looks like there are at least 3 ways to install these things; in the block, on the radiator or in the upper radiator hose (mine was sent from the dealer with a tube connector that fit in the hose); anyhow it hasn't been hot enough to test but at least all the vacuum hoses are hooked up correctly..any chronometers over there in Huntsville? also getting a little brake fluid leaking out the top of the master cylinder when its hot..not a whole lot but its a nuisance..will replacing the cover gasket work? mark blitman '74 imp ----- Original Message ----- From: "KerryPinkerton" <pinkertonk@xxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Tuesday, May 21, 2002 2:55 PM Subject: Re: IML: Thermal Ignition Control Valves (TIC Valves) > I bypassed mine with no ill effects on my 73. Could > not find an easy way to test it short of removing it > and putting it in boiling water. > > Kerryp > --- Mark Blitman <markblitman@xxxxxxxxxxxxx> wrote: > > hi gang: > > > > can someone advise me on the merits,if any, of > > replacing this valve? this valve applies manifold > > vacuum to the vacuum advance unit of the distributor > > in order to increase engine idle speed and engine > > cooling when coolant temp.reaches above 225 > > degrees.Below 225 degrees it doesn't work. > > > > It has 3 vacuum ports on the valve; one to manifold > > vacuum source, one to top of OSAC valve and one to > > vacuum advance on distributor. On mine, the top port > > is missing so it probably doesn't work right and to > > further complicate things it is routed thru the OSAC > > valve so if one is not working then probably both > > are not working right. > > > > I routed vacuum hoses on OSAC correctly and bypassed > > TIC valve and car is running beautifully; therefore > > my question is do i really need this TIC valve..i > > mean if coolant temp starts to rise while stuck in > > traffic can i get the same results from putting it > > in neutral and stepping on the gas to increase > > engine speed? > > > > i guess i am afraid to take off the old valve(hard > > to get to) but i will take it to a pro if need > > be...any help would be appreciated..thanks! > > > > mark blitman > > '74 imp > > > > > __________________________________________________ > Do You Yahoo!? > LAUNCH - Your Yahoo! Music Experience > http://launch.yahoo.com > >