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Dore Westbury Mk2 drive pulley repair

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Canobi22/05/2017 09:32:54
23 forum posts
Hi folks

Are there any Dore Westbury owners/builders out there who could offer some guidance/tips for taking the planetary pulley section appart?

It's my first mill and I can't seem to find much info on it. I didn't know about the condition of the bushings till after I got it home, though after sticking a dial just about everywhere, I can at least say that they're the only problem with it, a good clean, a new set of bushings and she'll be right as rain again.

Here's how the lower half looked as it was, you can see where most of the original bushings went, both sides had a build-up of flakes around the edges and in corners:

[URL=http://s1225.photobucket.com/user/Can-obi/media/Mobile%20Uploads/IMG_20170514_192835.jpg.html][IMG]http://i1225.photobucket.com/albums/ee395/Can-obi/Mobile%20Uploads/IMG_20170514_192835.jpg[/IMG][/URL]

It was easier to see how close things came to permanent damage, the one side looks to be worn down to almost nothing.

[URL=http://s1225.photobucket.com/user/Can-obi/media/Mobile%20Uploads/20170518_173438.jpg.html][IMG]http://i1225.photobucket.com/albums/ee395/Can-obi/Mobile%20Uploads/20170518_173438.jpg[/IMG][/URL]

[URL=http://s1225.photobucket.com/user/Can-obi/media/Mobile%20Uploads/20170518_173608.jpg.html][IMG]http://i1225.photobucket.com/albums/ee395/Can-obi/Mobile%20Uploads/20170518_173608.jpg[/IMG][/URL]

I searched for ages but couldn't find out what the bushings were made of, I hazarded a guess at brass, but not 100% on that.

The lower half doesn't look like it will present much problem as far as replacing the bushing goes, simple press out/press in job, but the planetary half is beyond me.

I've taken a step back from my usual "have at it" approach having discovered how scarce these casting are, so I'm in no hurry to do something brash this early into proceedings.

I removed the four small bolts on top after taking this pic, but it didn't seem to do much:

[URL=http://s1225.photobucket.com/user/Can-obi/media/Mobile%20Uploads/20170518_171710.jpg.html][IMG]http://i1225.photobucket.com/albums/ee395/Can-obi/Mobile%20Uploads/20170518_171710.jpg[/IMG][/URL]

I'm guessing the four ?brass pins may have something to do with it, but how to deal with the thing is beyond me at the moment so any help would be most appreciated.
toneless22/05/2017 16:04:04
avatar
9 forum posts

Hi.

I'm an owner of a Dore Westbury miller as well though I'm sorry to say not an experienced one -at least not yet-, so I can't answer your questions in detail.

It seems like yours is a MK1 model and I just had a look at the building instructions and the bushings are just referred to as "porous bronze bushes".

P.s May I suggest that you visit the yahoo dore westbury group where you can find plans and info on these versatile millers.

Brian Oldford22/05/2017 16:47:42
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685 forum posts
18 photos
Posted by toneless on 22/05/2017 16:04:04:. . . . . . ."porous bronze bushes".. . . . . .

Would sintered bronze bushes (oilite) be a suitable substitute?

Edited By Brian Oldford on 22/05/2017 16:48:16

Tony Pratt 122/05/2017 17:43:43
1269 forum posts
5 photos

I couldn't see the photos guess that's my fault, does one have to log into photo bucket? Anyway I made one of these beasts some 30 odd years ago, bushes were sintered bronze from memory, brass will not be any good, again from memory I think the gear[s] are held on by circlips.

Tony

toneless22/05/2017 18:15:49
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9 forum posts

Tony Pratt, here are the images in the order Canyon Wren posted them. You don't need a photobucket account, it was just the links that were not correctly inserted in the post.

Canobi22/05/2017 18:22:13
23 forum posts

My apologies, wasn't sure how to attach the pics (was using android mode which didn't help).

Thank you for the replies gents, sintered bronze it is then, and I shall definitely check out the the yahoo group.

Tony Pratt 122/05/2017 20:02:03
1269 forum posts
5 photos

Toneless,

Thanks, those pictures bring back happy memories of my build, actually nearer 40 years than 30, scary! I'm pretty sure they supplied the oilite bush [s] ready made & I had to degrease them to allow the Loctite to work.

