Ok, I checked the oil 4days ago when I bought it, and it seemed to be pretty new, still transparent with little discolor. As far as power after the engine is warm...I'm assuming my power has been increased since I made the changes. The previous owner mentioned to me that he could drive 55 comfortably, and could top out at 60mph. Since the changes I made, I have been able to drive and top out at 70mph without any problem. Car seems to have the power it should have, but it has been almost 15yrs since I owned such an older carburated vehicle, so I really don't know how to base my assumption that I have sufficient power or not.
As far as the O2 sensor, I will check on that. Before I bought the vehicle, I ran a Carfax report, and it noted that the vehicle had failed emissions about 3 - 4 times consecutively in the late 90's and early 2000's. It also mentioned that before it finally passed in 2003, that the O2 sensor had been replaced, as well as the Spark plugs & Wires, Spark controls, PCV system repaired.
One more thing to note, and this may have something to do with the O2 sensor. I noticed when I bought the vehicle (Refer to pictures)
This bracket/ring was not even connected to the choke control or spring that regulates the choke, Somehow it had fallen off or became disconnected, leaving the choke on/open 100% all of the time. It was like this when I got it, and I am wondering if this was open all this time and not regulated, would it affect the O2 sensor in anyway?
I noticed this before my first test, but thought nothing of it...wasn't to familiar with the carb or parts, but after the 2nd emissions test that I did rather good on, I saw the round bracket below the assembly, brought it back up, seated it back into it's place and connected the spring. It was after this repair, and changing a vacuum valve that was faulty, that I went off the charts on my 3rd test. The vacuum valve that I replaced and the MCV (Mixture Control Valve) are between the air supply and carb. I didn't have to replace the MCV because I tested it after replacing the vaccum valve and it was working again.
Thanks for your quick response, and I will check the O2 sensor as soon as possible, but if the above mentioned makes any difference or points us in another direction, please let me know, and thanks again for your help.
Saturday, January 17th, 2009 AT 10:40 AM