Just an update to my query... With a little help, I now realize where the Thermal Vacuum Switch exactly was. Will require me to remove the air induction / fuel distributor assembly to complete the vacuum hose renewal. Saving this for the end of the driving season, since I have my D running pretty good right now. I plan on doing a little TLC "while I am in there"... clean up the valley of death, replace the Thermal Vacuum Switch, who knows maybe even renew the fuel lines from the distributor with those nifty stainless braided ones... Regards, Wayne / VIN#2447 www.AA9DY.com Wayne Wagner wrote: >After seeing the state of some of the vacuum hoses when trying to hunt >down a vacuum leak, I decided it was time to replace them. > >Got around to changing most of the hoses today with the kit from >SpecialTauto, and when I got to the Tee that joins the constant pressure >regulator to the Thermal Vacuum Switch..... I find another Tee further >along the path! > >I don't know why the system was mis-"hosed" the way I found it. What I >see is a vacuum hose from manifold to a Tee that supplies vacuum to the >Vacuum Advance solenoid switch and the pressure regulator. >Apparently the Thermal Vacuum Switch is totally bypassed, and I am not >sure how deep I am supposed to dig to see it. I have an idea where it >supposed to approximately be from the manual, but I still cannot see >it. Any tips? > >Also, are there any negative aspects to running vacuum to the fuel >pressure regulator all the time? From what I understand... the Thermal >Vacuum Switch should cut out vacuum to the pressure regulator when the >engine is above +40C. > > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/