Abandoned_Trolley
2022-01-23 15:17:55 UTC
Gentlemen,
Does anyone know what the usual cause for an automatic choke coming
off too early is? I find cold starting easy enough and get a nice
smooth idle -but only for the first 30 seconds or so whereupon I can
'feel' (as it were) the choke gradually coming off and the engine
starts to go all lumpy until it warms up properly following me holding
it on fast idle for 5-6 minutes. The engine has SU carbs fitted as
standard if that makes any difference.
It could make a lot of difference. I have had a few different JaguarsDoes anyone know what the usual cause for an automatic choke coming
off too early is? I find cold starting easy enough and get a nice
smooth idle -but only for the first 30 seconds or so whereupon I can
'feel' (as it were) the choke gradually coming off and the engine
starts to go all lumpy until it warms up properly following me holding
it on fast idle for 5-6 minutes. The engine has SU carbs fitted as
standard if that makes any difference.
with SU carbs fitted, and an auto choke facility implemented by a thing
called an "AED" or Automatic Enrichment Device.
It's basically a small electric 3rd carb sitting between the 2 normal
ones, and when the motor is cold a solenoid operates to open it up and
let some extra rich juice in to the inlet manifold. As you may have
guessed, the solenoid is dependent on the temperature sensor.
If your car is fitted with anything like this then messing around with
the carbs is a dead end.
However, I have only ever heard of them shutting off too late rather
than too early.
Without further information any speculation is a bit pointless though
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