Smog needed in California - need a part!

R

Richard

Member
I am in need of some help. Trying to get my 79 Traveler smogged and have an issue. My Traveler is a 79, 345, Carter TQ, 727 TF, A/C, Tilt, P/S, Cruise, etc. I've swapped out plugs, rotor, disto cap, fule filter, air filter, etc. It runs just fine, however; my smog man (being the honest guy that he is) tried to get my 79 to come up to smog #'s. He will do this for me BEFORE he actually does the smogging on his machine, just so that I know whether or not to continue with the smogging. Everything works just fine until I get to 1500 RPM's, and then the #'s go a bit haywire on the smog machine. He is telling me that since the EGR is not getting any vacuum, it is not opening up to complete the function it was meant to do.

This is the issue: the low-temp vacuum control valve that screws into the radiator, I don't have. My EGR valve vacuum runs off the vacuum from the manifold low-temp vacuum control valve to the radiator. The vacuum line is plugged ( my doing), however; the EGR valve is not getting any vacuum to regulate the emissions.

Question 1: is the valve that screws into the radiator the same as the low temp vacuum control valve on the intake manifold?
Question 2: is this vacuum (egr, radiator, vacuum control valve) manifold vacuum or "ported" vacuum? I am guessing ported based on the diagram.

If the vacuum valve on the radiator is not the same as the one on the intake manifold, is there a "workaround" where I can hook up the vacuum line that went to the radiator somewhere else?


79 Engine Vacuum lines.jpg
 
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Wellllllllllllllllllllllllllllllllllllllllllllllllllllllllllll -

I got the damn pig smogged today! Ordered a new EGR from IHParts, installed with the smallest washer (1/8" opening), installed 4 vacuum line reducers from carb to low temp switch at the radiator, from radiator to low temp switch on intake, from low temp switch on the intake to EGR. The rest of the smog crap (smog pump, runner tubes to smog pump, charcoal canister, cat converter) are all intact. The timing was at 10 degrees (the factory is at 0 degrees, but the IHC letter and sticker allow for 7 1/2 degrees). Also, when I checked the vacuum, it was right at 20 at idle. At 2,000 RPM's, it was at 18. Attached is the smog cert.

Now the bad news: I am told by my STAR-certified smog man that the state is moving to have ALL vehicles (1995 and older) get smogged at "centralized" smog stations. This will be implemented sometime in the next 2-3 years. My guy sez that the state will still allow independents to do STAR smogs, but at a price. He is currently paying about $300 a month just to have the "sniffer" smog machine. He leases the machine because they are very expensive and need to be calibrated by an independent official.

God! These Scouts are fun to work on, and I can say that it is "smogged"!
 
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