Тъй като се занимавам професионално с ремонти на eBike мотори, искам да дам няколко съвета на хората, които гледат това видео и го използват като инструкция. 1. при отварянето на мотора, бъдете по-внимателни и не използвайте толкова удари с чук (макар и пластмасов/гумен). Намере подходящи широки отвертки и надигнете внимателно капака от всички страни. 2. за да изкарате голямото метално зъбно колело, изполвайте леки удари и въртене на оста. По-добре е да се изолзва специфичен издърпвач на лагери. Намиращия се отдолу сензор за въртящ момент и неговата платка може лесно да се повредят. 3. не поставяйте демонтрания сензор в близост до магнити, особено в близост до магнита на ротора. 4. при завиването на болтчетата на капана на мотора е важно да използвате Loctite 270 (или подобно лепило за резби) и да завиете болтовете с 8-9Nm! При подмяната на лагерите и уплътненията има още много неща, които трябва да се вземат на предвид, за да бъде извършен ремонта така, че да може човек със спокойствие да се наслаждава на още много безпроблемни километри с EBike-a си! Поздрави Явор, EBMR e-Bike Motorreparatur
13:40 What is the theory on the torque sensor device there, it looks like it would only sense rpms. I realize there is a motherboard to do some analysis with the data, but how is it sensing rider input level force, rather than just rpm to send to the motherboard?
Be careful tearing these units down as parts are very difficult to get to repair yourself. My Gen 4 was noisy so I disassembled in hopes it was an easy repair. I intended to get bearings and seals but did not realize I couldn't source them anywhere. Put it back together and took the motor to a dealer and was forced to but a new one. 18 month old eMTB with about 300 miles on it. Very disappointed with Bosch and their support or lack of.
@PaulShutts. He could get one if he took it to dealer instead of trying himself. Now he probably screwed something else up. Also Im not sure if noise alone is enough for a free service warranty .
Those new China bosch is rubbish, I wont get another ebike I guess ever especialy from this brand 4 sure never again, mine starts and shows for 2 sec an empty batery flickering once even though is full, and after shuts down as doesn't connect...and has only a little over 8000km...very dissapointing!🤮🤬
Good video but would like to see you service it. I mean a full service. How long can these CX line motors go before they really require a service? Why is Bosch not selling spare parts and barrings?
Great video ! When the engine must be disansambled ? Please share with us the online store where we can find spare parts for Cx gen 4. Thank you very much !
If you are doing it yourself,take the affected bearings out and measure them with engineering calipers,and buy new ones from a bearing company,NOT e bay or amazon as they are cheap chinese rubbish
I can only see one entry which water can penetrate and that’s around the crankshaft maybe once out of warranty best I get some water proof grease and seal it from the inside
You can also seal it from the outside with grease around the crank. Opening a sealed system is never a good idea. You could even introduce moisture from the air in it for no reason. If the motor doesn't behave abnormal or make strange noises then it does not need to be opened.
Greetings, I was looking for it and I can't find it. If you can help, tell me what the connector on the motor is for, which jack is for what purpose, thanks in advance.
thanks for posting this video. I have ridden my 2019 TREK Powerfly LT 9.7+ through too much mud and dirt, are there shops in northern California you can recommend to do a motor rebuild? I don't have the tools, time or expertise. TIA
Thanks for the video. I actually disassembled my engine and the circuit board got wet. Do you know where I can get spare parts? I have already asked Bosch and other dealers, but the spare parts only go to dealers.
hello i have ebike with bosch gen 4 smart system(grand canyon on:9) and also ABS brakes is there any possible to install any speed unlocker there i ordered eplus bosch smart system no rim magnet advange probabli this box will not work correktli there
That stator is not small for 250 watts. It's even encapsulated in aluminium, so cooling is good. It should be able to push closer to 1000 watts. I see a remap coming up.
My Bosch Gen 3 Performance Line CX has done 12,500km and has never been disassembled since manufacture the bike is now six years old. So as long as you don't ride the bike underwater or use a pressure washer or a hose jet stream when cleaning the bike. The sould last just as long as my motor.
