled into it?

 

[E-Zmoke]

Cross reference guide that I posted before:

2020 part number is CAT part #0746-895

2018 and 2019 is CAT part #0746-885

The part numbers we have on our clutch covers are a very old arctic cat part number 0725 series was from the 90’s the part numbers we have on our clutch covers make absolutely no sense at all? WHY do we not have the Cat part numbers stamped on our clutches? When you enter in the 0725 part number that most clutches have stamped on then nothing comes up?


CLUTCH,DR.UNCAL-TEAM-HDI33MM (423460) is the team cross reference part number for the newest 2020 clutch CAT part number 0746-895


CLUTCH,DRIVE-UNCAL-HDI33MM (423215)
Is the team cross reference part number for the 18-19 CAT part number of 0746-885 (which replaces/supersedes part number 0746-876)


CLUTCH,DRIVE-UNCAL-TEAM-HDI33MM (423031) is the team cross reference part number for 0746-876 (this part number is more then likely the original part number that got recalled)

 

[skegpro]

You doing drugs with kaner?
Here is a 18 and a 20, both with part #'s etched.

 

[skegpro]

Ah nevermind I see.
You guys are sharp.

 

[skegpro]

Alot of holes
And no serial #......... lol

 

[snochuk]

Cat care hasn't responded yet....

So dealer ordered in a new clutch for me and said someone will pay for it, still haven't figured out if that means me lol.

Mine was the one with the cracked tabs.//uploads.tapatalk-cdn.com/20191209/7cdc94d3e7d2e1e60b7189cd9ade45e7.jpg

Mine is cracked the same.
Being covered by warranty.
Just not sure if I am getting grade 8 bolts or grade 5 again.
Stopping by there tonight.

 

[Clode]

I put a 911 cover on mine, mine wasn't cracked yet on my '16

 

[NoBrakes!]

Did you notice any vibration increase?

 

[Clode]

Did you notice any vibration increase?

I am going out on Monday, I will report back.

 

[E-Zmoke]

Seen these pics of a secondary on the land of faces the other night? Quite strange

 

[kanedog]

Seen these pics of a secondary on the land of faces the other night? Quite strange

//uploads.tapatalk-cdn.com/20191219/8d73fefef453e45a6935f232804ba98b.jpg//uploads.tapatalk-cdn.com/20191219/08366f0530249c076f95f4a8c5bec83c.jpg//uploads.tapatalk-cdn.com/20191219/3e5c7ece6d1428f4161c7a645f5ad847.jpg

The KBI clutch investigation division has narrowed the cause to three possible scenarios.

1. Turbo or supercharger power applied to stock secondary spring and helix. Or incorrect spring and helix. Primary yanked open the secondary and made the belt slip. Major belt slip evidence present.

2. The secondary clutch bolt has backed out due to engine harmonics. The bolt vibrated itself loose but not enough for the bolt to fall out. Just enough to let the sheaves spread apart and not quite enough for the sheaves to fully squeeze the belt.

The clutch is now partially open and loose and the belt dropped down low into the sheaves. Under WFO, the primary yanked the belt way down in the secondary. The belt slipped like a mofo in the secondary and wore a few holes in the sheaves. Dude prolly rode it a while hoping it might fix itself. We all do that sometimes. No biggie.

3. The dude incorrectly assembled the secondary.


The Team Boss secondary clutch design is not good. When and if the bolt comes loose, the outside sheave can come right tf off and now there’s an 8000 rpm 11” disc of death bouncing around in the clutch area. This can be veddy skeddy.

Just smoked a fatty and now the bolt and washer bother me. The bolt and washer are two different types of metal treatment. It looks funny. Don’t know if it affects affects anything tho. Oh, and the washer hole is too big. Notice how the washer is off center. The component rotates at 8000rpm. It’s important to have tight tolerances on rotating components or vibration may result.

Crappy clutches stress me out. I gotta go to bed, this is much too stressful.

KBI investigation is now concluded. No guarantee of accuracy or correctology.

 

[skegpro]

The KBI clutch investigation division has determined the following cause.

The secondary clutch bolt has backed out due to engine harmonics. The bolt vibrated itself loose but not enough for the bolt to fall out. Just enough to let the sheaves spread apart and not quite enough for the sheaves to fully squeeze the belt.

The clutch is now partially open and loose and the belt dropped down close to the bottom of sheaves. The belt slipped like a mofo in the secondary and wore a few holes in the sheaves. Dude prolly rode it a while hoping it might fix itself. We all do that sometimes. No biggie.

Notice the washer under the bolt may not be stock. It’s a looks a little too big as you can see it’s not quite centered under the bolt head. If the bolt was taken out, it might show if the stock washer damaged the sheave.

The Team Boss secondary clutch design is not good. When and if the bolt comes loose, the outside sheave can come right tf off and now there’s a 8000 rpm disc of death bouncing around in the clutch area. This can be veddy skeddy.

KBI investigation is now concluded. No guarantee of accuracy or correctology.//uploads.tapatalk-cdn.com/20191219/fb4943d126f0167caef2a5151e67ec83.jpg

Shimmed wrong from factory?

 

[mountianguy]

Cross reference guide that I posted before:

2020 part number is CAT part #0746-895

2018 and 2019 is CAT part #0746-885

The part numbers we have on our clutch covers are a very old arctic cat part number 0725 series was from the 90’s the part numbers we have on our clutch covers make absolutely no sense at all? WHY do we not have the Cat part numbers stamped on our clutches? When you enter in the 0725 part number that most clutches have stamped on then nothing comes up?


CLUTCH,DR.UNCAL-TEAM-HDI33MM (423460) is the team cross reference part number for the newest 2020 clutch CAT part number 0746-895


CLUTCH,DRIVE-UNCAL-HDI33MM (423215)
Is the team cross reference part number for the 18-19 CAT part number of 0746-885 (which replaces/supersedes part number 0746-876)


CLUTCH,DRIVE-UNCAL-TEAM-HDI33MM (423031) is the team cross reference part number for 0746-876 (this part number is more then likely the original part number that got recalled)

I am thinking the 0725-978 is the latest and greatest and was changed after the parts books were made. If that is not the case it does not make any sense or we don't have all the facts yet.

 

[Dawizman]

Pop out a bolt let's see her hole.