Lotus Elan

Weber synchronisation problems.

PostPost by: Craven » Mon May 13, 2019 7:36 pm

If Lotus fitment the throttle plates will have small ~ 1mm hole drilled in the lower half.
I gave up on 31’s years ago, the progression is way too advanced for a Twincam.
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PostPost by: G4ILN » Mon May 13, 2019 8:29 pm

I was able to extract the brass covers with the aid of a pair of 90 degree circlip pliers, They're in a fit state to be reused.

Two of the leather washers were still soft, supple and wet with oil. The other two were hard and dry, but not hard enough to snap. If I don't have any new ones in my spares box I may well make my own. I notice that in illustrations the washers are bell shaped, as indeed mine are, whereas replacement items appear to be flat. Do they assume a bell shape in service?

The bearings are in good shape. I flushed them out with WD40 and will regrease them, which should help with the sealing.

Given the limited amount of use this car sees, I cannot justify the cost of replacement carbs or even new bearings with integral seals.

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PostPost by: Grizzly » Sat May 18, 2019 5:01 pm

Did you check the vacuum over a few rpm's? (1000,2000 and 3000 for example)
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