Ca. Smog Test UpdateFor any of you Ca. early truck owners that followed this thread, and especially for the two gurus that showed me the how/what/why/ where of the complex Ca. emissions setup on my '80 F 100 4.9....Here are the results of the smog test.I was not feeling real good about the...

Now I get it. It IS a loop. The exhaust manifold has a through hole in the out side exhaust manifold jacket. Find the upper hole for the choke assembly vacuum down pipe and I have a loop. Forehead slap ;-)All the drawings you guys have posted have been a blessing. I learned something and...

Thanks for those parts break-out pics. All good stuff. I have everything routed correctly now as per the sticker. You to guys got me over that hump so I'm pretty happy and beholden to for your patience and help. I wanted to get it 'factory' and you got me there.I'm finishing up today with...

Both you and BKW have me on the right track now. the left valve 9D473 that BKW wrote me about and again with the 12A091, the valve on the right are the valves I have. The info on the 4 port valve explaning that it is just two 2-2 ports stacked allowed me to do the cold tests outlined. I'll...

Mil1ion and BKW,Here is the best pic I could get of the numbers on the four nipple valve on the left: With my cheaters on and a magnifying glass it reads: V28 3180 There are letters near each of the four ports, and reading from the bottom up they are: S, E, M, D. The hoses...

You guys are good! No quit in either of you. This pic will probably explain why I'm hung up on VCV's and where they are located. Here is my setup. Not correct, if I'm not mistaken right?I suppose the one on the left is correct and the one on the right is a workaround a PO added. Those...

Thanks for all of the above Bill. I'm glad that that solenoid is not correct. I'm not betting with you anymore ;-)I am just going by the diagram now. I guess the diagram location of the second VCV shown by the distributor is approximate and that both are supposed to be together up front...

YES...there it is! Great drawings Mil1ion. It shows the VCV's and the hose I'm missing on the back side..and a breakout of the thingy I'm missing on the driver side up by the valve cover, 9D474.I think you put me over the top.With all the diagrams you sent along and this last set make it...

Yes, those last 2 posts will help. The last one cleared up the DV-TW mystery....delay valve-two way, with a part number no less.Those 4 numbers on the carb is what the rebuilders are using for verifying the application. The numbers are located on the carb base/driver side. There is a seller...

Thanks Mil1ion. Those will help me. I'm on the way to Ford or aftermarket to track down the VCV location confusion. I need to test some way to see if they open and or close right. Probably end up at the wrecking yard.I'm good for now. I'll post pics in my gallery and maybe feedback from...

Thanks for the continued help. I appreciate it! I would like to see the parts illustration for the '80 4.9 if I could.I know I'm coming off a little dense when I have a diagram right here. What throws me is the diagram location of the one VCV located near the distributor. I'm pretty sure...

Yes Bill, McAuley Motors is still here. I bought a car from them a few years ago. If I can't get one of those good vacuum renderings from you nice guys here I'll drop down there and ask around. You took all my '80 parts huh ;-) A lot of those old parts are discontinued and I have become a...

Good info, Thanks for helping. Yes, I live in Merced Ca. in the central valley an hour above Fresno on 99.Thanks, Dave

This is a little better.

Here is the left side of the sticker on the radiator cowl. A little dark in the garage and the flash was too harsh to read at all. I hope it of some use to you. I will get a better pic in the morning and send it along or just send you my album so you can zoom in.Again, I appreciate the...