Trailblazer 250 rattling noise
Hello, I just got a 2005 Trailblazer 250 for my kids to ride out on our place. Looks really clean, really good shape except for this rattle/dragging noise.
No noise when in nuetral revving or anything Doesn't make much noise when going slow, none I can tell in reverse Chain was loose, but I tightened it up, could probably go more, it still seems like it's rubbing on the metal swingarm... Nothing feels like it's slipping Here is a video clip of the sound it's making with my son driving https://www.dropbox.com/s/50f16evltf..._0355.mov?dl=0 If the video doesn't work, here is a sound clip of my son driving by Thanks for your help! |
1 Attachment(s)
Hard to tell with my ears not being as good as they once were,but jack up the rear end and roll the tire forward slowly. Check for any bearing crunch from the rear carrier housing,plus check for any stiff links on the chain or any tightening or loosening on the chain as it turns. If so,I'd replace the chain.If it's not a chain,sprocket or bearing problem,possible you have a worn silent chain jumping teeth in the gear case or slapping around. Another common problem on these atvs after they had a few years on them.
|
Originally Posted by old polaris tech
(Post 3383778)
Hard to tell with my ears not being as good as they once were,but jack up the rear end and roll the tire forward slowly. Check for any bearing crunch from the rear carrier housing,plus check for any stiff links on the chain or any tightening or loosening on the chain as it turns. If so,I'd replace the chain.If it's not a chain,sprocket or bearing problem,possible you have a worn silent chain jumping teeth in the gear case or slapping around. Another common problem on these atvs after they had a few years on them.
The chain seems pretty dry and was loose. I tightened a little, but it might need more. I will do some more checking on the chain today and sprockets Any tests to see if it's the silent chain? |
If a silent chain is really worn you'd hear a lot of grinding to the point some wouldn't even move,they'd just sit there and grind. One test you can try is to pull up to a post or tree and give it throttle. You should be able to tell if it's a front sprocket or external chain problem.Plus at times you can hear a worn silent chain jump in the gear case before the external sprocket and chain move. I'd still check the drive chain out with it jacked up off the ground along with checking for up and down play on the drive shaft or noisy,crunching rear carrier housing bearings. If the chain has tight spots and loose spots as the tire is turning,then usually time to replace the chain. Don't over look the front sprocket for worn/rounded teeth also.
|
Here is a picture and another video of the sound. To me I think it's the chain rubbing on the "pad" thats on top of the swingarm. Is it supposed to do that?
https://cimg4.ibsrv.net/gimg/atvconn...0d7201799.jpeg I put it up on stands and rolled the tires, here is the video of that https://www.dropbox.com/s/bpxor0jhon..._0359.mov?dl=0 thanks for the help! |
Originally Posted by old polaris tech
(Post 3383786)
If a silent chain is really worn you'd hear a lot of grinding to the point some wouldn't even move,they'd just sit there and grind. One test you can try is to pull up to a post or tree and give it throttle. You should be able to tell if it's a front sprocket or external chain problem.Plus at times you can hear a worn silent chain jump in the gear case before the external sprocket and chain move. I'd still check the drive chain out with it jacked up off the ground along with checking for up and down play on the drive shaft or noisy,crunching rear carrier housing bearings. If the chain has tight spots and loose spots as the tire is turning,then usually time to replace the chain. Don't over look the front sprocket for worn/rounded teeth also.
It appears the chain is hitting on some pad on the rear swingarm. Thats where the noise is coming from. Looks like its supposed to rid on that, maybe that HD plastic. The chain was dry so it's possible that chain is just junk making the noise worse. |
1 Attachment(s)
Sounds like the chain and front sprocket. Chain looks old,dry and worn plus I'd change out that sprocket also.Rear sprocket is usually stronger and can be reused in most cases. Complete sprocket and chain kits are on ebay for these,but make sure you get one with the oem style o-ring chain. Or you can get the sprocket separate,have a cycle shop cut a good DID,Regina,etc o-ring chain to the length you need. 76 link chain needed. 11 tooth sprocket. #3221043
|
Front sprockets wear out faster than the rear because they spin a lot faster.
|
Originally Posted by old polaris tech
(Post 3384099)
Sounds like the chain and front sprocket. Chain looks old,dry and worn plus I'd change out that sprocket also.Rear sprocket is usually stronger and can be reused in most cases. Complete sprocket and chain kits are on ebay for these,but make sure you get one with the oem style o-ring chain. Or you can get the sprocket separate,have a cycle shop cut a good DID,Regina,etc o-ring chain to the length you need. 76 link chain needed. 11 tooth sprocket. #3221043
thanks for that! Will get a new chain and sprocket. |
Originally Posted by lazyLfarmx5
(Post 3384792)
thanks for that! Will get a new chain and sprocket.
|
All times are GMT -5. The time now is 07:06 PM. |
© 2024 MH Sub I, LLC dba Internet Brands