4715 for me, what does that mean I wonder? Just checked it is dual capston...

@Rich do you know if he replaced your motor with a s/h unit, new old stock or something from a different source all together?

I think 4716 was the US version 120V/60Hz, but I'm not 100% sure.

I do not know what Benny put in my BG4002 for a "new" motor off the top of my head.  I will check his service receipt this long holiday weekend and report back here.  I may be completely wrong here, but I get the sense Benny may use rebuilt parts he has on hand in sort of a rolling fashion.  For my BM4000, maybe he simply took out the amplifier board and replaced it with one he already had rebuilt.  He will then use my former board for the next BM4000 repair.

Like I said, though, I may be completely wrong.

My receipt from Benny doesn't have any details regarding the motor. I'll take a look inside sometime this weekend and take a picture.

By the way, I'm still looking for an original servo pulley (the big one with à half-moon centre hole)... 

Anyone please?

Hi Jacques the thing is many of these are much the same, so no guarrentee your replacement will be any different! I think this is one part that could do with a retooling - I thought about a brass collar like you find with Mecanno stuck to original nylon pulley, if you could get it to stick!

Hi Olly,

Well it's not so much about the part itself, but it's actually very difficult to make it properly centered and precisely square to the worm screw. My pulley, taken from a 4002, is slightly wobbly. 

http://forum.beoworld.org/forums/t/36575.aspx?PageIndex=3

Hi 

I had a go and it seems that it wasnt the motor but the belt. When i removed the top panels i notided lots of green rubber everywhere and a very worn belt.

I replaced it with a band i had that was the same size(with much more tension) and it is now running like a dream.

Do you think it is still worth stripping the motor?

Also, do i need a specialist belt for this or will the rubber band i used work long term?

Was interesting having a look inside. although it took a while to get all the panels back in place neatly.

Thanks

Tom

Hmmm personally I would be a bit skeptical. If you ask me I would bet that is the motor making the noise and perhaps by adding a bit of tension (you can see that the original was loose) this has temporarily resolved the issue. It is up to you really. See how it runs without the belt if it is relatively quiet then I guess it could be left.

I personally strip all motors now if nothing else it might just extend their life and definately makes them run sweater, however it is a fidely job, you have to watch the brushes and that tiny circlip and the washers!

Belt kits can be sourced from Dillen (Martin).

Just out of interest, when you spin the shaft with your fingers (no belt attached) how long does the motor spin for? Should be a good few seconds!

Ill have to have a check to see how it spins and get back to you. I think the belt was slipping making the noise. It also explained why it ran smoothly sometimes as this was when it wasnt slipping.

I think i may still strip it down though as it must be getting on and i have all the equipment ready.

Are there any other motors that would benefit from a strip down?

Thanks

Tom

Like Olly, I doubt the belt alone could be responsible for the rattle.

What is that green stuff you saw inside? Was the belt green?

Looks like somebody 'fixed' the deck with an old office rubber band!😂