SC smug pump q's and removal help

nkotselas · nkotselas's Garage

Hi everyone, just looking for some help here

Let me just fill you in, I have a euro 78sc that originally had a smog pump (i believe!). To pass smog a cat with an o2 sensor was installed. Now the car has a euro 3.2. That means that the o2 sensor is not doing anything, and I don't think it has a smog pump.

Now for the embarrassing part, where is this smog pump? I always thought it was in the smugglers box, because there was a long tube shaped thing in there not related to ac. Judging by the pictures though I see though it is next to the engine. Opposite of where the ac would be right?

I recently read that its not necessary to have an smog pump for CA smog, so I would like to remove it. The o2 sensor will be present (although not working) to pass the visual. Is it ok to remove the smog pump? I will then neither be running a pump nor an o2 sensor, but rather a completely open loop. which I believe the euro 3.2s are built to run like that, but I get lost with all the conversions. Will this affect the cars reliability or driveability in any way?

Thanks in advance for any help!

crustychief · crustychief's Garage

On a stock SC the smog pump is on the left side of the engine driven by a belt like the AC is.

nkotselas · nkotselas's Garage

OK, are there any parts that would connect to a smog pump outside of the engine? or would an engine swap pretty much get rid of all the smug pump stuff?

Just a side question, what is this in my smugglers box? I haven't seen it in other smugglers boxes... but I've only seen a few, its not like that's the first thing that comes up when i see another 911

ossiblue · 10-03-2011, 07:38 AM

Quote:

Originally Posted by nkotselas

OK, are there any parts that would connect to a smog pump outside of the engine? or would an engine swap pretty much get rid of all the smug pump stuff?

Just a side question, what is this in my smugglers box? I haven't seen it in other smugglers boxes... but I've only seen a few, its not like that's the first thing that comes up when i see another 911

All parts of the smog pump connect to the engine, there would be no parts in the front of the car. There would be the pump, pump bracket, check valve, "spider" tubes that run to the six exhaust valves, and tubes that are tapped into the head at the exhaust ports. All can be removed but you would need to plug the heads with special plugs when you remove the exhaust tubes (sold by our host.)

Someone else can confirm this as I'm not familiar with the 3.2 but I believe it is the EFI system and has a different emissions system than the 78SC. If so, you will need to comply with the emission requirements of the new engine.

The device in your smuggles box looks like a charcoal canister for fuel vapors, though I've not seen one in that location or of that design but, again, your car is a Euro. Typically, you'd find AC parts in there but the lines do not look to be AC lines so my guess in the charcoal canister.

nkotselas · nkotselas's Garage

Thanks!
So is the charcoal canister removable? I was planning on relocating my battery there but I didn't want to remove this without knowing what it does

ossiblue · 10-03-2011, 05:59 PM

Quote:

Originally Posted by nkotselas

Thanks!
So is the charcoal canister removable? I was planning on relocating my battery there but I didn't want to remove this without knowing what it does

I'd wait until someone can confirm that is a charcoal canister before removing it. If it is, yes it can be removed but I'd suggest relocating rather than removing. Trace the hoses and find a convenient location--U.S cars had them in the front by the battery, in the engine compartment, and in the rear passenger wheel well, over the years. Whatever you do, be sure no hoses are left open to the air.

kerthunk · 10-03-2011, 06:14 PM

The charcoal canister for a US '78 is in the engine bay and looks nothing like that. It is interesting that one of the lines looks to just dump out under the car. I've never seen one before.

Do you have a pic of your engine?

ossiblue · 10-04-2011, 08:10 AM

Now that I look at that again, I'm not so sure it is the canister. There appears to be a check valve in the center hose connection and as kerthunk pointed out, the other hose appears to dump out the bottom of the smugglers box. I've never seen a set up like this before and hopefully someone knows what this is. I still suspect it's connect to the fuel tank in some way--maybe it's the vapor condenser where the fumes/overflow collect? It looks like there is some printing on the outside. Could you remove it and get a picture? Maybe try to trace the hose/line that is connected to the blue device (check valve?) at the top and let us know what you find. I wouldn't remove it until you find out what it is.

nkotselas · nkotselas's Garage

I do have a pic of my engine, but I can't upload it from my phone. Ill get it up when I can. Reading what it says is a great idea, I should have thought of that Haha. I don't remember it saying much but ill check. I've also heard that this area was originally planned to house some heater parts. Can that be what it is?

ossiblue · 10-04-2011, 08:53 AM

Doubtful it's part of a heater. The factory system took up the whole space and didn't have a component like that. Curious to find out what it is, and if it's peculiar to Euro models.

nkotselas · nkotselas's Garage

Ok guys this is what I've got so far:

tube says purolator on it followed by the numbers 00 701 and 1108 967. I didn't remove it, so I couldn't tell if there was writing on the back but it didn't look like it.

This is where it comes out from underneath the car, I couldn't get a much better view so I followed it with my hand. It seemed to go up a bit, out of sight, then run down the side of the car. It seemed like it fed into a hard, thinner tube that ran all the way down to the engine bay.

here is a picture of the engine bay, this line feels like it changed shapes and sizes 3 times the entire way, so I hope this is the correct one, but I would bet on it. It connect to nothing.

I was thinking about backtracking it to make sure it was not doing anything next time I have it up and remove it. Still any idea what original purpose this served? It looks like it was stretched about as far is it would go. So i'm thinking somewhere towards the front right side of the engine compartment?

Josh D · Josh D's Garage

Looks like some type of fuel filter to me. If this has a Motronic 3.2 installed in an SC, the whole fuel system might be bastardized.

nkotselas · nkotselas's Garage

Quote:

Looks like some type of fuel filter to me. If this has a Motronic 3.2 installed in an SC, the whole fuel system might be bastardized.

I tend to have the bastardized problem a lot

. the car has a pretty mysterious history. I followed the line on top and it went behind the fuses and into a hole behind the right side of the fuse box. Is it maybe the windshield washer pump? I typed that into the search and came up with this Headlight washers. Can I remove this pump? it looks similar, but I don't have headlight washers. I always thought that the windshield washer pump was the the little guy by the battery though

nkotselas · nkotselas's Garage

Another (somewhat crazy) thought came to mind. My car apparently went to one of the best shops in Germany for work. I know its a long shot, but is it possible since this looks like a washer pump and it leads to the rear of the car, that they made washer for the rear glass? I don't think I've seen of heard of that before, again, a long shot but there is a wiper back there so perhaps possible?