One would think yours would've snapped (shaft) or grenaded a chain by now, but maybe its still strong enough to only pull slightly toward the primary thus causing the seize to occur. Lots of great aftermarket shafts out there that have the beef to survive the tree pounding.
****in junk cat secondaries
- Thread starter Insaneboltrounder/sjohns
- Start date
One would think yours would've snapped (shaft) or grenaded a chain by now, but maybe its still strong enough to only pull slightly toward the primary thus causing the seize to occur. Lots of great aftermarket shafts out there that have the beef to survive the tree pounding.
If you do gears and everything is 500, just the secondary is we 250, I prefer the higher gears
I
Cat shop thinks maybe reeds. I can't see it. 4 runs up a hill and sleds bogs bad might pull 6500 often less. Cool the secondary will snow until it's cold and the sled runs perfect , repeat like that for 3 days
R
Thats pretty poor testing. It could be almost anything and Im betting its not the secondary.
I
What else could it be. Warm secondary = no back shift the hotter it got the lower the rpm was. Get the secondary cooled off and it ran perfect , same thing every day for three days. Did it to two secondaries
R
And letting everything else cool off as well. Could be fuel mapping, bad primary, limp mode, bad PCV.
Cats have a limp mode based on percentage of time wot and coolant temp. On days above 40, no matter how much snow there is, they can go into limp. They sound like they lose a cylinder and run very poorly
Cats have a limp mode based on percentage of time wot and coolant temp. On days above 40, no matter how much snow there is, they can go into limp. They sound like they lose a cylinder and run very poorly
I think the secondarys are balance terribly and there must be a huge production tolerance. Most secondary failures I have seen have been from the helix bolts sheering off.
Sh!t, my 15 m8000 blew a secondary at the 1000 mile mark this year. Took out a belt as well. Cat warrantied both. Wonder if problems persist if cat will eventually offer the Team clutch as an update bulletin
Sh!t, my 15 m8000 blew a secondary at the 1000 mile mark this year. Took out a belt as well. Cat warrantied both. Wonder if problems persist if cat will eventually offer the Team clutch as an update bulletin
Are you running the 83 belt, it takes a little longer to show. The dealer here replaced 50% of the secondarys.
I think its a combo of both clutches, I had a roller get just a little to loose and caused rpm drop, not as bad as the stock secondary but it did drop me a few hundred and I could not get it back until new primary.
I think its a combo of both clutches, I had a roller get just a little to loose and caused rpm drop, not as bad as the stock secondary but it did drop me a few hundred and I could not get it back until new primary.
I
I use the 84. I've inly blown one belt since 2012 but I ran the team tied until it started seizing up too. Must be something with this sled. The tied was on my 12 and never had a problem until I put it on this 13.
put a shift kit in it $20
ganggreen sells them on here, or at least he used to, if u look in the M series archives, there are ac/delco part numbers that can be used
ganggreen sells them on here, or at least he used to, if u look in the M series archives, there are ac/delco part numbers that can be used
B
Have a few cat secondary if anyone needs a spare
Whats causing them to bind? the smaller center hub? I see WY has talked about having them machined but never talks about what the shop does.
I
Ive been doing some thinking about mine. It never acted up with the stock helix....always with the aftermarket ones.
M
Wow, this is all news to me!
I am a Proclimb newb but certainly not new to snowmobiling or clutching. I have a brand new 2015 M8000 sitting in my shop waiting to get on the snow for the first time this season. Now, I am learning the secondaries (at least a portion of them) are not up to the task? That creates a lot of questions for me.
Is there some preemptive action I should take before my sled ever hits the snow?
Is this Thunder Products Hercules Helix (linked above) worth considering?
Is there an aftermarket secondary spring with a high spring rate that would help with the back-shift issues?
Does running a 083 belt work better than running the stock 084 belt? Maybe a Dayco XTX. Or does the belt type not seem to make a difference?
How about the primary, is there anything to do before hitting the snow the first time?
I am a Proclimb newb but certainly not new to snowmobiling or clutching. I have a brand new 2015 M8000 sitting in my shop waiting to get on the snow for the first time this season. Now, I am learning the secondaries (at least a portion of them) are not up to the task? That creates a lot of questions for me.
Is there some preemptive action I should take before my sled ever hits the snow?
Is this Thunder Products Hercules Helix (linked above) worth considering?
Is there an aftermarket secondary spring with a high spring rate that would help with the back-shift issues?
Does running a 083 belt work better than running the stock 084 belt? Maybe a Dayco XTX. Or does the belt type not seem to make a difference?
How about the primary, is there anything to do before hitting the snow the first time?
Don't even worry about it. The 14's and 15's have what is referred to as the big fin secondary. Way less problems with those.
Yeah I dont touch a thing on the secondary in the 14 & 15s. They work well enough with no real backshift issues. We run straight 36deg helix up here. Secondary will last till you start seeing it drag down rpms. I even had a junk secondary that was brand new that came on my 15. Had it warrantied after the first ride. Only really noticed it cause I had another 15 to compare to and swap clutches back and forth with it.
Primary I just run cat weights with speedwerx 120/310 spring and a thunder products metal glide washer in cover under the spring. Wyoboy ran a 911 cover with good success on his last year. I ran mine stock. First thing to go in the primary will be a stuck roller which takes out a weight and binds up the clutch.
Primary I just run cat weights with speedwerx 120/310 spring and a thunder products metal glide washer in cover under the spring. Wyoboy ran a 911 cover with good success on his last year. I ran mine stock. First thing to go in the primary will be a stuck roller which takes out a weight and binds up the clutch.
Ride it first
Of anything shows up warranty the secondary if you can, if you can't get the secondary machined like I did. Never had another issue
Of anything shows up warranty the secondary if you can, if you can't get the secondary machined like I did. Never had another issue
Thanks Wyoboy1000!
It was good to hear that the 2014 and 2015 models don't have as many issues.
It was good to hear that the 2014 and 2015 models don't have as many issues.
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