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Alfisti-
Im trying to get my Duetto running right after a long
hibernation. Its been missing on two
cylinders and carbon fouling plugs 2 and 4.
Ive replaced cap, rotor, plug wires and plugs (many many plugs). Ive
checked, rechecked and checked again
the firing order and plug wire connections. Ive opened the tops of the
webers
and cleaned everything out and gone through the standard weber set up. Gas is
fresh. Compression is 180 across all four, which seems pretty good for
109,000 miles. The car will idle on cylinders
1 and 3 (I can pull the plug wires off 2 and 4 and there is no idle change at
all). Test driving the car seems to get
all four firing with plenty of power but when going back to idle, same
problem. I goose the throttle and the engine stumbles
badly, but I can get all four to kick in at speed (at least I think Ive got
all four hitting since it feels smooth and strong). Idling in the garage it
hits on two and the engine will not rev
easily. Distributor has been lubricated
and the timing light seems to show an advancing distributor. One thing I
noticed is the rotor points to
the back when Im at TDC on the compression stroke on Number 1 cyl. Cap and
plug wires are correct for that
being number 1, followed by 3-4-2 clockwise looking down at the distributor.
I seem to remember the rotor pointing
forward for No. 1 on at least one of the other Alfas Ive owned (and its
pointing forward in the diagram in the owners manual). Ill try running the
car for longer tomorrow
(with Italian tune up), but would love advice on what else to check. Also,
what is the plug gap for a 1600 when you replace the Lodge with a standard
gapped plug?
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