Има и в испански. Въпросът е има ли необходимост и какъв е шумът! Много клиенти си мислят, че двигателят е станал шумен, а проблемът е напр. в трансмисията!
Garbage. They make new units every year, and it’s from Germany, you have to order every part, if you can even get anything for that unit. Get a Rocky Mountain. Twice the torque, which means twice the traction, and the whole setup is super simple, a toddler could rebuild it with their plastic tool set they got for their 1st birthday.
Тъй като се занимавам професионално с ремонти на eBike мотори, искам да дам няколко съвета на хората, които гледат това видео и го използват като инструкция.
1. при отварянето на мотора, бъдете по-внимателни и не използвайте толкова удари с чук (макар и пластмасов/гумен). Намере подходящи широки отвертки и надигнете внимателно капака от всички страни.
2. за да изкарате голямото метално зъбно колело, изполвайте леки удари и въртене на оста. По-добре е да се изолзва специфичен издърпвач на лагери. Намиращия се отдолу сензор за въртящ момент и неговата платка може лесно да се повредят.
3. не поставяйте демонтрания сензор в близост до магнити, особено в близост до магнита на ротора.
4. при завиването на болтчетата на капана на мотора е важно да използвате Loctite 270 (или подобно лепило за резби) и да завиете болтовете с 8-9Nm!
При подмяната на лагерите и уплътненията има още много неща, които трябва да се вземат на предвид, за да бъде извършен ремонта така, че да може човек със спокойствие да се наслаждава на още много безпроблемни километри с EBike-a си!
Поздрави Явор, EBMR e-Bike Motorreparatur
Здравейте, когато сменяте повреден двигател Bosch GEN4 с нов, как се извършва програмирането? Бихте ли обяснили подробно?
благодаря ви
You forgot to grease the gears
13:40 What is the theory on the torque sensor device there, it looks like it would only sense rpms. I realize there is a motherboard to do some analysis with the data, but how is it sensing rider input level force, rather than just rpm to send to the motherboard?
Be careful tearing these units down as parts are very difficult to get to repair yourself. My Gen 4 was noisy so I disassembled in hopes it was an easy repair. I intended to get bearings and seals but did not realize I couldn't source them anywhere. Put it back together and took the motor to a dealer and was forced to but a new one. 18 month old eMTB with about 300 miles on it. Very disappointed with Bosch and their support or lack of.
@PaulShutts. He could get one if he took it to dealer instead of trying himself. Now he probably screwed something else up. Also Im not sure if noise alone is enough for a free service warranty .
I know that! It is not an easy fix!
Those new China bosch is rubbish, I wont get another ebike I guess ever especialy from this brand 4 sure never again, mine starts and shows for 2 sec an empty batery flickering once even though is full, and after shuts down as doesn't connect...and has only a little over 8000km...very dissapointing!🤮🤬
Good video but would like to see you service it. I mean a full service.
How long can these CX line motors go before they really require a service?
Why is Bosch not selling spare parts and barrings?
Great video ! When the engine must be disansambled ? Please share with us the online store where we can find spare parts for Cx gen 4. Thank you very much !
"Performance line bearings" sell parts for bosch gen 4 Google them
Super film , teraz wiem jak ten silnik jest zbudowany. Masz może wymiary wszystkich łożysk do tego silnika?
If you are doing it yourself,take the affected bearings out and measure them with engineering calipers,and buy new ones from a bearing company,NOT e bay or amazon as they are cheap chinese rubbish
Hi, found a website in Spain with all the bearings!
@@powerbikesbgpor favor cual es esta web. Gracias.
I can only see one entry which water can penetrate and that’s around the crankshaft maybe once out of warranty best I get some water proof grease and seal it from the inside
You can also seal it from the outside with grease around the crank.
Opening a sealed system is never a good idea. You could even introduce moisture from the air in it for no reason.
If the motor doesn't behave abnormal or make strange noises then it does not need to be opened.
Mine makes a small noise while driving...should I open and grease everything thete 😀
Greetings, I was looking for it and I can't find it. If you can help, tell me what the connector on the motor is for, which jack is for what purpose, thanks in advance.
