rick phillips Posted February 10, 2004 Share Posted February 10, 2004 while driving my z a few days ago the muffler seperated from the exhaust pipe. not wanting to take the time to try to get it back together i removed the muffler and drove home without it. while it was a little bit louder i noticed the gas fumes had disappeared. my muffler is in the stock location and exits right under the bumper. maybe a small diameter muffler dumping somewhere around the rear axle would let the fumes dissipate and not find ther way into the car. just a thought rick Quote Link to comment Share on other sites More sharing options...
Guest ozcheek Posted March 16, 2004 Share Posted March 16, 2004 Hi Rick, Im fighting the fumes problem myself. I have replaced all the rubber in the car and sealed all the holes in the firewall as well as the hoses going through the rear of the car. New tail light gaskets. Recently I purchased a carbon monoxide detector from Safe Home Products .com The first one didn't work, and the replacement is on the way. Ill post the results, as they happen. It's a real frustration to have invested so much money in a car, and not even be able to drive it without getting sick. Has anyone had success building a smoke generator to find the point of entry? Oz Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted March 17, 2004 Share Posted March 17, 2004 If you could fit a small muffler in before the rear-end of the car, you could still have the exhaust exit in the same location. I did quite a bit of thinking about these exhaust issues with the Z, and came to the conclusion that the problem is more likely to be a problem with low exhaust velocity, rather than the location of exit. Most of us have added larger diameter pipe, which reduces low RPM exhaust velocity, and then the common removal of the chin pan creates turbulence that doesnt help matters any. Before my Z was wrecked, I was going to make a chin pan and put a smaller diameter pipe just before the muffler and then a smaller diameter tip, and see if that helped (I predicted that it would eliminate the problem). Quote Link to comment Share on other sites More sharing options...
Guest ozcheek Posted April 1, 2004 Share Posted April 1, 2004 The exhaust fume problem is resolved thanks to the good suggestions of the group and the help of very accurate multi gas sniffer. The first CO tester I ordered was a waste of money and time. I should have realized that at a cost of $40.00 I wouldn't get much of a tool. The second one came from Industrial Test Equipment (516)883-1700 and I paid $165.00 a fraction of what good heath is worth. The beauty of this one is it can be configured to run 12 volt or 115/120 AC house voltage. It senses Propane Carbon Monoxide and several other gases. The company can adjust the sensitivity to a lower range for instant alarm. I had mine calibrated at 50 ppm. If any one would like more info they can e-mail or call me. Daytime #(800) 648-7970 ext 167 Oz Cheek Quote Link to comment Share on other sites More sharing options...
Phantom Posted April 2, 2004 Share Posted April 2, 2004 So what did you discover with the sniffer? Leaky gasket? Hole you missed? Quote Link to comment Share on other sites More sharing options...
Guest ozcheek Posted April 3, 2004 Share Posted April 3, 2004 The down pipe gasket had a slight leak behind the heat shield, plus 1 hole I had missed in the firewall right side down low. I also put foam in the vent holes under the emblems in the rear quarter panels. The car is a real joy to drive now. Quote Link to comment Share on other sites More sharing options...
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