|
|
Post by jimbo on Apr 26, 2020 18:27:58 GMT
I have studied the lencoheaven guide and it looks straight forward. Its not that complicated but you know what springy things can do and there are lots of them in and around the motor!  |
|
|
|
Post by firebottle on Apr 27, 2020 13:57:33 GMT
Good one James. I like your in depth attention.
|
|
|
|
Post by brian2957 on Apr 27, 2020 14:18:46 GMT
Well done matey . You're now a Lenco GL75 service engineer  |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,400
|
Post by Bigman80 on Apr 27, 2020 14:20:15 GMT
Fantastic stuff Jim....I almost want one to take apart lol
|
|
|
|
Post by jimbo on Apr 27, 2020 14:26:54 GMT
Its all good fun in Lencoland! |
|
|
|
Post by rexton on Apr 27, 2020 15:39:37 GMT
Huzzah! You've done it!! That's it you've now mastered the Lenco!!!
|
|
|
|
Post by jimbo on Apr 27, 2020 15:46:23 GMT
Huzzah! You've done it!! That's it you've now mastered the Lenco!!! I think motor noise issues with Lencos must be their number one issue. Having taken the motor apart and gained a good understanding of how it works has been very fruitful.
I am not quite there yet as there are a few other bits to be completed before I am up and running.
|
|
|
|
Post by brian2957 on Apr 27, 2020 17:47:14 GMT
Went up to the loft and dug out my GL75 this afternoon . I was going to send the motor down to James to service , but thankfully it seems OK ( once I remembered to loosen the transit screws ) Attachments:
|
|
|
|
Post by macca on Apr 27, 2020 17:54:14 GMT
Lovely finish on that plinth Bri. Practically glowing.
|
|
|
|
Post by jimbo on Apr 27, 2020 18:26:39 GMT
Yes that is very nice Brian.
|
|
|
|
Post by gninnam on Apr 27, 2020 18:46:08 GMT
Yes - I remember one of the motors on a noisy GL75 I had to do the same thing.
I thought the LH site had a section on doing this but obviously not.
Well done and slowly getting there.
|
|
|
|
Post by brian2957 on Apr 27, 2020 19:06:48 GMT
|
|
|
|
Post by jimbo on Apr 27, 2020 19:23:55 GMT
Yes - I remember one of the motors on a noisy GL75 I had to do the same thing. I thought the LH site had a section on doing this but obviously not. Well done and slowly getting there. To be fair to LH there is a guide to centering the motor coils but I was not given this advice when consulting the site. I was just told to service the motor.
Having discovered what a big deal this is in regards to the motor noise I am surprised there is not more mentioned about it on LH.
I am enjoying the project but did not really want to rip the motor apart! |
|
|
|
Post by macca on Apr 27, 2020 19:24:09 GMT
It is a lovely finish, I could look at that all day. To think I was once offered a roomful of GL75s for nothing back in 1993 and I turned the bloke down. Who knew?
|
|
|
|
Post by jimbo on Apr 27, 2020 19:43:33 GMT
Mine has arrived Brian so I will get polishing the plinth. I would show you a picture of my polished platter but you will need to wear sunglasses! |
|
|
|
Post by brian2957 on Apr 27, 2020 20:12:16 GMT
Just use it sparingly James . It doesn't take much elbow grease . I'll get me sunnies If I can find them ...we don't see the sun much oop north  |
|
|
|
Post by jimbo on Apr 28, 2020 20:04:56 GMT
Just use it sparingly James . It doesn't take much elbow grease . I'll get me sunnies If I can find them ...we don't see the sun much oop north It has arrived |
|
|
|
Post by brian2957 on Apr 29, 2020 18:07:58 GMT
Well done matey , excellent news |
|
|
|
Post by jimbo on Apr 29, 2020 18:15:43 GMT
Well done matey , excellent news Just send yours down mate and I will give it a service! |
|
|
|
Post by gninnam on Apr 29, 2020 18:49:18 GMT
Great job - brings back memories of the few motors that I have stripped and put back again. You are right with how quiet they can be once fully sorted. Looking forward to the next instalment. Do you have the gizmo for lining up the idler wheel ?  |
|
|
|
Post by gninnam on Apr 29, 2020 20:28:40 GMT
It did as it makes sure that the wheel is at the correct angle when turning the platter so no drag - lessens the motor noise getting through so well worth it to be honest.
I think the details of how to make it are on Lenco Heaven. I did have a spare one but gave it to someone.
If your desperate I can pop it in the post for you then once finished with you can send it back??
|
|
|
|
Post by brian2957 on Apr 29, 2020 20:36:32 GMT
How do you adjust the angle of the wheel ?
|
|
|
|
Post by gninnam on Apr 29, 2020 21:15:27 GMT
By bending the idler wheel arm - only needs very small amounts and I believe it is what Lenco did during QA
|
|
|
|
Post by jimbo on Apr 30, 2020 4:55:52 GMT
By bending the idler wheel arm - only needs very small amounts and I believe it is what Lenco did during QA Andy what did you use to bend the idler arm with?
Did aligning the idler wheel make a difference to the speed or the sound? |
|
|
|
Post by brian2957 on Apr 30, 2020 8:42:22 GMT
That's interesting . Thanks . Seems a bit barbaric but I suppose it's the only was to adjust the angle of the idler wheel .
|
|
|
|
Post by jimbo on Apr 30, 2020 9:11:00 GMT
It did as it makes sure that the wheel is at the correct angle when turning the platter so no drag - lessens the motor noise getting through so well worth it to be honest. I think the details of how to make it are on Lenco Heaven. I did have a spare one but gave it to someone. If your desperate I can pop it in the post for you then once finished with you can send it back?? Sorry I missed this post before I replied to you. Thanks for the answer regarding lessening noise and drag. If you could possibly let be borrow your jig that would be much appreciated. I can PM you my details. |
|
|
|
Post by brian2957 on Apr 30, 2020 11:45:43 GMT
I will be interested in your findings with this jig James |
|
|
|
Post by jimbo on Apr 30, 2020 11:51:55 GMT
I will be interested in your findings with this jig James I have seen the template on Lenco Heaven but I did not know what the benefits were until Andy mentioned it in his post. My GL75 is now totally silent so I may not have to tweak the idler that much!? |
|
|
|
Post by brian2957 on Apr 30, 2020 11:58:26 GMT
Every little helps |
|
|
|
Post by rexton on Apr 30, 2020 16:25:22 GMT
You still need to check your idler arm bearings. You could have it perfectly aligned and it will wobble around. The platter will also spin imperfectly.
|
|
