Lotus Elan

Stromberg throttle cable

PostPost by: lotusbc » Tue May 26, 2020 5:32 pm

I have an S4 with Strombergs that the po installed, they are the high balance pipe type. My question is how to secure the throttle cable at the carb end. The po had clamped a small bracket to the balance pipe with hose clamps. I'd like to do something better that looks 'right' . In the attached photo you can get an idea what I'm trying to improve.
elan8.jpg and
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PostPost by: 69S4 » Tue May 26, 2020 6:13 pm

It’s because you don’t have the Stromberg version cam cover. That one has a flat area machined about half way down the inlet side where the cable outer is located. The inner then continues down to the throttle spindle.
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PostPost by: Evante » Tue May 26, 2020 10:45 pm

Here is an elegant solution.
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PostPost by: Evante » Tue May 26, 2020 10:45 pm

One more.
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PostPost by: velo5338 » Wed May 27, 2020 5:13 pm

Here's the solution with the proper Stromberg cam cover.

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PostPost by: RogerFrench » Thu May 28, 2020 11:31 am

Evante wrote:One more.

These are the high-specification Strombergs. :-)
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PostPost by: 661 » Thu May 28, 2020 11:43 am

My solution

IMG_1120.JPG and
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PostPost by: lotusbc » Thu May 28, 2020 1:49 pm

The original plan was to drill a couple of holes and fit a simple bracket, but I'm hesitant. Is there a downside to drilling holes in the cam cover? In the correct cover are holes threaded or is the bracket affixed with bolts and nuts? The installations pictured look good. I'd have to replace the carb mounting bolts to fix anything as they are too short.
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PostPost by: 69S4 » Thu May 28, 2020 1:55 pm

The Stromberg cover is thicker in the area where the bracket sits and the screw holes are tapped into the metal. The Weber ones are too thin to do that so it would have to be a bracket fixed to the sealing bolts - like 661's - or similar using the manifold bolts. Doesn't look that difficult to do either though.
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PostPost by: oldelanman » Thu May 28, 2020 2:54 pm

The threads are tapped into blind bosses cast into the cover.

Accelerator cable bracket bosses 002.jpg and


A good many engines have been converted from Stromberg to Weber heads over the years .. maybe somebody has a Stromberg cam cover they would swap with your Weber one ? Try posting in the Wanted section on here.
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PostPost by: Evante » Thu May 28, 2020 10:26 pm

He is a throttle cable bracket that I build myself. It was a first try, and after I am done with some other fixes, I will go back and make another that looks a little more elegant. It was done with aluminum stock, aluminum weld, and a propane torch. Here is a link for low temperature aluminum welding: https://www.youtube.com/watch?v=jtvOkI_pvMI
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