| Author | Message | ||
     Zedhead47 |
So I've finally figured out my squeaking noise. For the last couple hundred miles I've been hearing a sort of squealing noise and couldn't figure it out. I put on a new shock this winter, and new header and decide it was my own incompetence in not tightening or adjusting something. While once again inspecting the shock mounts etc I noticed loose needle bearings in the center of my front pulley. It's a 97 M2 cyclone with 24,000mi. I guess I'm just looking for some of that expert feedback you guys are so good at giving. Belt too tight? normal for these miles? What do you guys think? Soon as I log off here I'll be checking out the American Sport Bike site, I think Al has a pulley listed, hopefully it's a simple swap!? I guess I'll need a socket large enough to fit the nut. Thanks | ||
| Mcelhaney14 |
Belt is too tight and output shaft bearing is walking out. I don't know a lot about it but I believe for a complete fix you have to pull the trans. I'm sure someone with more experience on this will chime in soon. | ||
| Littlebuggles |
Shouldn't have to replace your pulley, just the bearings if they've been compromised. Belt too tight as stated above. | ||
| Two_seasons |
To adjust the belt for correct tension, you'll need to pre-load the rear shock, sit on the bike with all gear you ride with, and adjust the belt until you can pull the upper and lower part of belt in toward the swingarm and barely touch it on both sides with the belt. It's called "scary loose"! | ||
| Zedhead47 |
Hey thanks for the input guys. After reading your comments and looking at the pulley again it does look like the bearings are walking out. Now I'm wondering if just removing the pulley and pressing a new set of bearings in would be the fix. Is it a possibility that the inside surface of the pulley has been worn so that new bearings will just do the same thing? | ||
| Littlebuggles |
The pulley itself is splined, and it just pushes down over a splined shaft. The bearings are the final drive bearings (if I recall correctly), or the XB parts book calls it the fifth gear main shaft bearing, I don't have my cyclone book readily at hand. Not sure how the tuber bearing go in, but from the inside sounds right as Mcelhaney14 suggested if I'm wrong someone will correct me (us). I can check my manual for you later if no one chimes in between now and when I get up for work. | ||
| Hootowl |
I would replace the bearing. The tranny comes out easily enough in the tubers, unlike the XBs. Also, if you can see the needles, you're missing an oil seal. The bearing walking out may have popped it off. See this thread. http://www.badweatherbikers.com/buell/messages/476 23/712390.html?1368574434 | ||
| Zedhead47 |
Ok, so every one of you guys has a piece of the puzzle. I just spoke with Dan @ NRHS and what he said is that the tranny does need to come out but unlike an XB it is easy to do (about 1 hour). They are the final drive bearings, i.e. fifth gear main shaft bearing, and yes I'm missing the oil seal. The missing oil seal is probably a result of the bearings walking. And this is probably a result of a too tight belt. I've got to say thanks to you guys, this forum is a great thing, your knowledge is invaluable! So in about a week I'm going to drop it off to Dan and he'll fix it. | ||
| Reepicheep |
After pulling the tranny, you still have to press out that assembly. http://www.badweatherbikers.com/cgibin/discus/show .cgi?tpc=3842&post=198002#POST198002 It felt like a big deal to me at the time, but looking back I'm wondering what the fuss was. | ||
| Buellistic |
DRIVE BELT ADJUSTMENT Class 101, just PM me for a copy ... | ||
| Bluzm2 |
What Reep said. Removing and reinstalling the 5th gear and bearings is a bit of a pain. You destroy the inner bearings to remove the 5th gear assembly. Get the service manual... But... if the inner bearing isn't shot you MAY be able to get away with inserting a new bearing with a suitable driver (on the external cage only) from the outside. I did it a while back it it still is holding. Another friend did the same thing on his S2. Once you get the bearing and seal back in place I grease the heck out of it while the tranny is out. For some reason the outer needle bearing doesn't get much tranny oil on it. I think it's a combination of that and a too tight belt that causes them to walk out. As long as the bearing hasn't walked all the way out, the end of the shaft has been supported and the inner bearings MAY still be OK. Obviously your mileage may vary... It's worth a shot but be prepared to replace all the inner and outer bearings just in case. | ||
| Dave_02_1200 |
See Buellistic's post above. He will send you clear instructions for correctly setting belt tension. Any other method will be a less precise "guesstimate". Correct belt tension is absolutely necessary for a reliable Buell. | ||
| Zedhead47 |
Pm sent. |
