June 24, 20223 yr Hello all, After 110km my new ( 1 month ) tsdz2 motor started making a noise even without being turned on. Does anyone had this kind of noise before? Any help would be appreciated. thank you very much! Regards, Filipe
June 24, 20223 yr Sounds pretty much normal to me, some of them are quiet and some or a bit noisier. The QC isn't the best so depends where and which factory is was made in. If you search places like the german and ES forum one will find varying posts of some motors being nosiy out of the box.
June 24, 20223 yr Author Sounds pretty much normal to me, some of them are quiet and some or a bit noisier. The QC isn't the best so depends where and which factory is was made in. If you search places like the german and ES forum one will find varying posts of some motors being nosiy out of the box. Thank you for your reply, the thing is , it was much quieter before. It 'feels' a bit rough while spining the pedals by hand, like some bearing or something
June 24, 20223 yr Apologies for asking this, but have you tried spinning the cranks with the chain removed? Noises in aluminium frames travel and so by removing the chain, you can be more certain that any untoward noise is definitely coming from the motor assembly.
June 24, 20223 yr Author Apologies for asking this, but have you tried spinning the cranks with the chain removed? Noises in aluminium frames travel and so by removing the chain, you can be more certain that any untoward noise is definitely coming from the motor assembly. Hi, thank you for your reply, Yes, the noise is the same
June 26, 20223 yr Hi, thank you for your reply, Yes, the noise is the same OK, try this - lift off the chain and with the motor powered off, rotate the pedals/cranks both forward and backward. Do you get the noise in both directions of crank rotation or just in one direction? If in just one direction, which direction is it? There are two clutches in the motor, one in the (in)famous blue gear and another in what is called the sprag clutch. There's an interesting animation of the TSDZ2 on youtube - if the noise only occurs in one direction of rotation then one of the two clutches is the issue. If the noise is in both directions, then one of the main bearings is causing it. (search youtube for 'sprag clutch animation' to see how they work). Changing the blue gear is easy, the sprag clutch not so easy but doable for someone handy with tools. Make a video of the test as if nothing else, it's be a good thing to show the seller if you go for a refund. Let use know how you get on. Cheers, AlanM
June 27, 20223 yr Author thank you very much for your reply, If I rotate backwards it does not make any noise, only when I rotate forward, and it makes noise even without power nor chain. According to the video you sent It might be this gear. Is it controlled by the blue gear bearing ? OK, try this - lift off the chain and with the motor powered off, rotate the pedals/cranks both forward and backward. Do you get the noise in both directions of crank rotation or just in one direction? If in just one direction, which direction is it? There are two clutches in the motor, one in the (in)famous blue gear and another in what is called the sprag clutch. There's an interesting animation of the TSDZ2 on youtube - if the noise only occurs in one direction of rotation then one of the two clutches is the issue. If the noise is in both directions, then one of the main bearings is causing it. (search youtube for 'sprag clutch animation' to see how they work). Changing the blue gear is easy, the sprag clutch not so easy but doable for someone handy with tools. Make a video of the test as if nothing else, it's be a good thing to show the seller if you go for a refund. Let use know how you get on. Cheers, AlanM
June 27, 20223 yr Hi, thank you for your reply, Yes, the noise is the same it seems to me that your blue gear is damaged.
June 27, 20223 yr Thats an interesting observation by [mention=6303]Woosh[/mention] who as a retailer of these motors has much experience with them. My thoughts are that the noise is coming from one of the two clutches ('sprag' or 'blue gear') when the clutch is disengaged I'm looking back at the animation I linked to and this is my take on the two clutches: - when pedalling in the foward direction, the sprag clutch is engaged which turns the main gear wheel and the pinion gear whilst the blue gear clutch is disengaged - if you pedal backwards, the sprag clutch is disengaged (but no noise) and thus the main gear will not rotate, nor will the pinion gear and nor will the blue gear shaft So my logic takes me to concluding the same as [mention=6303]Woosh[/mention] that the blue gear assembly is the issue. The blue gear is cheap to buy and not difficult to replace but you'll have to break the seal on the motor case to gain access. Thus if you want to preserve your warranty, you should contact the supplier about this issue - they may send you a replacement blue gear for you to fit but this means they are giving you implicit permission to open the motor. If preserving warranty is not a concern, order up a blue gear, watch Youtube, and go for it. Please let us know what course of action you take and the resolution.
June 27, 20223 yr Author Thats an interesting observation by [mention=6303]Woosh[/mention] who as a retailer of these motors has much experience with them. My thoughts are that the noise is coming from one of the two clutches ('sprag' or 'blue gear') when the clutch is disengaged I'm looking back at the animation I linked to and this is my take on the two clutches: - when pedalling in the foward direction, the sprag clutch is engaged which turns the main gear wheel and the pinion gear whilst the blue gear clutch is disengaged - if you pedal backwards, the sprag clutch is disengaged (but no noise) and thus the main gear will not rotate, nor will the pinion gear and nor will the blue gear shaft So my logic takes me to concluding the same as [mention=6303]Woosh[/mention] that the blue gear assembly is the issue. The blue gear is cheap to buy and not difficult to replace but you'll have to break the seal on the motor case to gain access. Thus if you want to preserve your warranty, you should contact the supplier about this issue - they may send you a replacement blue gear for you to fit but this means they are giving you implicit permission to open the motor. If preserving warranty is not a concern, order up a blue gear, watch Youtube, and go for it. Please let us know what course of action you take and the resolution. I contacted the supplier and they told me to open the motor and tighten some screws so, warranty seal was already broken with permission from the supplier. I will contact again asking for a replacement blue gear. thank you for your time, i will get back to this post as soon as I have it tried out. it seems to me that your blue gear is damaged. Thank you for your feedback, I will try to replace it.
