I'll try to take out two questions in one go here. I just found a little green cable hanging near the master brake cylinder, anyone who's got a clue what it's good for? I've indicated it with the green arrows in the picture. Also. there's this lock like thing someone mounted under the dash, it says Audiovox on it, and it's like a lock on a shaft going through the wall into the enginge compartment. When you look at the other end, the only thing you see sticking out is this long cable that goes all theway up to the front of the car, to a small plate with four bolts on it. It's not the hood release cable, but something else. I cannot figure out whatit's there for, but I' curious of its purpose. I'm not 100% that this cable is connected to the Audiovox lock, but it looks like they would enter at the same spot on either side of the wall. This is indicated by red arrows... ???
part 2 Since when does the airfilter get to enjoy an oilbath without telling me.... I took off the air box cover and to my surprise there was a puddle of oil in there. By looking at the filter it looks like it's gone through there, and not through the carb. There is a small hose coming back into the airbox, which looks like a suspect source, but I'm not sure. Any clue to what this means?
My opinion on the audiovox thing is that it's some sort of key operated ignition/battery lock/theft-deterrent that was disconnected somewhere along the line. I would guess that the oil came from the < I can't think of it, pcv valve maybe?> that goes from the valve cover to the aircleaner.
Oil is coming from the breather - replace the PCV valve in the intake manifold....that may help. The little green wire looks like a horn wire!uzzled:
Thanks for the updates, I checked the internet site of Audiovox, and they seem to be involved in alarms and that kind of stuff. It will be taken out this weekend, there's enough cables and junk as it is. As to the reason for the oil spill, a PCV valve, I'll have to take a picture of all the stuff going in and out of the carb area to figure out what that is. I'm not too hi on hoses and cables, but most seem to be in need of some kind of attention. The horn is connected, and I think it sits too far up at the front, for that green wire to reach it. I'll have a look and see if I can find the connection point for it somewhere. I can tell it's been used before, the socket is worn, so it was connected to something a while back. The old Ford I had in Australia had half as many cables and hoses, and there was plenty of room to work around everything in the engine bay, the straight 6 250 gave you alot of room,this feels like alot more cramped, and I'm sooooo happy I'm not dealing with a new car. Then I would have just o No: o No: o No:
The PCV valve is a small cylindrical dealie that fits into a rubber grommet in the back of your intake manifold. There is a rubber line running from it - all the way to the front of the carburetor on the bottom. It's a 3/8" hose. If the PCV valve has been there a long time, you may have to really tug at it to get it out. It just slips into the grommet....no threading or screws to loosen.
The lock thing That looks like the old alarm systems they had in the mid 70s and they would mount it on the fender. A old college girl friend had a Pacer that was putting oil in the air filter but I blamed it on blow by the rings since the car had a lot of miles on it. Replaced the pvc valve and it still did it.
The pcv valve goes from your valve covers to your aircleaner. It's meant to recycle the unburned blow-by gas that builds up in the oil pan back into the aircleaner to be sucked back into the engine and be burned. The following links are based off a jeep but the same basics apply to any carb'd car. This should help you out with the oil in the aircleaner. This should help you out with all the "whats that" aircleaner questions.
One of them old alarms that allot of times were installed right in the side of left fender, or even in the left fender wheel well.
They must've changed the location of the pcv hose routing in 72. Regardless, the PCV valve is located in your intake. Although I really think it's still routed to the front of your carbuzzled:
That's what it is.....ding, ding, ding......give that man a cigar!! :Brow: I have removed several of these......because they had no key anymore, and the hood was locked closed. :rant: :laugh: Mike
On all Buicks, except for the Nailhead engines, the PCV valve is in the back of the intake manifold. A hose runs from the valve to the FRONT of the carburetor on 4 bbl applications. If the PCV valve is not working properly, crankcase pressure builds up and starts to force oil out of the engine in all kinds of weird places, first of which is usually into the air cleaner. The hose from the air cleaner to the valve cover is a breather (not a vent). When vacuum is drawn through the PCV valve to evacuate the crankcase, the engine needs to draw in fresh air, thus from the air cleaner. When the PCV stops working then it works backwards forcing oil into the aircleaner. As the engine accumulates miles there is more and more blow by created and eventually more than what the PCV system can handle. So make sure the PCV is working 100% before getting concerned about blow by. A non functional PCV valve is also the main cause for valve cover leaks, leaks at the front and rear of the intake and the rear main seal. I believe the green wire is for the underhood light. I think the highway horns had two rubber tipped push together connectors. P.S. Be careful when installing the PCV valve. First make sure you have the correct one. It is also best to change the grommet, the original will be hard as a rock. The valve has two specific ends one is larger diameter than the other, the large end goes into the grommet, it will be a very snug fit. Usually a little silicone grease will help in the grommet's hole. Be VERY careful not to push the grommet down into the engine when trying to get the valve in. If you do push it through, your car more than likely has the original intake gasket which is also a valley pan. Usually the grommet will land on the valley pan. You can use mechanical fingers to retrieve the grommet back up through the hole in the intake. Dave
My Riv has a green wire just like that. It connects to the temp sensor in the back of the driver's side head. When the STOP ENGINE light comes on, then you know your motor has REALLY overheated because that sensor is more for the temp of the metal in that area and not the coolant. But that is for a 69 Riv. Yours may or may not be for that.
