you can check out Paul hunt's site as well as mine for
all the dizzy curves. I have the vac advance curves listed as well
for the bulk of the dist. models MG used.
http://www.teglerizer.com/mgstuff/advance_curves.htm
the bottom of the page has a footnote on how to read the vac numbers.
(Vacuum spec numbers = start.end.total
IE: 10.15.5 would start advancing at 10 Hg of vacuum, max adv. would be
reached at 15 Hg ...for a total change of 5 degrees. 5 distributor
degrees = 10 crankshaft degrees
Paul Tegler wizardz@toad.net http://www.teglerizer.com
----- Original Message -----
From: "A D" <mooshupork7@hotmail.com>
To: <mgs@autox.team.net>
Sent: Wednesday, August 23, 2000 9:29 AM
Subject: Vacuum Advances and M&G
Does anybody know if there are any differences between new vacuum advance
units and the originals, as it relates to timing characteristics? I'm
setting out to refurbish a DM2.P4 distributer for my MGA and have 2 or 3, 40
year old OEM vacuum advances, but I don't know if they are still good or
what their life expectancy is.
M&G advertises that they refurbish original vacuum advances, albeit for $50+
(more than the price of a new replacement). But what are the timing
differences between new and old?
I have never heard of anybody performing the service of refurbishing vacuum
advances besides M&G. Makes me wonder...
I asked a local MGer last week about M&G, I was told, simply, that after
shaking hands with them, you leave with 4 fingers. I guess becasuse they
are located close enough to New York City, a big captive market, they can
afford to conduct business in any way they choose to.
Art D.
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