...sorry... a bunch of old mail never went out....
so here they are...
I think you're mixing problems/symptoms which is what's making it
hard to understand.
---- best guesstimate....
The firing sounds simply like your timing is way off, or your cam
timing may have 'jumped' (slipped a tooth on the timing chain)
--or-- simple fuel starvation IE: a clogged fuel filter or bad pump,or clogged
pickup.
--or-- the condenser with your points has failed (shorted out limiting max
power to the coil). If the condensor across the points has shorted,
or has a low impedance short, it wouldn't allow the coil to charge rapidly
enough to fire
the sparkplugs at higher revs and would also put a '100% duty cycle' of voltage
across the coil.
Paul Tegler ptegler@gouldfo.com www.teglerizer.com
----- Original Message -----
From: <Ar164super@wmconnect.com>
To: <spitfires-digest@autox.team.net>
Sent: Wednesday, October 03, 2001 2:26 AM
Subject: Strange Spitfire Problem
Hi All,
I've been hesitating to send this question because the symptoms are so
weird...it was too hard to explain. But now I'm ready to explain. I figure
that some of this relates to recent fuel/ignition issues that have been
discussed here, but the problem is taken to a new level. So here I go...but
first, some history.
About a month and a half back, my '70 Spitfire Mk3 (1296, Stromberg CD150,
stock ignition with Lucas Sport Coil) suffered a dash wiring fire. The wire
from the ignition switch to the coil burned up. I took apart the wiring
harness, replaced the offending wire, and inspected and repaired any other
affected wires. In addition, I wired in a 30-amp fuse in the wire between the
coil and the ignition switch. I also replaced the main battery negative
cable, as the original had been separating from the terminal. The replacement
cable was insulated, and I did not strip the insulation where the original
cable passed through the grounds connected to the starter solenoid.
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