Lotus Elan

Stromberg Connecting Linkage

PostPost by: JGeezer » Wed Jan 29, 2014 2:25 pm

I am putting together a car out of boxes or parts, and have two CD25's assembled from a number of parts doners and cleaned up pretty well (untested so far). Now it's time to actually assemble them on a federal manifold, and I've ended up with this odd situation:

IMG_1534s.jpg and


I do have one somewhat longer (maybe 3/4") throttle spindle shown lying in front that I assume should be swapped into the rear.

Could someone post a good, really clear picture of what the intermediate linkage and couplings look like, so I can figure out what I need? Remember I do not have a proper model to work from, and I find the parts diagrams confusing.

Thanks.
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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PostPost by: RogerFrench » Wed Jan 29, 2014 5:31 pm

IMG-20131017-00114.jpg and
These photos are of my Europa TC, but give you the idea.
Yes, you need the longer throttle spindle.
To do it the way Lotus and others did it you'll also need 2 linkage clips, which are like flat springs bent into a zig-zag form and which allow a bit of relative movement between the carbs, though not relative rotation of the throttle spindles. I don't have a clear picture of them, sorry, but you can see them in the photographs.
You also need a short bit of spindle-sized rod with an attached short lever to which the throttle cable is attached. In the Lotus setup the lever is not fixed, but is so arranged that the spindles can rotate a little to allow the choke to open the throttles a little for cold starting.
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PostPost by: RogerFrench » Wed Jan 29, 2014 5:43 pm

1967 Elan S3
1972 Europa Twin Cam
2005 Elise
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PostPost by: Craven » Wed Jan 29, 2014 8:13 pm

Hi,
This pic may help, 23mm long, 15mm x 18mm.
Ron.
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PostPost by: JGeezer » Wed Jan 29, 2014 8:34 pm

Thanks, guys, I understand now. I found a picture of an 074L6068 assembly in the Dave Bean catalog (page L26) that has the pair of clips along with the other bits needed. I guess I just have to cut down a spare throttle shaft for the intermediate link, and I'll be set.
J Geezer
2004 Cadillac CTS-V
2003 Corvette Coupe
1969 Elan+2 Federal
(Past MGA, MGB, TR6, AH 3000 BJ8, XR4ti, BMW E39 540i/6, Lola T644 ... )
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JGeezer
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