Shannon---24 deg. of centrifugal advance is about the right amount. By
setting the idle timing, (where no advance should be taking place) to 10
deg., you'll then have 34 deg. when the timing is all-in.
I'm not sure what controls maximum timing on the Mallory. If it's a stop
post like on the Lucas, then a change of advance springs may not alter
the total.
If you feel you want more total timing, and can get away with it, you
can set the initial timing up to 12 or 14 deg.
Vance is correct about checking the operation of the retard capsules on
the Lucas. I always recommend starting the timing process with this
feature DISconnected, and then see what you get with it reconnected. A
moot point with your new setup.
Dick
Vance) Cc: tr6taylor@webtv.net (Sally or Dick Taylor),
6pack@autox.team.net Subject: Re: WooHoo! Mallory....
Vance,
That's the reason I was asking to begin with.. the Mallory Uniltie
doesn't have a vacuum retard... or advance for that matter. It's all
centrifugal.
The dizzy maxes out at 24 degrees at around 3100rpm. If I need to change
it I'll have to get new springs.
-Shannon
On 8/26/05, Navarrette, Vance <vance.navarrette@intel.com> wrote:
Dick, Shannon:
I would add one caveat
to all of this -
Make sure that the vacuum
retard is actually working when you set the timing. Most of the vacuum
capsules long ago ceased to function, as the innards dry out and toss
their cookies.
This is why I have taken to
telling people "Set the timing to 10BTDC with the retard disconnected,
THEN reconnect the retard". This is because if the retard capsule is
dead, you still end up with the correct baseline timing.
Cheers,
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Sally or Dick Taylor
Sent: August 25, 2005 11:29 PM
To: 6pack@autox.team.net
Subject: Re: WooHoo! Mallory....
Shannon---The vacuum retard unit should retard the ignition timing
between 14 and 16 deg. when it's working as designed. If you set the
timing to 10 deg. BTDC with the vacuum line DISconnected, and then
connect it, you should see the timing retard to 4 deg. ATDC This is at
idle speed only. (Below 900 rpm) No retard should take place when the
throttle plate is opened and this particular port source of vacuum
"disappears".
Dick
Shannon wrote:
....Now a question. With my old dizzy, with the vacuum retard on, I had
it timed at 8 degrees BTDC. Does anyone know how much the vacuum retard
retards the timing at idle?
I'd like to thank everyone for their advice! -Shannon
72 TR6
|