upper gear bushing

[cannondale27]

So we are supposed to buy new gears and chain till we find a set that works? NO! You got lucky Clutchmaster.

 

[cannondale27]

Nobody said it’s normal. It sucks. But livable.

 

[ClutchMaster]

So we are supposed to buy new gears and chain till we find a set that works? NO! You got lucky Clutchmaster.

Lol
Yea happens a lot, especially when the GF is drunk.

 

[NYTurbo]

we are a group of 8-10 sidewinders all high mileage trail sleds running 270 hp plus and had issues with upper gear bushings. some replaced gear only to find it didnt last long. Others pressed in a new bushing and we have yet to change that bushing. Stock Bushing in most cases is crap, and rocks from day one in many cases . IMHO opinion drop a quality 1 in bushing in, dont trim the portion that hangs out the back as it provides extra support , put a quality gear oil in there and fill to top of sight glass. 3000 plus miles on the bushing in my sled was going to change this year when i service this summer but no need to , zero rocking and still looks new. Bought new 19 left over late last year, broke it in early April and got 200 miles on it, re gearing it last week for this season and the stock gear with stock bushing with 200 miles is showing wear and is rocking . I dont pay alot of attention to chain tightness , finger tight back out 1 turn and walk away.

 

[Jafo1970]

Your chaincase is different, you have the pads not a solid roller design like the yamaha. If your chain is too tight the pads are there, they wear quickly and the chain loosens up fast. This prevents the bushing wear. It’s different with the yamaha solid roller, there’s no give.
That’s why the cats have had zero bushing issues.

I have a sidewinder, not a cat. I had a couple turbo cats previously.

 

[Jafo1970]

Actually they had an auto tensioner with a spring and ratchet, roller design. Guys who upgraded to a hyvo chain had adjusters poking through the side of the case in no time. Wonder why that is? Proof positive that the back side of the chain actually gets tighter under power.

Listen to Yamaha, leave it loose.

Yes they had an auto adjuster. I ran that for 10,000 miles without it failing.

 

[ClutchMaster]

we are a group of 8-10 sidewinders all high mileage trail sleds running 270 hp plus and had issues with upper gear bushings. some replaced gear only to find it didnt last long. Others pressed in a new bushing and we have yet to change that bushing. Stock Bushing in most cases is crap, and rocks from day one in many cases . IMHO opinion drop a quality 1 in bushing in, dont trim the portion that hangs out the back as it provides extra support , put a quality gear oil in there and fill to top of sight glass. 3000 plus miles on the bushing in my sled was going to change this year when i service this summer but no need to , zero rocking and still looks new. Bought new 19 left over late last year, broke it in early April and got 200 miles on it, re gearing it last week for this season and the stock gear with stock bushing with 200 miles is showing wear and is rocking . I dont pay alot of attention to chain tightness , finger tight back out 1 turn and walk away.

More proof^^^^^ some are getting 10k miles on the stock bushing explain that. Leave the extra material sticking out of the bushing? How’s that even possible?

I just opened my 17 winder up after 2000ish miles. I installed a 22 tooth scott taylor gear and syn tranny fluid when new. The stock chain was very tight to get on with the 22-41 setup but figured it's new it will loosen. I never checked or adjusted my chain or chained fluid, was too lazy to pull muffler. Chain stretched a good amount at 290hp and actually my chain adjuster wasn't even doing anything besides the spring tension, probably could have screwed it in 3/4" before it touched. Top gear bushing is perfect. So people shouldn't worry about the chain being too loose. AC changed the design at sometime since 2012 with the pads on the case to prevent the chain eating the sides of the case. My 2012 was tearing into the case if the chain was too loose.

A brand new chain stretches/almost immediately, they loosen fast. That’s what saved you. Tighten it back up the beginning of this year and report back end of season.

Yes they had an auto adjuster. I ran that for 10,000 miles without it failing.

