Lotus Elan

Webber carburetors

PostPost by: Craven » Fri Sep 08, 2023 3:11 pm

This is a throttle plate from a 31 fitment on a Lotus, the hole was drilled as a cheap fix for the over rich idle. Apparently worked OK with a new engine but once that had a few miles on it pretty much worthless.
P1020911.JPG and
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PostPost by: elans3 » Mon Sep 11, 2023 9:36 am

Holes get drilled in throttle plates for different reasons, including balancing one carb bore against the other in the same carb, particularly on pre-151 &152 type carbs without the auxiliary air screw.
Not seen so much now, in the past it was used by many to obtain a decent idle when a throttle shaft was twisted, and the last bit of "twist" couldn't be eradicated.
Current :- Elan S3 DHC SE S/S 1968,
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Previous :-
Elan S3 DHC SE SS 1968,
Elan S3 DHC S/E 1966
Elan S3 FHC Pre-Airflow 1966
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