Lotus Elan

40 DCOE/28-36DCD throttle-spindle-to-disc screws

PostPost by: promotor » Mon Nov 11, 2013 4:14 pm

I need to replace these and can't find any anywhere!

Can anyone point me in the right direction please?

I need them currently for a 28/36 DCD but will later need them for 40 DCOE - I believe they're the same or is that just an illusion? :)

Cheers
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PostPost by: types26/36 » Mon Nov 11, 2013 4:43 pm

I saw these on the OZ ebay but dont know if they would fit a 40DCOE.
http://www.ebay.co.uk/itm/330638620659? ... 1438.l2649
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PostPost by: lotusfan » Mon Nov 11, 2013 5:18 pm

Promotor

Have a look at these

http://www.dellorto.co.uk/merchandise/p ... ctionID=57

These people can probably help you out with the 28-36DCD as well.
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PostPost by: rviani » Mon Nov 11, 2013 6:07 pm

I bought some from Dave Bean a year or so ago.
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PostPost by: Esprit2 » Mon Nov 11, 2013 7:13 pm

IMHO, Eurocarb Ltd in the UK (Matthew Cooper) is the best source for Weber and Dellorto parts.
[email protected] e-mail
http://www.dellorto.co.uk/ Website
https://www.facebook.com/eurocarb Facebook
+44 (0) 118 943 1180 Phone
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In North America, contact:

Weber North America
http://www.webernorthamerica.com/
Worldpac (wholesale distributor for shops) owns Weber North America, so if your shop mechanic has a Worldpac account , he can buy Weber parts on his regular account.

Redline Weber
http://www.redlineweber.com/

Pierce Manifolds
http://www.piercemanifolds.com/

Carbs Unlimited
http://www.carburetion.com/

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PostPost by: Galwaylotus » Tue Nov 12, 2013 3:25 pm

Mechanical Engineer, happily retired!

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PostPost by: promotor » Wed Nov 13, 2013 7:43 am

Thanks to everyone for your replies - there's certainly a few places to go to there.

I notice that some of the butterfly screws available in the links posted above aren't like the original screws that are made from brass and need to be peened over - they need Loctite to hold them in. I'm not comfortable with the idea that those screws could work loose and get sucked into the engine!

Is there fuel resistant Loctite available?
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PostPost by: Esprit2 » Wed Nov 13, 2013 4:36 pm

Loctite 242 (Blue) is fuel tolerant.

Note that in tech-speak there's a difference between fuel proof, fuel resistant, fuel tolerant, etc. I can't define them with specifics. If you're not satisfied, then I suggest you contact Loctite... they have a customer service / tech service department. In the USA, call (800) 624-7767.

http://www.loctiteproducts.com/

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PostPost by: promotor » Wed Nov 13, 2013 8:17 pm

Seems I've opened a can o' worms!

Thanks for the help though Tim - much appreciated.
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PostPost by: Esprit2 » Wed Nov 13, 2013 8:53 pm

It's not a can of worms, just a detail to work out. And I don't have a clear answer for you.

First, I'd call Weber North America and ask them about the suitability of the screws for use in their vintage carbs. If it's a Weber part, they should know. If it's an aftermarket part, you might consider buying the OEM part just to put your concerns to rest. WNA can help you with that as well.

Second, I'd call Loctite to inquire about the fuel resistance of Threadlockers and Retaining Compounds. I'd be a little concerned about the risk of bending or damaging the throttle shaft while staking any screw, and the idea of satisfying the security need with a drop of Loctite sounds like a good way to go... as long as it's fuel resistant.

In either case, let us know what you find.

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