Subject: | [Healeys] Which electronic ignition? |
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From: | ah at jharper.demon.co.uk (John Harper) |
Date: | Mon, 16 Apr 2012 16:46:13 +0100 |
References: | <CAAh8etn4b=bRu7CWSp0vC+vu1x_xgZJrJi4jFGa+GyzT6UE-0g@mail.gmail.com> <1AACD474-0253-4654-AFB2-5E609A3281EE@gmail.com> |
Just a query. I read in many documents in the past that the vacuum advance in an original distributor, advanced the spark on light throttle so as to compensate for the slower combustion burn with weak mixture. Without it higher fuel consumption whilst cruising is likely. I have experienced this myself when a vacuum unit has failed when the diaphragm is punctured. Some of the options listed in previous e-mails do not have any method of measuring the vacuum from the carburettor so I have to assume that these are less fuel efficient on long, steady speed journeys. Any comments please Regards -- John Harper |
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