If you heard exhaust noise from the rotted tube, there must have been some opening to the exhaust gasses. I wish I could recall whether or not I specifically looked at the backs of my heads in 96 or so when I rebuilt my engine, but I just cannot. I was surprised at the thin metal and the black shiny paint on these tubes, but I assumed they did not have to contend with the full force and temperature of the exhaust stream - I assumed they merely conducted the air stream form the A-I-R pump down to the cat. I'll be waiting for your results. Dick Benjamin ----- Original Message ----- From: "Daniel M Wing" <imp1983@xxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Sunday, June 22, 2003 4:10 PM Subject: IML: Smog tubes on my 83 > Oh boy, you guys are making my day!! > > I went and had those tubes replaced with new ones > about 10 years ago, because the driver's side one > was rotted and you could hear the noise inside. I > tried to do it myself but couldn't get the bolts loose. > > Hmmm. I will be pissed if I wasted my money, BUT > those new tubes are rusting near the firewall already > and I could just leave them off. > > And yes, they DID have gaskets on them. > > I will definitely let you guys know what I find. > > According to that book, they added air injection mounting > areas to the exhaust in 73. (Doesn't mean they used > them I guess.) > > So far the alternator, air pump, power steering > and the belts are off. > > And yes Dick, I didn't remove the P/S hoses and thanx > for letting me know about the A/C compressor. > > Now out to the garage I go . . . > > Dan Wing > Marcy, NY USA > > imp1983@xxxxxxxx > > ________________________________________________________________ > The best thing to hit the internet in years - Juno SpeedBand! > Surf the web up to FIVE TIMES FASTER! > Only $14.95/ month - visit www.juno.com to sign up today! > >