Bosch motor failure

[Rich_uk]

I've just been out on our other Bosch bike (Liqbike) and tried it without power and it felt the same so I think the resistance I felt was just because I wasn't used to riding without the motor. I did notice though that the motor was much quieter than my Cube, approx 10 miles on the clock vs approx 320 on mine though.

 

[Haibike Rider]

Anyone suffering with a Bosch motor out of warranty can breath a sigh of relief! Circuit boards are very robust and gears seem to be standing the test of time but the bearings do fail from time to time. With the right knowledge and equipment, they are pretty straight forward to change and relatively cheap. I can't promote my business on here but hopefully I can show you a helpful video on the Bosch CX motor

[promotional video reported and removed by admin]

 

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so what does it cost to bung it in a box and send it for a full service if i cant be arsed

 

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[promotional link removed by admin]

Complete motor overhaul:
Fit motor to test rig and test. Change main motor bearing, both crankshaft bearings, main motor clutch bearing, Idler gear clutch bearing, idler gear deep groove ball bearing, main motor drive gear bearing, small gear cluster deep groove ball bearing and needle roller bearing and transfer gear bearing. Refit to test rig, re-test. Includes new crankshaft circlips, both crankshaft O-rings, drive sprocket O-ring, new motor seal and grease.

£279.26

 

[Haibike Rider]

Promotion removed by admin

 

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my 4 year old bearings are fine atm i dont ride in the rain if i can help it and keep the drive clean and greased with a bearing protector.

loads of crap builds up if you dont take care in that area

you could also water proof the pcb while ur at it

https://uk.farnell.com/ambersil/6130004030/acrylic-con-coating-400ml/dp/1666251?mckv=gDNJWdyK_dc|pcrid|78108373029|&gross_price=true&CATCI=pla-131292447429&CAAGID=20220722109&CMP=KNC-GUK-GEN-SHOPPING-AMBERSIL&CAGPSPN=pla&gclid=CjwKCAjw8uLcBRACEiwAaL6MSTMJRShZw5LQRlWOLEoEzC4lBSZbW2BJfCzBJPpyRH7hYyhUqv0xlxoCzGwQAvD_BwE&CAWELAID=120173390000071760

 

[Haibike Rider]

my 4 year old bearings are fine atm i dont ride in the rain if i can help it and keep the drive clean and greased with a bearing protector.

loads of crap builds up if you dont take care in that area

you could also water proof the pcb while ur at it

https://uk.farnell.com/ambersil/6130004030/acrylic-con-coating-400ml/dp/1666251?mckv=gDNJWdyK_dc|pcrid|78108373029|&gross_price=true&CATCI=pla-131292447429&CAAGID=20220722109&CMP=KNC-GUK-GEN-SHOPPING-AMBERSIL&CAGPSPN=pla&gclid=CjwKCAjw8uLcBRACEiwAaL6MSTMJRShZw5LQRlWOLEoEzC4lBSZbW2BJfCzBJPpyRH7hYyhUqv0xlxoCzGwQAvD_BwE&CAWELAID=120173390000071760

No need really. The PCB is pretty good at resisting moisture. This is a photo of the motor in the video. Water has been in there for some time. If you zoom in you can see water droplets on everything and water ran out when I removed the cover. No issues with the circuit board though!

 

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No need really. The PCB is pretty good at resisting moisture. This is a photo of the motor in the video. Water has been in there for some time. If you zoom in you can see water droplets on everything and water ran out when I removed the cover. No issues with the circuit board though!

i can see some crud on the pcb but it might have a coat of something like the above on it but id still do it anyway as you cant buy those anywhere so better safe than sorry and its not going to take 2 mins is it