You had a silent chain on that machine that’s why. My friend did a hyvo chain conversion on his cat, in one season the adjuster had destroyed itself and ruined his case. That’s why they make aftermarket manual tensioners for them.

Everybody’s has an opinion. Hopefully most TY’ers can sift through and figure out what’s really going on.

Good luck with your chaincase woes, I’m tapping out.

 

[NYTurbo]

LOL. Yeah some are getting good mileage out of the stock but not many. One would have to measure/inspect those bushings day one to see the difference.

As per leaving out the extra 1/16 ( havent measured it) stick out the back ,there is no issue as the stock gear and bushing has plenty of sideways movement on the shaft between the two retaining clips.

People can do what they want i just know what has worked for us as a group . We dont even worry about bushing issues any more its not an issue for us.

Take care.

 

[Jafo1970]

More proof^^^^^ some are getting 10k miles on the stock bushing explain that. Leave the extra material sticking out of the bushing? How’s that even possible?



A brand new chain stretches/almost immediately, they loosen fast. That’s what saved you. Tighten it back up the beginning of this year and report back end of season.



You had a silent chain on that machine that’s why. My friend did a hyvo chain conversion on his cat, in one season the adjuster had destroyed itself and ruined his case. That’s why they make aftermarket manual tensioners for them.

Everybody’s has an opinion. Hopefully most TY’ers can sift through and figure out what’s really going on.

Good luck with your chaincase woes, I’m tapping out.

I'm not sure why you think I have any chaincase woes or problems. I was simply stating my experience with my sidewinder which agrees with your statement on a loose chain is better. Mine was very loose and everything was perfect inside.

And I didn't have a silent chain on my AC turbo's. I ran a scott taylor hyvo chain and gears with the AC auto adjuster which had over 6000 miles on that setup when I sold it and the kid that bought it, ran another 2000 miles with no issues. The auto adjust was pinned originally which started off a problem. I did install an aftermarket manual adjuster on another machine. D@D stayed with the auto adjuster in there sleds. I'm not saying the auto adjuster is better, I like the yamaha current setup better.

 

[cannondale27]

Nobody has considered alignment and or parallel of the gears and shafts either. How do we know that isnt a issue? Heck even the motor alignment could be torquing that gear and shaft. Is odd how it wears at a taper.

 

[SPM]

Nobody has considered alignment and or parallel of the gears and shafts either. How do we know that isnt a issue? Heck even the motor alignment could be torquing that gear and shaft. Is odd how it wears at a taper.

I have considered it and will be checking it.

 

[SumpBuster]

I'm sensitive cuz it's 3 am and i can't sleep cuz there is huge 8 point running around my tree stand at night only

Gonna sneak in early & wait him out. Hopefully i don't obsess about this stupid gear issue we shouldn't have to worry about & miss my one opportunity.

Can't use land mines for deer in your state??

 

[sabrecat]

Nobody has considered alignment and or parallel of the gears and shafts either. How do we know that isnt a issue? Heck even the motor alignment could be torquing that gear and shaft. Is odd how it wears at a taper.

I did and the gears were flush with each other. Makes me wonder about the top gear being wider than bottom so its really not lined up.

 

[Turboflash]

I did and the gears were flush with each other. Makes me wonder about the top gear being wider than bottom so its really not lined up.

If the gears are both for 13 wide chain, then they SHOULD be lined up but I haven't checked with a straightedge (I'll put that on my list to check).
If the gear set is for 15 wide chain, then the top gear is 15 wide (the bottom is always 13 wide - I'm not aware of 15 wide bottom gears but maybe there are some)? That means the chain is wider than the bottom gear by 2 links and the chain floats around on it. Hopefully, even in this case the two gears have the same centerline. The chain fits the top gear exactly and is centered on the bottom gear. Again, IDK but I'll check it out soon.

 

[PowderFalcon]

Did we all Agree to bury the sight glass with chain case oil? 16oz ?