Hardcore Sledder banner
1 - 16 of 16 Posts

·
Registered
2002 ZR900, 2019 ZR8000 Sno Pro 129
Joined
·
372 Posts
Discussion Starter · #1 ·
Was going over the primary clutch on my 2019 ZR8000 SnoPro with 850 miles, and came across what I think is cracks in the towers. Please have a look of the attached pics and let me know what you think?

I know the Team primary clutches were prone to premature cracking on the CTech2 motors. I bought this 2019 new, last year as a dealer left over and it still has the factory warranty till Feb 2022. So if the clutch does need to be replaced, I would like my dealer to do it soon.

Thanks!
 

Attachments

·
Registered
2002 ZR900, 2019 ZR8000 Sno Pro 129
Joined
·
372 Posts
Discussion Starter · #3 ·
Hey Gammer

Look like casting marks to me. Do the "cracks" continue in the machined hole that houses the bolt?
Hey!
Good question. I will have to take a closer look tomorrow. I was worried if I pulled the bolt if it would void the warranty, because the paint on the bolt/casting wouldn't line up again.
 

·
Registered
Joined
·
250 Posts
Usually you will get som "dirt" around cracks where two faces moves/rubs against each other.

Those are most likely zones where the liquid material was a tad too cold when two liquid fronts met in the mold, or there was a mark in the mold that gave an imprint.
 

·
Registered
‘20 XRS 900 Turbo ‘22 ThunderCat EPS
Joined
·
134 Posts
They look like casting marks to me. I’d just keep an eye on them throughout the season and make sure they don’t get longer or more pronounced. 👍🏼
 

·
Registered
Edge Fuji 800 Triple Star
Joined
·
768 Posts
120-240-320+ sanding drum/cone/tree in a dremel would smooth that right out.

Working on a set of eagle hemi cylinder heads right now for an improved stock pull truck, cast aluminum isn't perfect.

 

·
Registered
2020 Indy XCR 850
Joined
·
570 Posts
Machine shops magnaflux blocks and heads to check for cracks. If you are really worried, check with a local shop and see if they can do this on your clutch. May give you cheap peace of mind.
 

·
Premium Member
Joined
·
20,903 Posts
Overthinking. Looks 99.9% like normal clutch casting marks too me, but, since you have warranty….ask your dealer for a new one and see what he says. I agree on removing the bolt to look in the machined hole though…as machined surfaces should be void of marks and if yours isn’t, then it’s a no brainer.
 

·
Registered
Joined
·
322 Posts
Hey!
Good question. I will have to take a closer look tomorrow. I was worried if I pulled the bolt if it would void the warranty, because the paint on the bolt/casting wouldn't line up again.
At a minimum,I would show him your pics, he might want you to bring it in to inspect it,if there is any doubt,at least you can have on order, a updated ADAPT replacement primary clutch.
 

·
Registered
Joined
·
2,317 Posts
Definitely normal. Our 19 RR has same marks from new and no issues with 9000 Kim’s now. Keep the the pics if your concerned and compare again in a month into the season. I’m sure there will be no change. If there is you have proof it’s growing in length.
 
1 - 16 of 16 Posts
Top