front hub re-build question

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front hub re-build question

Post  mickey c on Tue Mar 24, 2015 3:48 am

Hi
can I just check I am doing this right, having never built a vega before please.
I am rebuilding the front hub and in the hub I've put a new bearing, then circlip then the oil seal and fitted the smaller spacer. Does a washer go this ? if so, should it be a washer the same size or bigger than the oil seal or will a smaller washer do? Then is it a half size nut?

Then do I fit the spindle, the long spacer and then knock the 2nd bearing over this? do I knock it until it rests on the spacer? then is the middle sized spacer ? should there be another oil seal on this side? I've not fitted one. Then is the back plate held in place by a washer and half nut?

I've tried this but the cant get the hub to seal / close! What am I doing wrong please?


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Re: front hub re-build question

Post  mickey c on Thu Mar 26, 2015 3:51 am

Hi again
I've spent another couple of nights on this front hub and am still stumped.  I did note the thread on the spindle is longer 1 side than the other so tried fitting it both ways.  I spent ages getting the brake shoes but then couldn't even get the shoes into the hub, which looks like I will have to remove the protection plates from the shoes.
However even with no shoes in the back plate, I cannot get the hub to close, see picture 2, is this correct to have 5 - 10 mm gap?



any suggestions are greatly appreciated.

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Re: front hub re-build question

Post  Snails on Thu Mar 26, 2015 4:59 am

Are you sure you have the right shoes for the hub you are using?

Picture 2 - It does not look right to me

Picture 3 - Its the spacer sticking out of the seal that is preventing your two halves from sitting properly together if you ask me.

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Re: front hub re-build question

Post  mickey c on Thu Mar 26, 2015 7:54 am

thanks Ed
good call re. brake shoes but just checked my order from Rimini and I did order front brake shoes, although it doesn't say on the box which ones they are. anyone know a part number or how to tell difference between front and back brake shoes - I'm using a sunny rear hub and so can't compare.

that spacer does stick out so will try without it to see if the hub closes.

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Re: front hub re-build question

Post  daz.h on Thu Mar 26, 2015 3:46 pm

longest threaded side of the spindle exits on the opposite side to where the brake arm goes.
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Re: front hub re-build question

Post  mickey c on Thu Mar 26, 2015 5:02 pm

Thanks Daz
That's 1 question answered! I swapped the spacers round and now the hub closes and spins nicely - yea!
But the spacer now protrudes approx 5 mm proud of the oli seal on the hub! Should it do that. I'd do quite a lot for sticky or someone to do a luna line equivalent !

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Re: front hub re-build question

Post  Snails on Fri Mar 27, 2015 8:50 am

Yeah it should stick out a bit otherwise it would not be a spacer and the two halves would bind together when tightened yeah?
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Re: front hub re-build question

Post  wack 63 on Fri Mar 27, 2015 2:12 pm

You need the spacer to stick out on the hub side as the speedo drive goes on then the half nut .With no spacer the speedo drive would be trapped and not turn.Have you painted/coated the lining on the inside of the hub as it looks the same ?

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Re: front hub re-build question

Post  mickey c on Sat Mar 28, 2015 3:49 am

Thanks all, I think I'm getting there thanks to this assistance, hub now closes without shoes, so will sand powder coating of & cross my fingers!
Also does anyone have a suggestion for suitable alternative brake shoe spring? Mine didn't come with any? Will small frame vespa or similar do the job please?

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Re: front hub re-build question

Post  mickey c on Tue Apr 07, 2015 12:37 pm

Well I got there at last hub closes with shoes on but even after sanding the hub I needed to grind 1 mm of the end if each shoe (where they slot into the pivot!)
Still need a spring to operate the shoes, can anyone point me in the right / suitable direction please?
Thanks again for all the earlier help
Mike

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Re: front hub re-build question

Post  Snails on Tue Apr 07, 2015 3:04 pm

A series 3 one wont fit? I will have one knocking around if you need to borrow one to check

Should also have a small frame vespa one also
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Re: front hub re-build question

Post  mickey c on Wed Apr 08, 2015 7:57 am

Cheers Ed, I can't see a S3 spring fitting as these have 2 pivots not 1, so would guess the spring will be too slack.

If I could try the vespa 1 please? If it looks good, I'll buy 1. Still can't believe 1 doesn't come with the shoes & no one seams to sell them.

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Re: front hub re-build question

Post  Snails on Wed Apr 08, 2015 8:40 am

mickey c wrote:Still can't believe 1 doesn't come with the shoes & no one seams to sell them.

Don't worry you will get used to it. Shocked Very Happy
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Re: front hub re-build question

Post  daz.h on Thu Apr 09, 2015 4:35 am

try a spring from the j range, scooter restorations sell them, £1.50
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Re: front hub re-build question

Post  mickey c on Thu Apr 09, 2015 1:06 pm

Thanks very much, just what I needed to know! £1.50 for the spring! I can stretch to that! Embarassed
I'll get my coat!

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Re: front hub re-build question

Post  daz.h on Thu Apr 09, 2015 3:21 pm

I'm recoiling with that joke
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Re: front hub re-build question

Post  mickey c on Fri Apr 10, 2015 10:18 am

Touché!

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