Obviously oil fill again after fitting.

Tony

toneless23/05/2017 00:04:16
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9 forum posts

Canyon Wren, when you do repair your gearbox housing, please let us know. Also a couple photos of your DW would be nice.

Even though it now seems like a piece of machine history, it's still a very versatile and capable miller. Good luck having it up and running soon.

Canobi23/05/2017 00:33:16
23 forum posts

I'll be posting progress and no doubt asking more questions for sure.

As requested, Here is my DW (I hope I've got it right this time)

Canobi23/05/2017 00:41:57
23 forum posts

Damn! thought I had it then, hang on...

[IMG][URL=http://s1225.photobucket.com/user/Can-obi/media/Mobile%20Uploads/IMG_20170523_001719.jpg.html][IMG]http://i1225.photobucket.com/albums/ee395/Can-obi/Mobile%20Uploads/IMG_20170523_001719.jpg[/IMG][/IMG]

Edited By Canyon Wren on 23/05/2017 00:43:32

Canobi23/05/2017 00:47:02
23 forum posts
Posted by toneless on 22/05/2017 18:15:49:

Tony Pratt, here are the images in the order Canyon Wren posted them. You don't need a photobucket account, it was just the links that were not correctly inserted in the post.

 

I would love to know how you did that, can't seem to make it work my end.

Edited By Canyon Wren on 23/05/2017 00:49:53

toneless23/05/2017 00:53:44
avatar
9 forum posts

When you reply in a message, there is a palette of options on the top. You just have to choose the "image" icon, it's in the top row, third from the end. Insert the link and here you go...

P.s It looks to be a very nice Mark1 model... I love the handwheels, I dare to say, they look way better than the stock ones!

Canobi23/05/2017 01:08:24
23 forum posts

Yep, right icon but I should have been using a direct link which I'm not used to using.

Here she is from the other side

Canobi23/05/2017 01:29:00
23 forum posts

Not sure about old though, she's a whippersnapper next to my 1930s flat belt Grayson lathe ♡

Runout was an astonishing 1.4mm when I got her, managed to whittle it down to .1mm (.003 inch), Not bad for a total beginner and an old lathe.

Edited By Canyon Wren on 23/05/2017 01:29:55

Ian S C23/05/2017 12:48:26
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7468 forum posts
230 photos

Tony, it's best not to use Loctite on oilite bushes, the Loctite fills the space where the oil is supposed to be. The bushes are made slightly over size, and when they are pressed into the correct size hole the bore closes to the nominal size for the shaft, this is enough to retain the bush. If worse comes to worse, the interior of the bearing housing can be knurled to reduce the diameter, that's not always easy, or possible.

Ian S C

Canobi23/05/2017 13:05:56
23 forum posts

This is all great info guys, Thanks

I found a perfect oilite for the base which is 1" x 1.1/8" x 1" bore, but no 2" with the same ID/OD. There's one with a 1.1/4" so may get that one and skim it to size if I can't find an exact match.

Neil Wyatt23/05/2017 15:28:53
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Moderator
18316 forum posts
718 photos
77 articles

How to post pictures, (including Photo Bucket):

www.model-engineer.co.uk/forums/postings.asp?th=103028&p=2

Mike Crossfield23/05/2017 21:12:43
239 forum posts
34 photos

Canyon

When I rebuilt my DW some years ago I replaced all the oilite bushes, and I sourced correctly sized parts at very reasonable prices from Ashley Power in Poole. Website at www.ashleypower.co.uk. They don't seem to list imperial sizes in their online store, but you can order them by phone.or email.

Hth

Mike

Ian Skeldon 223/05/2017 22:10:35
489 forum posts
41 photos

Canyon can you let me have your contact details please, I have a Grayson and may want to ask some questions about it.

Thank you,

Ian

Canobi24/05/2017 00:08:15
23 forum posts
Posted by Mike Crossfield on 23/05/2017 21:12:43:

Canyon

When I rebuilt my DW some years ago I replaced all the oilite bushes, and I sourced correctly sized parts at very reasonable prices from Ashley Power in Poole. Website at www.ashleypower.co.uk. They don't seem to list imperial sizes in their online store, but you can order them by phone.or email.

Hth

Mike

That's awesome, thank you so much :D

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