Tercel4WD.com

Had the pre-smog test this morning. Emissions are mostly better. Max allowed: HC 137 / CO .76 / NO 1078 Today's test: HC 353 / CO 3.7 / NO 1344 Previous test on Oct. 20th: HC 18032 / CO 6.1 / NO 860 MY HC and CO dropped a lot. NO went up. I will not be able to get to the exhaust shop for a new cat f...

Well I took member's advice and today I began repairs on my old engine. I replaced the AAP membrane on my old carb. I used the one which came from my junkyard engine. I also cleaned out the EGR valve. I put my carb back on and turned on the ignition. No more smoke on start up! All of the smoke and f...

Thank you again for more excellent ideas. I swung by the junk yard yesterday and found an '84 tercel with 64,674 miles on it. I could not believe it either, until I noticed that the interior of the car looked to be in very good shape. Perhaps only driven to church on Sundays? I pulled the plugs. All...

My memory is pretty bad too. I often end up with a pile of spare parts. As far as the timing covers are concerned, I leave the top cover off. Put the bottom one on, it has the timing marks! It will make the next belt change a 15 minute job, instead of a couple hours. I really have been towed to a pa...

Thank you for excellent advice. I did not realize what the AAP was. I had checked and tested the wrong valve. There was gas coming out of the vacuum line when I removed it from the AAP. As mentioned, my current motor produces an awful lot of blue smoke for the first mile. Is it possible that the ext...

Thank you. will consider that. I just pulled the carb and ERG valve. Will probably replace both after the end of this month. While removing vacuum hoses I noticed that a couple of them had gas in them. One hose attaches to the passenger side bottom front corner of the carb and attaches to the bottom...

Thank you once again to all. I tried to see if the EGR system is functioning. The way I do that is to to hold a small screw driver under the valve and rest the tip on the valves membrane. Then I rev the engine and check for movement of the screwdriver. I could not see or feel any movement, but with ...

Smog readings: 10-19-11 (on dyno) rpm / %co2 / %02 / HC(ppm) / CO % / NO(ppm) 1897 / 9.5 / 2.7 / 5139 / 5.50 / 993 1969 / 9.2 / 2.7 / 5318 / 5.97 / 861 my columns did not line up well. Iwill do this instead: 10-19-11 (on dyno) at 1969rpm HC was 5139 / CO was 5.97 / NO was 861 10-20-11 after tuneup (...

Am in Fresno, an enhanced area. Yesterdays results went to dmv. Todays did not. Have been labeled gross polluter before, hope that doesn't finish off my car. In the past, it has always taken 2 or 3 attempts to pass. Will post the readings tomorrow (they are on my desk at work). Will check the vacuum...

Will appreciate any help I can get. 85 tercel. approx 140,000 miles on this engine. Passed smog 2 years ago (Calif), with very low emission readings. I had tuned the car , replaced plugs, wires cap and rotor and cat. Now, 2 years and only 9000 miles later I failed smog. HC and carbon monoxide way of...