1972 454 Smog TSC Solinoid HELP

[Monte M.]

I am putting the smog system back on my 72 after twenty five years of it sitting in a box. The car is a 454, 4 speed with A/C and power brakes. I do not know if by chance the automatic might have a few different hoses or not. I just aquired the few missing pieces and was having trouble routing all of the vacuum line correctly for the whole system. Especially the TSC solinoid (transmission controlled spark).
Do any of you have some pictures of an original set up that you can share with me. I have a ton of books, but they are just not clear enough to make out where everything goes.
Any input at all would be appreciated, but as we all know, with this stuff, a picture says a thousand works.
Just keep driving them and enjoying the guys.

[Robert E.]

Re: 1972 454 Smog TSC Solinoid HELP

Monte, I found this diagram on the Dr.Rebuild website. Hope it's of some use to you.

http://www.docrebuild.com/dr-r-web/3750348.HTML

Robert

I am putting the smog system back on my 72 after twenty five years of it sitting in a box. The car is a 454, 4 speed with A/C and power brakes. I do not know if by chance the automatic might have a few different hoses or not. I just aquired the few missing pieces and was having trouble routing all of the vacuum line correctly for the whole system. Especially the TSC solinoid.
Do any of you have some pictures of an original set up that you can share with me. I have a ton of books, but they are just not clear enough to make out where everything goes.
Any input at all would be appreciated, but as we all know, with this stuff, a picture says a thousand works.
Just keep driving them and enjoying the guys.

[Monte M.]

Re: 1972 454 Smog TSC Solinoid HELP

Robert,
Excellent picture. Thanks for the help. That solves the TCS question for sure, but I still have the rest of the system to set-up. I think I know where most of the lines go, but I would rather take the time to double check and make sure I am doing the whole system the correct way.
Plus, I think I am missing a rigid (steel tube) line that is on the passenger side that heads backwards tword the firewall and by the distributor. Any help with that line would help also. I think I have everything but that line.
Again, any input will help.
Thanks,

[Bill C.]

Re: 1972 454 Smog TSC Solinoid HELP

Monte,

That picture is not totally correct.
I will post the correct stuff routing for you asap.

[Monte M.]

Re: 1972 454 Smog TSC Solinoid HELP

Thanks Bill, That is why I am trying to get some pictures. A while back a guy was nice enough to send me some pictures of what he thought was his "original car". I tried to put my original parts and tubes in the way his pictures showed. I realized that either his car was not original or my original parts were one of a kind. I felt really bad for the guy.
We are all learning as we go, but there is no substatute for research. Especially before you buy an "Original Car"
Looking forward to see what you have.

[Bill C.]

Re: 1972 454 Smog TSC Solinoid HELP












I have a bunch of other pics if you need.

BTW --
that steel tube for the vacuum advance does not exist anywhere - not available from any parts vendor at all.
I would make you a copy but I recently sold the car and don't have any access to it any longer.

[Monte M.]

Re: 1972 454 Smog TSC Solinoid HELP

Bill,
Beauitiful car. This goes a long way in getting me to where I am headed. I have one thing different on my car. On the intake manifold where the vacuum port is, mine has two outlets on it. You have one outlet that goes to the check valve and heads over to the driver side of the car by the canister. I have another port on that fitting that I think goes to a rigid line that heads straight back tward the firewall and goes just outside the ignition shield support.
Have any of you other guys seen this tube or fitting. Over the years, there is a chance that some things were changed on my car that I am un aware of.
Any other picture from some other cars might shine some light on this for me.
Thanks Bill, your pictures will help me get a lot closer to being done. Our cars seem to have the same options, so I do nt thnk there would be a difference there.

[Patrick H.]

Re: 1972 454 Smog TSC Solinoid HELP

On the intake manifold where the vacuum port is, mine has two outlets on it. You have one outlet that goes to the check valve and heads over to the driver side of the car by the canister. I have another port on that fitting that I think goes to a rigid line that heads straight back tward the firewall and goes just outside the ignition shield support.
Have any of you other guys seen this tube or fitting. Over the years, there is a chance that some things were changed on my car that I am un aware of.
Any other picture from some other cars might shine some light on this for me.

Monte,

If you look closely, that rigid tube you describe goes to the automatic transmission, which is probably what your car has vs Bill's 4 speed.

Patrick

[Bill C.]

Re: 1972 454 Smog TSC Solinoid HELP

Monte,

Can you post a picture of that tube?
It does not sound right for your car. It sounds like the tube used to plumb the vacuum modulator on the TH350 and TH400 automatic transmissions.

[Monte M.]

Re: 1972 454 Smog TSC Solinoid HELP

Patrick,
As I mentioned, I do not have the tube. Now I understand why. That is why I was asking about that tube specifically. It makes a ton of sense that the tube is missing from my pile of parts, but my intake manifold does have two tube nipples unlike the one in the picture that has one. Maybe they ran out of single tube vacuum fitting at the time my car was assembled and put a double tube fitting on at the time because that is what they had. Or maybe someone changed it out over the years.
Thanks for clearing it up because I have seen that trans tube in many photos and notknowing what it was, I was wondering where it went.
That is why in my initial post I asked if there was a difference in the vacuum set-up on a 4-speed car vs an automatic car.
Thanks guys, I could not have figured it out without you.

[Monte M.]

Re: 1972 454 Smog TSC Solinoid HELP

Patrick,
The initial question was, "What is that tube? I think I have all of my original parts except that tube?" Now that I know it is for an automatic car, it makes tons of sense why it is not in my pile of 4-speed smog/TSC parts.
Bill, I do have my original vacuum advance (rigid portion) tube. It was the bigger rigid tube that I was wondering what it did. My guess is it is the modulator vacuum tube? You just posted that, so thank you.


Thanks again for all the help guys. Hope I can return the favor some time.
M