Fantastico
thanks for posting this video. I have ridden my 2019 TREK Powerfly LT 9.7+ through too much mud and dirt, are there shops in northern California you can recommend to do a motor rebuild? I don't have the tools, time or expertise. TIA
Co się stało z silnikiem?
Co stało się z silnikiem? Jakie objawy?
This motor has done 10299km? And this was its first service?
Thanks for the video.
I actually disassembled my engine and the circuit board got wet. Do you know where I can get spare parts?
I have already asked Bosch and other dealers, but the spare parts only go to dealers.
You can buy a new engine from a dealer or you can buy a spare motor and use it as a donor!
This will not solve your problem, as another Mainboard PCB will not work with your torque sensor...
@@ebmr-ebikemotorreparatur did you tried to swap a mother board to another engne?
@@powerbikesbg multiple times aready
@@ebmr-ebikemotorreparaturwhy it shouldn't work?
Bro ,any updates on the volspeed 4 with smart system ?
Still working fine?
Hi, have installed couple of them..no problems! Regards
@@powerbikesbg thanks 👍👍
I have a trek rail with the CX gen 4 thinking about buying a spare used low mileage motor. Is there anyway to test the motor out of the bike ? Thanks
hello
i have ebike with bosch gen 4 smart system(grand canyon on:9) and also ABS brakes is there any possible to install any speed unlocker there
i ordered eplus bosch smart system no rim magnet advange
probabli this box will not work correktli there
so little copper for so much power? Wow... Bafang bbshd needs to step up bro!
That stator is not small for 250 watts. It's even encapsulated in aluminium, so cooling is good. It should be able to push closer to 1000 watts. I see a remap coming up.
@@mike_oe would be sweet if it could handle a 48V battery.. to make it all custom.
Do you know the rotor or motor max speed rpm?
how often you have to disassemble to check the motor?
My Bosch Gen 3 Performance Line CX has done 12,500km and has never been disassembled since manufacture the bike is now six years old.
So as long as you don't ride the bike underwater or use a pressure washer or a hose jet stream when cleaning the bike. The sould last just as long as my motor.
I look for u on Facebook
I have a question ab a bike and I cannot find u and your link on the description it does not work
Здравей.Имам същият мотор 4 поколение.Напоследък ми се 'струва' че е шумен .Въпросът ми е дали извършваш смяна на лагери?
За тези двигатели не се предлагат OEM части! Ако си от София мога да видя на място за какво иде реч!
Благодаря,не съм от София.Предлагат цял комплект лагери и уплътнения само на един Английски инт.магазин.@@powerbikesbg
Има и в испански. Въпросът е има ли необходимост и какъв е шумът! Много клиенти си мислят, че двигателят е станал шумен, а проблемът е напр. в трансмисията!
Do you have the dimensions for this motor? Any units. Thank you.
Hi, have to measure...do not have it on paper!
@@powerbikesbg Tysm!
Mam błąd 500 co może być uszkodzone w silniku
Flickering lights gave me a seizure watching this 😩
En francais please
You havent fixed nothing ,zero bearing change ,gearbox not opened Waiste of time
I guess the title was right, "assembly and disassembly" rather than repair.
guess why you can choose an image rate of either 50 or 60 Hertz? Your choice was a poor one - another video, that produces head aches...
Garbage. They make new units every year, and it’s from Germany, you have to order every part, if you can even get anything for that unit. Get a Rocky Mountain. Twice the torque, which means twice the traction, and the whole setup is super simple, a toddler could rebuild it with their plastic tool set they got for their 1st birthday.
can you give more details about what you said ? Is Rocky Mountain a E-Bike engine ? Or a bicycle company ?
@@ImplantedMemories They design, the bike, and the drive unit. The only bicycle company that went their own way, so far.
Isn't it 108 Nm vs 85 Nm? A quarter more?
Talking shit.
Bosch gen 4 is running in nearly every bike around here. Calling them garbage sounds like garbage
Vaya chapuza, si no abres el eje que es donde tienen los problemas estos motores no sirve de nada,solo vas a confundir al publico
Bosh is garbage