I replaced the rear tire, tightened the drive belt and I have a problem. When I push the Spyder forward, I can hear a steady, gentle knocking in the rear wheel. It sounds like the belt is too tight. But I loosened it and there is no change and the belt cannot be loosened any more. When I reverse the Spyder, nothing knocks. When I lifted the rear wheel and turned it, the knocking stopped when I loosened the belt. When I put it on the ground, it knocks again. Any ideas? Has anyone had a similar experience?
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Knocking in the rear wheel of a Spyder ST Ltd 998 - Any ideas?
- Thread starter Marek
- Start date
BajaRon
Well-known member
I don't have an answer for you. But I can say that you should not guess about belt tension. Get yourself an accurate gauge and set tension between 120 and 160 lbs. The Krikit II is one option. But there are others.
You also do not mention if your belt is running on the pulleys correctly. The belt will usually run closer to the inside when going forward, and move towards the outside of the pulleys when reversed. This may be your source since the pattern fits. But I am sceptical because I don't have a good reason for it.
You also do not mention if your belt is running on the pulleys correctly. The belt will usually run closer to the inside when going forward, and move towards the outside of the pulleys when reversed. This may be your source since the pattern fits. But I am sceptical because I don't have a good reason for it.
I'd think that's probably the most likely cause...
Did you check &/or replace the rear wheel/axle bearings when you replaced the rear tire?? Without going back & checking, I'm not sure the W/shop manual doesn't recommend that you replace them at every tire change anyway, altho I certainly don't and I doubt too many would do it that often, especially if they're still running a Kenda/Kenda clone back there; but I still check them every time & replace as and when necessary. After all, the wheel's off anyway, isn't it?!
Mikey
Well-known member
Have you watched any videos on how to adjust your belt, or remove your tire and put it back on? There is a set of steps you have to do and things to look out for, and if you didn't have a problem before you messed with it, I would say you missed a step or two! It would be good if maybe we had a picture of what your wheel looks like from the rear! Like Ron said if that belt is not riding right on the pulley, it will make some weird noises! You can't adjust the belt by spinning it backwards, it will make you chase your tail, the end blocks on your swing arm they should not be loose when you get ready to tighten the axle! These are all the things you will see in the videos. You say you got play when rolling back and forth. is that play side to side, or back and forth? Did you not put both of the bushings back in the hub on the sides before you put the wheel back in?
BajaRon
Well-known member
I tend to agree with Peter. Though it would make more sense to make noise both ways. There are also spacers that need to go back as they were removed. Any play in the wheel is a good sign that the components were not assembled correctly.
I'd think that's probably the most likely cause...
Did you check &/or replace the rear wheel/axle bearings when you replaced the rear tire?? Without going back & checking, I'm not sure the W/shop manual doesn't recommend that you replace them at every tire change anyway, altho I certainly don't and I doubt too many would do it that often, especially if they're still running a Kenda/Kenda clone back there; but I still check them every time & replace as and when necessary. After all, the wheel's off anyway, isn't it?!
Yes, I would rather replace the bearings. It's only about $25. I just don't know if it's possible at home. If any of you have done it, it would be nice to get some practical advice
back and forth...
It's certainly not hard to do at home, nor on the side of the road in the middle of a 48°C+ day after riding 1000 miles from anywhere of consequence with all the necessary parts & just basic hand tools & a jack in the frunk for that matter...
Do you really need to ask me how I know that??
It's certainly not hard to do at home, nor on the side of the road in the middle of a 48°C+ day after riding 1000 miles from anywhere of consequence with all the necessary parts & just basic hand tools & a jack in the frunk for that matter...
Do you really need to ask me how I know that??
Bfromla
Well-known member
Believe is required every other tire change (short life Kendas -- 15k)I'd think that's probably the most likely cause...
Did you check &/or replace the rear wheel/axle bearings when you replaced the rear tire?? Without going back & checking, I'm not sure the W/shop manual doesn't recommend that you replace them at every tire change anyway, altho I certainly don't and I doubt too many would do it that often, especially if they're still running a Kenda/Kenda clone back there; but I still check them every time & replace as and when necessary. After all, the wheel's off anyway, isn't it?!
Mikey
Well-known member
They put Loctite on everything so yes you may have to use a little heat if you can't get them with an impact wrench!
I have 54k km and the bearings have not been replaced before. How often should I replace the front ones?
Bfromla
Well-known member
Sorry I don’t know, casually ask your service tech. Other thread https://www.spyderlovers.com/threads/front-wheel-bearings.135143/
pegasus1300
Well-known member
No I but I would dearly love to hear the full storyIt's certainly not hard to do at home, nor on the side of the road in the middle of a 48°C+ day after riding 1000 miles from anywhere of consequence with all the necessary parts & just basic hand tools & a jack in the frunk for that matter...
Do you really need to ask me how I know that??
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