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<div><span style="font-family: arial, helvetica, sans-serif; font-size: 10pt; color: #000000; background-color: #ffffff;">I remember buying a 1972 Chevy. For pollution purposes the vacuum advance line was blocked off by a solenoid . It was a 3 speed manual and the solenoid would only open and allow vac. advance in 3rd gear. Of course it was simple to by-pass:-)</span></div>
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In a message dated 11/6/2017 2:05:29 AM Eastern Standard Time, tigers@autox.team.net writes:
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<p>Well I did say I was probably wrong.</p>
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<p>Steve</p>
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<div id="divRplyFwdMsg" dir="ltr"><span style="font-size: 11pt; color: #000000; font-family: Calibri, sans-serif;"><strong>From:</strong> Gary Winblad <<a href="mailto:garywinblad@comcast.net">garywinblad@comcast.net</a>><br /> <strong>Sent:</strong> Sunday, November 5, 2017 11:13 AM<br /> <strong>To:</strong> steve wick; Tom Witt; <a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a><br /> <strong>Subject:</strong> Re: [Tigers] Timing</span>
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<div class="PlainText">Nooo.. cars had vacuum advance way before anyone gave a rat's a$$ about <br /> emissions...<br /> Emissions brought on the vacuum retard... two hoses to opposite sides of <br /> the diaphram.<br /> Gary<br /> <br /> <br /> On 11/4/2017 10:28 PM, steve wick via Tigers wrote:<br /> ><br /> ><br /> > I'm probably wrong, but I think vacuum advance was for emissions, not <br /> > gas mileage.<br /> ><br /> > Steve<br /> ><br /> > ------------------------------------------------------------------------<br /> > *From:* Tigers <tigers-<a href="mailto:bounces@autox.team.net">bounces@autox.team.net</a>> on behalf of Tom Witt <br /> > via Tigers <<a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a>><br /> > *Sent:* Saturday, November 4, 2017 5:51 PM<br /> > *To:* <a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a><br /> > *Subject:* Re: [Tigers] Timing<br /> > Thanks for the pictures Ron. The second type seems to use not only the<br /> > springs, but the cam action on the weights edge as a means of plotting <br /> > the<br /> > advance curve. The math for the RPM, spring tension, weight... - AND cam<br /> > action baffles my brain. Somewhere I have a Mallory dual point (no <br /> > vacuum<br /> > advance) distributor. Got it in a pile of "free" stuff at a Mopar <br /> > swapmeet<br /> > (No step child parts for him!). I'll have to check it's advance <br /> > system out<br /> > some time.<br /> ><br /> > Oddly I had a Volvo 544 that got 36 MPG on the highway and it only had a<br /> > mechanical advance (no vacuum). Seems to defy the necessity of vacuum<br /> > advance with mileage like that.<br /> ><br /> > -----Original Message-----<br /> > From: Ron Fraser via Tigers<br /> > Sent: Saturday, November 04, 2017 12:16 PM<br /> > To: 'Gary Winblad' ; <a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a><br /> > Subject: Re: [Tigers] Timing<br /> ><br /> > Picture 1 is the early style Ford distributor with oil port, ID# C2OF-J -<br /> > note there is 1 slot size for each weight - this is the area that I have<br /> > seen wear problems<br /> ><br /> > Picture 2 is the later style Ford distributor, ID# C8AF-E - note the <br /> > 13L &<br /> > 18L slots - the 13L slot is being used in this example<br /> ><br /> > Just wanted to show the differences in these 2 mechanical advance systems<br /> ><br /> > Ron Fraser<br /> ><br /> > -----Original Message-----<br /> > From: Tigers [<a href="mailto:tigers-bounces@autox.team.net" target="_blank" rel="noopener noreferrer">mailto:tigers-bounces@autox.team.net</a>] On Behalf Of Gary<br /> > Winblad via Tigers<br /> > Sent: Friday, November 03, 2017 10:58 AM<br /> > To: Smit, Theo <<a href="mailto:Theo.Smit@garmin.com">Theo.Smit@garmin.com</a>>; Tom Witt <<a href="mailto:atwittsend@verizon.net">atwittsend@verizon.net</a>>;<br /> > <a href="mailto:tigers@Autox.Team.Net">tigers@Autox.Team.Net</a><br /> > Subject: Re: [Tigers] Timing<br /> ><br /> > The Tiger distributor I bought from Sunbeam Specialties(was years ago) <br /> > was<br /> > the kind with the two position advance limit. I just had to turn it <br /> > to the<br /> > more limited stop, put in lighter speed shop springs and then limit the<br /> > vacuum advance. All on my stock 260, works great, still on regular gas.<br /> > Gary<br /> ><br /> ><br /> > ---<br /> > This email has been checked for viruses by Avast antivirus software.<br /> > <a href="https://www.avast.com/antivirus" target="_blank" rel="noopener noreferrer">https://www.avast.com/antivirus</a><br /> ><br /> > _______________________________________________<br /> ><br /> > <a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a><br /> ><br /> > Donate: <a href="http://www.team.net/donate.html" target="_blank" rel="noopener noreferrer">http://www.team.net/donate.html</a><br /> > Archive: <a href="http://www.team.net/archive" target="_blank" rel="noopener noreferrer">http://www.team.net/archive</a><br /> > Forums: <a href="http://www.team.net/forums" target="_blank" rel="noopener noreferrer">http://www.team.net/forums</a><br /> > Unsubscribe: <br /> > <a href="http://autox.team.net/mailman/options/tigers/srwick@hotmail.com" target="_blank" rel="noopener noreferrer">http://autox.team.net/mailman/options/tigers/srwick@hotmail.com</a><br /> ><br /> ><br /> ><br /> ><br /> > _______________________________________________<br /> ><br /> > <a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a><br /> ><br /> > Donate: <a href="http://www.team.net/donate.html" target="_blank" rel="noopener noreferrer">http://www.team.net/donate.html</a><br /> > Archive: <a href="http://www.team.net/archive" target="_blank" rel="noopener noreferrer">http://www.team.net/archive</a><br /> > Forums: <a href="http://www.team.net/forums" target="_blank" rel="noopener noreferrer">http://www.team.net/forums</a><br /> > Unsubscribe: <a href="http://autox.team.net/mailman/options/tigers/garywinblad@comcast.net" target="_blank" rel="noopener noreferrer"> http://autox.team.net/mailman/options/tigers/garywinblad@comcast.net</a><br /> ><br /> ><br /> </div>
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