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
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