I've never heard it described as an emissions reducer before. It is not
compulsory (mine doesn't do it) and is usually caused by the crankshaft
thrust-washers having worn, allowing the pressure from the clutch to push
the crankshaft forward in the engine, so taking the con-rods out of vertical
wrt the crankshaft. This causes more friction in the big-ends hence
reducing the idle. If you pump the clutch up and down while the engine is
running an assistant may well be able to see the crankshaft pulley moving
fore and aft.
PaulH.
-----Original Message-----
From: Tab Julius <tab@penworks.com>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: 19 October 1999 04:48
Subject: Bypass clutched idle reducer?
>
>On my (new!) '78 B, it has one of those "features" that reduces the idle
>speed when the clutch is depressed, ostensibly to reduce idle emissions (by
>reducing idle) while you're sitting with the clutch in at the intersection.
>
>Of course, sitting with your foot on the clutch for minutes on end is not
>desirable for other reasons, but the fact remains that the car reduces idle
>speed while clutched, if only for a second.
>
>In lesser weather, this is not a good thing (stalling ensues). Is it
>appropriate and/or easy to bypass this "feature"? If so, how?
>
>- Tab
>
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