Motor cutting out after a few seconds

[crE]

Hi all.

I mentioned this in another topic last week but it'd happening again.

After sorting out my brake woes on the way home today my sirocco cdl has decided to stop pedal assisting. However, the throttle is fully functional.

After turning off the battery and back on again. The pedal assist will work for a few seconds and then won't work until the unit is turned off and back on..

Here is a video... https://docs.google.com/file/d/0BztB4N7mO2y9cUFuWVRxY2pWOWc/edit?usp=docslist_api

I'm not having much luck with ebikes so far

 

[trex]

no, you are not very lucky with this. Did you contact support? what did they say?

 

[crE]

Sent me the tool. I managed to tighten the silver cup about an 8th of a turn before the tool bent and mis-shaped. However, the pedal assist problem didn't seem to be fixed by this. It was working anyway. My problem was the motor was loose. It does seem to be tight now.

It was initially sent out to me to stop the creaking. Which it did. For 20 miles. Now the creaking seems to be creeping it's way back slowly.

 

[trex]

did you tell them about the problem with the pedelec sensor?

 

[crE]

I believe I did. But at the time I attributed it to my brakes cutting out the motor. Although now I realise that isn't the case , as the throttle works just fine

 

[trex]

I watched the video, I suspect a faulty pedelec sensor.

 

[crE]

 

[trex]

Let Andy @ Woosh know about this - they'll sort it tomorrow.

 

[crE]

I'm just about to email now. It's a real bummer. It's been great for me to get excercise and fit it into my daily routine (commute). I really benefit from it. To thr point where I don't want to drive my car into work.

I just want a working bike! The support has been great from woosh. Can't really fault it. Just a shame I've had these problems.

Anyway. Sob story over. I'll send Andy an email

 

[crE]

Andy is sending me a replacement pedelec sensor and a new tool. Still impressed with the service. Just wish I lived closer to Southend on sea!

 

[trex]

Andy is a good guy.

 

[crE]

Hi guys.

Fitting the new pedelec sensor at the moment. But it seems I can't easily thread the old wire out through the frame. It's too tight. If I did managed to squeeze it out there's no chance I'm getting the new cable inside and through it. Am I missing something here??

 

[trex]

I would fit the new sensor with the cable outside and leave the old sensor dangling where it is for a while.
After I am sure that the fix works, I'll ask Andy how I am going to thread the new cable through.

 

[crE]

It appears to be working!! However. A creak has developed. Different than before. It happens when thr motor is off too.

Here is a video

https://docs.google.com/file/d/0BztB4N7mO2y9bUFIQkYzNndkc28/edit?usp=docslist_api

Is it the crank?

 

[crE]

Oh. It also creaks upon apply the throttle (no pedalling) when starting from a standstill. It stops after the bike has gained momentum however

 

[trex]

it sounds like the chain is biting on the side of the cogs' teeth. Turn the bike upside down, then turn the cranks - that way you can hear where the creaks come from.

 

[crE]

Thanks for the advice, again!

I turned thr bike upside down but the creak isn't evident. It only happens when there is some load.

I shot another video... https://docs.google.com/file/d/0BztB4N7mO2y9ckhiWTdnZXplTkE/edit?usp=docslist_api

It's less or a creak now, sounds more like cracking. :/

 

[john h]

That sounded to me like it was arcing, the minute you apply the crank,( ie given it power) sorry to hear of your troubles with this bike,

 

[crE]

Hi John. What do you mean?

 

[trex]

It sounds like coming straight from the left crank.
if the right crank does not make the creak then the fault is in the left crank.
If this is the case, remove the left crank, put some grease on the bottom bracket spindle and the crank bolt. Tighten it slowly and check for the tell tale creak. The grease will help the crank to mate with the spindle.