June 28, 20223 yr So what were the screws suggested might need tightening and were they loose anyway?
June 28, 20223 yr Author So what were the screws suggested might need tightening and were they loose anyway? They sent me this: But they were tightened and did nothing
June 28, 20223 yr What teh seller is actually saying is they haven't a clue and just clutching at straws.
June 28, 20223 yr Author What teh seller is actually saying is they haven't a clue and just clutching at straws. they asked me to remove the blue gear and check for noise, I will try to do that as soon as I can
June 28, 20223 yr You probably know this already - to access the blue gear, it is those 6 screws are what hold the motor in place. After removing the coloured wires and 6 screws, the motor can be pulled out but may require tapping with a Mallet to loosen it. Search YouTube 'tsdz2 disassembly' where the vid by 'Okfeet ebike' shows this clearly.
June 28, 20223 yr Author You probably know this already - to access the blue gear, it is those 6 screws are what hold the motor in place. After removing the coloured wires and 6 screws, the motor can be pulled out but may require tapping with a Mallet to loosen it. Search YouTube 'tsdz2 disassembly' where the vid by 'Okfeet ebike' shows this clearly. Thanks! I will check that!
June 29, 20223 yr Author Ok so I opened and checked with the blue gear : without the blue gear: and the noise is the same. Can anyone tell me if this slack is normal? since the noise is only present on the forward movement it might be the main gear or the bearing pointed in red You probably know this already - to access the blue gear, it is those 6 screws are what hold the motor in place. After removing the coloured wires and 6 screws, the motor can be pulled out but may require tapping with a Mallet to loosen it. Search YouTube 'tsdz2 disassembly' where the vid by 'Okfeet ebike' shows this clearly. it seems to me that your blue gear is damaged.
June 29, 20223 yr I love your approach to diagnostics - a person after my own heart - brilliant Anyway, the blue gear slack - hmmm, it does seem wobbly, but TBH, I can't truly remember if mine was like that or not - maybe someone like [mention=6303]Woosh[/mention] has more direct experience. Having stripped down that far, if it were me I'd next remove the main gear wheel with the sprag clutch in it. This would leave you with just the axle left in place to which you could attach a pedal arm and repeat the test. And of course you'll have the gear wheel/sprag clutch to check on how that all looks/feels This youtube vid is the one I followed when I changed my sprag clutch and is good on showing how to remove the main gear wheel - again a straight forward procedure if you have a few basic tools. PSW Power sell a new gear wheel complete with sprag clutch installed if needed. PS - I changed my sprag clutch as I had the symptoms shown in the video - however, it turned out to be my freehub in the back wheel - mind you, I had done a good few 10s of thousands of miles on it! The plus side is I gained the confidence and experience in doing the sprag clutch job - that's what I like about these motors: just about everything is accessible/replaceable.
June 29, 20223 yr they asked me to remove the blue gear and check for noise, I will try to do that as soon as I can Ok so I opened and checked with the blue gear : without the blue gear: and the noise is the same. you have demonstrated that the noise comes from the main gear, not the blue gear. You will have to remove the main gear, check for damage, regrease and re-assemble. There are a number of ballbearings, one of them is possibly damaged by water ingress.
July 12, 20223 yr Author Hi [mention=36528]Flipoidix[/mention] - any update on resolving the noisy motor? Hi, I have found where the noise comes from, but still waiting from feedback of the seller. The noise comes from the gear in orange, I believe there is some slack that should not be present causing the rattle. You can see this in this video: ( Blue gear Side ) or this ( slack not very clear but present, noise definitely comes from this small gear )
July 12, 20223 yr Hi, I have found where the noise comes from, but still waiting from feedback of the seller. did you check that the blue gear is actually disengaged when you turn the cranks by hand?
July 12, 20223 yr Author did you check that the blue gear is actually disengaged when you turn the cranks by hand? If I turn the cranks anti-clockwise it will not engage the blue gear ( nor the small gear ) but if I turn them clockwise they will engage and make noise: or ( other side )
July 12, 20223 yr when you turn the cranks by hand, the spindle in the middle of the blue gear mustn't rotate because the blue gear is disengaged. Can you confirm that it is the case? Your video is good but my eyesight is not.
July 12, 20223 yr Author when you turn the cranks by hand, the spindle in the middle of the blue gear mustn't rotate because the blue gear is disengaged. Can you confirm that it is the case? Your video is good but my eyesight is not. When I spin by hand, the small gear makes the blue gear spin as well , isn't it supposed to? without the blue gear you can see the spindle spin and with the blue gear in place everything spins ( spindle and gear ) I think the problem is with this part that has some slack causing the metalic noise
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