Lotus Elan

Weber Spindle Seals

PostPost by: KevJ+2 » Mon Feb 16, 2015 11:35 am

Hello all,
I refurbished my webers a while ago and renewed the spindle seals (leather) at the same time.
I noticed both carbs were more sluggish to close after fitting these and wonder if this is normal. Will the main return spring bring things back quicker?
I don't think I have over tightened the spindle retaining nuts, in fact when I slacken them right off, the slow return is the same. Can you put too much grease in?
Maybe it's normal, just need to know before I replace the carbs.
Thanks,
Kev.
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PostPost by: types26/36 » Mon Feb 16, 2015 11:57 am

[quote="KevJ+2"
Maybe it's normal, just need to know before I replace the carbs.Kev.[/quote]

Well before you replace the carbs would it be an option to replace the bearings with the modern sealed pre greased type...........unless you REALLY want originality :lol:
http://www.ebay.co.uk/itm/151529983129? ... 1436.l2661
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PostPost by: KevJ+2 » Mon Feb 16, 2015 12:31 pm

types26/36 wrote:Well before you replace the carbs would it be an option to replace the bearings with the modern sealed pre greased type...........unless you REALLY want originality


In answer to this, I had no movement on the original bearings and it seemed a lot easier to fit 4 leather washers etc. than change the bearings.
It's not a case of originality, just an easier fix.
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PostPost by: Chancer » Mon Feb 16, 2015 1:09 pm

Did you soak the leather seals in o?l for a week before fitting?
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PostPost by: KevJ+2 » Mon Feb 16, 2015 1:28 pm

Chancer wrote:Did you soak the leather seals in o?l for a week before fitting?


No - I looked up various opinions on this before fitting, using motor bike oil etc. and them rotting etc. I chose to let them absorb the grease (now for a couple of months).
The throttle shafts aren't stiff, just slower to return.
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PostPost by: Chancer » Mon Feb 16, 2015 3:39 pm

Its been 30 years since I changed some, I'm pleased that they are still available, I have a dim recollection of a similar problem which I cured by softening them with whatever I had to hand in those days.

Were it now I would choose something kind to leather like Lanolin, as you get older and have to put right or do again jobs you did in your youth you get wiser :D
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PostPost by: oldchieft » Mon Feb 16, 2015 4:53 pm

Just a question, are the current seals real leather?

I seem to recall the ones I was supplied were vinyl leather.

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PostPost by: KevJ+2 » Mon Feb 16, 2015 5:08 pm

oldchieft wrote:Just a question, are the current seals real leather?


Mmmm, well they looked like real leather, they smelt like real leather and they felt like real leather but maybe they came from a Chinese cow - so could have been anything :?
They had a black sheen finish on one side and natural 'hide' finish on the other and were supposedly genuine Weber parts.
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PostPost by: RichardHawkins » Tue Feb 17, 2015 1:37 pm

There is a group called sidedraft central run by an American gentleman called Keith Franck.

Keith is very knowledgable, and has discussed this topic. I think he recommends something really obscure like mink oil. I expect Keith could help.

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PostPost by: KevJ+2 » Wed Feb 18, 2015 5:27 pm

I thought I should let you know how I got on.
I removed the leather seals from the carbs and after inspecting them, it was my conclusion that the holes were far too small. They were grabbing the spindle, and the flattened part of the thread (to take the lock tab) was giving the seal a 'key' to try and turn the whole seal. This obviously produced drag on the seals.
The only answer (other than fitting new sealed bearings) was to work them for a while in oil, then open up the holes in the leather to fit snugly on the spindle whilst trying to maintain free movement.
The leather seals are a bit of a crap idea really and I'm surprised that over 40 years later, a better material has not been found.
Thanks for all your replies,
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PostPost by: oldchieft » Wed Feb 18, 2015 6:37 pm

KevJ+2 wrote:The leather seals are a bit of a crap idea really and I'm surprised that over 40 years later, a better material has not been found.


There is, it's called sealed bearings.

I used sealed bearings and seals, the seals were a tight fit.

If I could not of got them free enough I have binned them and relied on the sealed bearings.

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PostPost by: batfish » Mon Apr 13, 2015 9:26 am

I have the same problem on a set of webber 45s I rebuilt the butterflies are not closing fully. I just spoke to Eurocarb who supply all the replacement parts for Webber and Dellorto carbs and they confirmed that with the sealed spindle bearings they supply the leather seal is not required.

regards

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